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OEM Mercury EFI Oil Pump
Mercury 2.5L / 3.0L EFI Oil Pump Assembly
This OEM Mercury oil pump assembly fits select Mercury and Mariner 150HP-250HP EFI outboards along with compatible 240 EFI SportJet applications.
Mercury part number 8M0185615 supersedes several earlier EFI oil pump assemblies and is used on multiple Mercury 2.5L and 3.0L EFI powerhead platforms.
Compatible Applications
| Horsepower / Model | Engine Family | Engine Type | Application Notes |
|---|---|---|---|
| 150 EFI | Mercury / Mariner 2.5L | EFI 2-Stroke | Select serial-number applications |
| 175 EFI | Mercury / Mariner 2.5L | EFI 2-Stroke | Select EFI powerhead applications |
| 200 EFI | Mercury / Mariner 2.5L | EFI 2-Stroke | Select high-performance EFI models |
| 200 EFI | Mercury / Mariner 3.0L | EFI 2-Stroke | Select 3.0L EFI applications |
| 225 EFI | Mercury / Mariner 3.0L | EFI 2-Stroke | Select offshore and EFI applications |
| 250 EFI | Mercury / Mariner 3.0L | EFI 2-Stroke | Select 3.0L EFI applications |
| 225X EFI Pro Max | Mercury Racing 3.0L | High Performance EFI | Select Pro Max applications |
| SeaPro / Marathon | Mercury 3.0L | Commercial EFI | Select commercial-duty applications |
| 240 EFI / 240 EFI M2 | Mercury SportJet | EFI Jet Drive | Select SportJet powerhead applications |
Always verify your engine serial number before ordering internal engine lubrication components.
OEM Part Numbers & Supersessions
| Type | Part Number |
|---|---|
| Current Mercury OEM Number | 8M0185615 |
| Mercury Supersession | 8M0128081 |
| Mercury Supersession | 8M0101630 |
| Mercury Supersession | 879892T |
| Mercury Supersession | 879892T03 |
| Mercury Supersession | 879892T04 |
| Mercury Supersession | 879892T05 |
What This Oil Pump is Used For
This Mercury EFI oil pump circulates engine oil throughout the powerhead to lubricate crankshaft bearings, rods, pistons, internal rotating assemblies, and other critical engine components.
Proper oil pressure and oil flow are essential for protecting Mercury EFI 2-stroke engines from premature wear and engine damage.
Oil pump wear, contamination, internal scoring, or oil pressure problems can contribute to serious powerhead damage if not repaired promptly.
Oil pumps are commonly replaced during complete engine rebuilds, oil-pressure diagnosis, or major EFI powerhead repair work.
Key Features and Benefits
- OEM Mercury EFI oil pump assembly
- Fits select Mercury and Mariner 2.5L and 3.0L EFI outboards
- Compatible with 240 EFI SportJet applications
- Replaces multiple earlier Mercury oil pump assemblies
- Supports proper engine oil pressure and lubrication
- Critical internal engine lubrication component
- OEM Mercury fit and compatibility
- Common replacement during powerhead rebuild service
Oil Pump Details
- Brand: Mercury Marine
- Part Number: 8M0185615
- OEM Supersessions: 8M0101630, 8M0128081, 879892T, 879892T03, 879892T04, 879892T05
- Applications: Mercury / Mariner EFI 2-Stroke Outboards
- Compatible Engines: 2.5L & 3.0L EFI Platforms
- Compatible Models: EFI, Pro Max, SportJet, SeaPro, Marathon
- System: Engine Lubrication System
- Use: Engine oil circulation and oil pressure supply
FAQ
What engines does this oil pump fit?
This oil pump fits select Mercury and Mariner 150HP-250HP EFI 2-stroke outboards and 240 EFI SportJet models using the listed OEM numbers.
What OEM numbers does this replace?
This pump replaces Mercury part numbers 8M0101630, 8M0128081, 879892T, 879892T03, 879892T04, and 879892T05.
What does an oil pump do?
The oil pump circulates engine oil throughout the engine to lubricate and protect internal moving components.
What are symptoms of a failing oil pump?
Low oil pressure, internal engine noise, warning alarms, or poor lubrication can indicate oil pump problems.
Should engine serial number be verified before ordering?
Yes. Mercury used multiple oil pump variations depending on engine family and production range.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Internal engine lubrication components should be installed only by qualified technicians.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
8M0185615, 8M0128081, 8M0101630, 879892T, 879892T03, 879892T04, 879892T05, Mercury oil pump, Mercury EFI oil pump, Mercury 2.5L oil pump, Mercury 3.0L oil pump, Mercury SportJet oil pump, Mercury Pro Max oil pump, Mercury SeaPro oil pump, Mercury Marathon oil pump, OEM Mercury oil pump
8M0128081
8M0185615
879892T
879892T03
879892T04
879892T05
Genuine Mercury OEM Adapter Plate Gasket
Mercury 8M0205773 Adapter Plate Gasket – Select 150–500 HP Outboards
The Genuine Mercury 8M0205773 Adapter Plate Gasket is an original equipment replacement gasket used in the adapter plate assembly of select Mercury outboard engines. It is associated with Mercury OEM reference numbers 8M0205773 and 8M0142274.
The supplied Mercury application records cover selected 3.4L V6, 4.6L V8, and 5.7L V10 outboard platforms, including Verado, Pro XS, SeaPro, AMS, and Mercury Racing configurations.
Applications include specified 150, 175, 200, 225, 250, 300, 350, 360, 400, 425, 450, and 500 HP models, depending on engine displacement, product family, and serial number.
This is a Genuine Mercury OEM replacement part for use when servicing the applicable adapter plate or related powerhead-to-midsection assembly.
Product Information
- Part Number: 8M0205773
- Brand: Genuine Mercury OEM
- Product Type: Adapter Plate Gasket
- OEM Cross Reference: 8M0142274
- Application: Adapter Plate / Powerhead-to-Midsection Assembly
- Engine Type: Mercury Four-Stroke Outboards
- Engine Platforms: 3.4L V6, 4.6L V8, 5.7L V10
- Horsepower Coverage: Select 150–500 HP
- Engine Families: Verado, Pro XS, SeaPro, AMS, Racing
- Condition: New OEM Replacement Part
OEM and Cross Reference Numbers
The following Mercury part numbers are associated with this adapter plate gasket application.
| Part Number | Brand | Description |
|---|---|---|
| 8M0205773 | Mercury | Current Listed OEM Adapter Plate Gasket |
| 8M0142274 | Mercury | OEM Cross Reference |
Cross-reference numbers are provided to assist with identifying the correct replacement. Confirm the applicable Mercury parts diagram before ordering.
What This Part Is Used For
The adapter plate is an important component of the outboard assembly connecting the powerhead to the engine's midsection. The adapter plate gasket provides a sealing interface between the mating components specified in the applicable Mercury parts diagram.
A properly installed gasket helps maintain the intended separation of passages and mating surfaces within the adapter plate assembly.
Common Service Applications
- Adapter plate removal and reinstallation
- Powerhead removal or installation
- Repair of leaks associated with the adapter plate sealing interface
- Inspection or repair of adapter plate mating surfaces
- Engine service requiring replacement of disturbed gaskets
- Specified Mercury Racing and Verado powerhead service
Important Fitment Note
Mercury 8M0205773 is not a universal gasket for all 150–500 HP Mercury outboards.
Mercury uses different adapter plate and gasket configurations depending on engine displacement, model family, midsection design, and serial range.
The fitment tables below are based on supplied Mercury parts-catalog application records. Some records identify the gasket within an Adapter Plate assembly, while others reference related Cylinder Block, Oil System, or Adapter Plate and Driveshaft Housing catalog sections.
Verify the complete engine serial number and the correct OEM parts diagram before ordering.
Compatible Mercury Outboard Applications
The following application tables organize the supplied Mercury catalog listings by engine displacement and model family. The serial numbers shown are the starting serial numbers listed in the supplied records.
Mercury 3.4L V6 – 150–225 HP
Selected Mercury 3.4L V6 applications include standard, Pro XS, SeaPro, and Racing configurations.
| Engine Application | Displacement | Serial Range |
|---|---|---|
| 150 HP V6 | 3.4L | 3B547096 and Later; 3B648748 and Later |
| 175 HP V6 | 3.4L | 2B529482 and Later |
| 175 HP V6 Pro XS | 3.4L | 2B529482 and Later |
| 200 HP V6 | 3.4L | 2B529482 and Later |
| 200 HP V6 SeaPro | 3.4L | 2B529482 and Later |
| 200 HP V6 Racing | 3.4L | 3B547096 and Later; 3B648748 and Later |
| 200 HP V6 Racing – 15-Inch Midsection | 3.4L | 1E054618 and Later |
| 200 ROS HP V6 – 15-Inch Midsection Racing | 3.4L | 1E054618 and Later |
| 225 HP V6 | 3.4L | 2B529482 and Later |
Mercury 4.6L V8 – 200–360 HP
The supplied Mercury records include numerous 4.6L V8 applications, including Verado, Pro XS, SeaPro, CMS, AMS, APX, and Racing models.
| Engine Application | Displacement | Serial Range |
|---|---|---|
| 200 HP V8 Pro XS | 4.6L | 2B529482 and Later |
| 225 HP V8 Pro XS | 4.6L | 2B529482 and Later |
| 225 HP V8 SeaPro | 4.6L | 2B529482 and Later |
| 250 HP V8 Pro XS | 4.6L | 2B529482 and Later |
| 250 HP V8 SeaPro | 4.6L | 2B529482 and Later |
| 250 HP V8 Verado | 4.6L | 2B529482 and Later |
| 250 HP V8 APX | 4.6L | 1E054548 and Later |
| 250R HP V8 Racing | 4.6L | 1E080500 and Later |
| 300 HP V8 Pro XS | 4.6L | 2B529482 and Later |
| 300 HP V8 SeaPro | 4.6L | 2B529482 and Later |
| 300 HP V8 Verado | 4.6L | 2B529482 and Later |
| 300 HP V8 CMS | 4.6L | 2B529482 and Later |
| 300 HP V8 AMS SeaPro | 4.6L | 2B529482 and Later |
| 300R HP V8 Racing | 4.6L | 1E080500 and Later |
| 300R HP V8 AMS Racing | 4.6L | 1E081459 and Later |
| 300 ROS HP V8 – 15-Inch Midsection Racing | 4.6L | 1E054618 and Later |
| 300 HP V8 APX | 4.6L | 1E054548 and Later |
| 350 HP V8 AMS SeaPro | 4.6L | 2B529482 and Later |
| 360 HP V8 APX | 4.6L | 1E054247 and Later |
Mercury Racing 4.6L V8 – 450R and 500R
| Engine Application | Displacement | Serial Range |
|---|---|---|
| 450R HP V8 Racing | 4.6L | 1E083006 through 1E099720 |
| 500R HP V8 Racing | 4.6L | 1E099432 and Later |
Mercury 5.7L V10 – 350–425 HP
The supplied fitment records also include selected Mercury 5.7L V10 Verado, SeaPro, and Racing engines.
| Engine Application | Serial Range |
|---|---|
| 350 HP V10 Verado | 3B266064 through 3B576448; 3B576449 and Later |
| 350 HP V10 Verado SeaPro | 3B266064 and Later |
| 400 HP V10 Verado | 3B266064 and Later |
| 400R HP V10 Racing | 3B272954 and Later |
| 425 HP V10 Verado | 3B576447 and Later |
The applications above were compiled from Mercury parts-catalog listings for adapter plates, adapter plate and driveshaft housing assemblies, cylinder blocks, oil systems, and related powerhead gasket sections. Individual engine serial ranges and assembly configurations must be confirmed using the applicable Mercury OEM parts diagram.
Common Symptoms and Replacement Reasons
Adapter plate gasket replacement may be required when the powerhead or adapter plate assembly is removed, or when an inspection identifies a sealing problem at the mating surfaces.
- Visible leakage near the adapter plate assembly
- Damaged or deteriorated gasket material
- Gasket replacement during powerhead removal
- Adapter plate disassembly for engine repairs
- Evidence of leakage at the gasket sealing interface
- Replacement of a gasket disturbed during service
Similar symptoms can have several causes. Inspect the applicable engine assembly and confirm the source of the problem before replacing parts.
Installation and Service Tips
- Confirm the correct gasket using the engine serial number.
- Follow the Mercury service manual for the exact engine model.
- Remove the old gasket material without damaging mating surfaces.
- Inspect the adapter plate and adjoining components for damage or distortion.
- Clean mating surfaces as specified in the service manual.
- Check gasket orientation before assembling the components.
- Use the correct Mercury fastener sequence and torque specifications.
- Apply sealants only where specifically required by Mercury.
- Inspect the assembly for leakage after service.
Improper gasket installation or incorrect adapter plate assembly can cause leakage or engine damage. Always follow the appropriate Mercury service procedures and specifications.
Key Features and Benefits
- Genuine Mercury OEM: Factory replacement gasket for specified Mercury outboards.
- OEM Part Number: 8M0205773.
- Cross Reference: 8M0142274.
- Multiple Engine Platforms: Listed for selected 3.4L V6, 4.6L V8, and 5.7L V10 applications.
- 150–500 HP Coverage: Supports a range of model-specific Mercury outboard applications.
- Performance Models: Includes specified Mercury Racing, Verado, Pro XS, and SeaPro configurations.
- Service Replacement: Intended for use when servicing compatible adapter plate assemblies.
- Dealer Pricing: Wholesale purchasing options available to qualified Pro Marine USA dealers.
Frequently Asked Questions
What is Mercury 8M0205773?
Mercury 8M0205773 is a genuine OEM adapter plate gasket used on select Mercury V6, V8, and V10 outboard engines.
Does 8M0205773 cross reference Mercury 8M0142274?
Yes. Mercury 8M0142274 is a supplied OEM cross-reference for 8M0205773. Confirm the correct application by engine serial number.
Does this gasket fit Mercury V8 Verado engines?
The supplied applications include select Mercury 250 and 300 HP 4.6L V8 Verado models beginning at serial number 2B529482.
Will this gasket fit Mercury V10 Verado engines?
The supplied Mercury records include specified 350, 400, and 425 HP 5.7L V10 Verado applications. Verify the exact serial range before ordering.
Does Mercury 8M0205773 fit Pro XS engines?
The supplied fitment includes select 175 HP 3.4L V6 Pro XS and 200, 225, 250, and 300 HP 4.6L V8 Pro XS applications.
Does this gasket fit Mercury SeaPro outboards?
Yes, the supplied application records include specified V6, V8, and V10 SeaPro configurations. Fitment varies by engine family and serial number.
Is this gasket used on Mercury Racing engines?
The supplied records include selected 200R, 250R, 300R, 400R, 450R, and 500R Racing applications, along with specified APX and 15-inch midsection configurations.
Is this a genuine Mercury part?
Yes. Part number 8M0205773 is listed as a Genuine Mercury OEM adapter plate gasket.
Should the gasket be replaced when removing the powerhead?
Gaskets disturbed during disassembly should be evaluated and replaced according to Mercury's service procedures. Follow the service manual for the specific engine.
How do I verify that 8M0205773 fits my engine?
Locate the complete engine serial number and consult the corresponding Mercury OEM parts diagram. Confirm that the adapter plate assembly specifies 8M0205773 or its applicable cross-reference.
Dealer Discounts & Store Policies
Wholesale Marine Parts Pricing
Pro Marine USA supplies genuine OEM and aftermarket marine engine parts to professional marine technicians, repair shops, dealerships, and retail customers.
Qualified marine businesses can apply for a Pro Marine dealer account to access wholesale pricing on eligible marine parts.
Shipping Information
- Free shipping on orders over $100 within the continental United States.
- In-stock orders received before 5:30 PM EST ship the same business day, Monday–Friday.
- Shipping available through UPS, USPS, and FedEx.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Eligible returns are accepted within 30 days.
- Parts must be new, unused, and in original packaging.
- Installed parts are not returnable.
- Return authorization is required before returning merchandise.
Need help confirming gasket fitment? Contact Pro Marine USA or call 941-721-3000.
Searchable Part Numbers
8M0205773, 8M0142274
Searchable Terms
Mercury 8M0205773 adapter plate gasket, Mercury 8M0142274 gasket, Genuine Mercury adapter plate gasket, Mercury OEM adapter gasket, Mercury V6 adapter plate gasket, Mercury 3.4L V6 gasket, Mercury V8 adapter plate gasket, Mercury 4.6L V8 gasket, Mercury V10 adapter plate gasket, Mercury 5.7L V10 gasket, Mercury Verado adapter plate gasket, Mercury Pro XS adapter plate gasket, Mercury SeaPro adapter plate gasket, Mercury Racing adapter plate gasket, Mercury 150 HP gasket, Mercury 175 HP gasket, Mercury 200 HP gasket, Mercury 225 HP gasket, Mercury 250 HP gasket, Mercury 300 HP gasket, Mercury 350 HP gasket, Mercury 360 HP gasket, Mercury 400 HP gasket, Mercury 425 HP gasket, Mercury 450R gasket, Mercury 500R gasket, Mercury adapter plate seal, Mercury powerhead adapter gasket, Mercury outboard midsection gasket
8M0205773
835083
OEM Mercury 300-Hour Service Kit Without Oil
Mercury 8M0149931 Service Kit for 4.6L V8 CMS SeaPro & ProXS Outboards
The Mercury 8M0149931 300-Hour Service Kit is an OEM maintenance kit for Mercury 4.6L V8 CMS (Conventional Mid Section) SeaPro and ProXS 4-stroke outboards.
This kit includes the major 300-hour service replacement items in one box, including the oil filter, fuel filter, oil drain seal, spark plugs, thermostat, alternator belt, water pump repair kit, and anodes. Engine oil and gear lube are sold separately.
Compatible Applications
| Engine Family | Horsepower / Type | Midsection | Application Notes |
|---|---|---|---|
| Mercury SeaPro | 4.6L V8 FourStroke | CMS / Conventional Mid Section | Fits compatible Mercury V8 CMS SeaPro outboards |
| Mercury ProXS | 4.6L V8 FourStroke | CMS / Conventional Mid Section | Fits compatible Mercury V8 CMS ProXS outboards |
CMS stands for Conventional Mid Section. Always verify your engine model, serial number, and owner’s manual before ordering service kits or maintenance parts.
What is Included
- OEM Mercury oil filter
- OEM Mercury fuel filter
- Oil drain seal
- Spark plugs
- Thermostat
- Alternator belt
- Water pump repair kit
- Anodes
What is Not Included
- Engine oil is sold separately
- Gear lube is sold separately
OEM Part Numbers & Cross References
| Brand / Type | Part Number |
|---|---|
| Mercury OEM | 8M0149931 |
| Related Kit With 10W30 Oil | 8M0149931-L |
| Application | 300-Hour V8 CMS Service Kit Without Oil |
Want the Kit With 10W30 Oil?
Some customers prefer the convenience of ordering the 300-hour kit with Mercury 10W30 engine oil included.
If you want the complete kit with 10W30 oil, see:
Related Anode Kit
This V8 CMS application uses the Mercury CMS aluminum anode kit. If you are replacing anodes separately or want a complete corrosion protection kit, see:
Mercury 8M0205953 Aluminum Anode Kit for CMS V6 / V8 Outboards
Choose Your Engine Oil & Gear Lube
This service kit does not include oil or gear lube, allowing customers to choose their preferred Mercury oil option.
Most applications use either 1 gallon plus 3 quarts or 7 individual quarts of engine oil, plus 1 quart of Mercury gear lube. Always verify fluid capacity in your owner’s manual.
| Oil Type | Size | Part Number | Link |
|---|---|---|---|
| Mercury FC-W 10W30 | 1 Quart | 858045K01 | View Product |
| Mercury FC-W 10W30 | 1 Gallon | 8M0078626 | View Product |
| Mercury 10W30 Synthetic Blend | 1 Quart | 8M0142141 | View Product |
| Mercury 10W30 Synthetic Blend | 1 Gallon | 8M0142151 | View Product |
| Mercury 25W40 | 1 Quart | 858048K01 | View Product |
| Mercury 25W40 Synthetic Blend | 1 Quart | 858055K01 | View Product |
| Mercury 25W40 Synthetic Blend | 1 Gallon | 8M0078630 | View Product |
| Mercury High Performance Gear Lube | 1 Quart | 858064K01 | View Product |
What This Service Kit is Used For
This Mercury 300-hour service kit is used for scheduled maintenance on compatible V8 CMS SeaPro and ProXS 4-stroke outboards.
Periodic maintenance helps protect your investment, support reliable operation, and keep your engine running longer and stronger.
Mercury packages the required 300-hour service replacement items together so customers do not have to order each part separately.
Key Features and Benefits
- Genuine OEM Mercury 300-hour maintenance kit
- Fits Mercury 4.6L V8 CMS SeaPro and ProXS 4-stroke outboards
- Includes oil filter, fuel filter, and oil drain seal
- Includes spark plugs, thermostat, and alternator belt
- Includes water pump repair kit and anodes
- Engine oil and gear lube sold separately
- Convenient all-in-one maintenance parts package
- Produced to Mercury OEM specifications
Service Kit Details
- Brand: Mercury / Quicksilver
- Part Number: 8M0149931
- Part Type: 300-Hour Service Kit Without Oil
- Application: Mercury 4.6L V8 CMS SeaPro and ProXS FourStroke Outboards
- Midsection: CMS / Conventional Mid Section
- Includes Oil: No
- Includes Gear Lube: No
- Quantity Sold: Kit
FAQ
What engines does Mercury 8M0149931 fit?
This kit fits Mercury 4.6L V8 CMS SeaPro and ProXS 4-stroke outboards.
Does this kit include engine oil?
No. This version does not include engine oil.
Does this kit include gear lube?
No. Gear lube is sold separately.
What parts are included in this 300-hour kit?
The kit includes an oil filter, fuel filter, oil drain seal, spark plugs,
thermostat, alternator belt, water pump repair kit, and anodes.
Is there a version with oil included?
Yes. Mercury 8M0149931-L includes the same 300-hour service kit with
10W30 engine oil.
Which anode kit goes with this engine?
This CMS application uses Mercury aluminum anode kit 8M0205953.
Is this an OEM Mercury kit?
Yes. This is a genuine Mercury / Quicksilver service kit produced to
Mercury OEM specifications.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Service kits should be verified for correct fitment before installation.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
8M0149931, Mercury 300 hour service kit, Mercury V8 CMS service kit, Mercury 4.6L V8 service kit, Mercury SeaPro 300 hour kit, Mercury ProXS 300 hour kit, Mercury CMS maintenance kit, Mercury oil filter fuel filter kit, Mercury spark plug service kit, Mercury water pump repair kit, Mercury thermostat service kit, Mercury alternator belt kit, Mercury anode service kit, 8M0149931-L, 8M0205953, 858045K01, 8M0078626, 8M0142141, 8M0142151, 858048K01, 858055K01, 8M0078630, 858064K01
OEM Mercury 300-Hour V6 Service Kit Without Oil
Mercury 8M0149930 Service Kit for 3.4L V6 FourStroke Outboards
The Mercury 8M0149930 300-Hour Service Kit is designed for Mercury 3.4L V6 FourStroke outboards.
This OEM Mercury maintenance package includes the major 300-hour service replacement components in one convenient box including the oil filter, fuel filter, oil drain seal, spark plugs, thermostat, alternator belt, anodes, and water pump repair kit. Engine oil and gear lube are sold separately.
Compatible Applications
| Engine Family | Engine Size | Engine Type | Application Notes |
|---|---|---|---|
| Mercury FourStroke | 3.4L V6 | FourStroke Outboards | Fits compatible Mercury 3.4L V6 FourStroke outboards |
Always verify your exact engine model and serial number before ordering maintenance kits or replacement service parts.
What is Included
- OEM Mercury oil filter
- OEM Mercury fuel filter
- Oil drain seal
- Spark plugs
- Thermostat
- Alternator belt
- Anodes
- Water pump repair kit
What is Not Included
- Engine oil is sold separately
- Gear lube is sold separately
OEM Part Numbers & Cross References
| Brand / Type | Part Number |
|---|---|
| Mercury OEM | 8M0149930 |
| Related Kit With Oil | 8M0149930-L |
| Application | 300-Hour V6 Service Kit Without Oil |
Want the Kit With Oil & Gear Lube?
Some customers prefer the convenience of receiving the complete 300-hour service kit with Mercury 10W30 engine oil and gear lube included.
If you want the complete version with oil and gear lube, see:
Related Anode Kit
Mercury 3.4L V6 FourStroke outboards use the Mercury aluminum anode kit shown below.
For replacement aluminum anodes, see:
Mercury 8M0205955 Aluminum Anode Kit
Choose Your Engine Oil & Gear Lube
This service kit does not include engine oil or gear lube, allowing customers to choose their preferred Mercury oil option.
Most applications use either 1 gallon plus 3 quarts or 7 individual quarts of engine oil, plus 1 quart of Mercury gear lube. Always verify fluid capacity in your owner’s manual.
| Oil Type | Size | Part Number | Link |
|---|---|---|---|
| Mercury FC-W 10W30 | 1 Quart | 858045K01 | View Product |
| Mercury FC-W 10W30 | 1 Gallon | 8M0078626 | View Product |
| Mercury 10W30 Synthetic Blend | 1 Quart | 8M0142141 | View Product |
| Mercury 10W30 Synthetic Blend | 1 Gallon | 8M0142151 | View Product |
| Mercury 25W40 | 1 Quart | 858048K01 | View Product |
| Mercury 25W40 Synthetic Blend | 1 Quart | 858055K01 | View Product |
| Mercury 25W40 Synthetic Blend | 1 Gallon | 8M0078630 | View Product |
| Mercury High Performance Gear Lube | 1 Quart | 858064K01 | View Product |
What This Service Kit is Used For
This Mercury 300-hour maintenance kit is designed for scheduled service on compatible Mercury 3.4L V6 FourStroke outboards.
Regular maintenance helps support long-term reliability, cooling system performance, fuel system operation, and corrosion protection.
Mercury packages the required 300-hour service components together to simplify maintenance and reduce the need to source parts individually.
Key Features and Benefits
- Genuine OEM Mercury 300-hour maintenance kit
- Fits Mercury 3.4L V6 FourStroke outboards
- Includes oil filter, fuel filter, and oil drain seal
- Includes spark plugs, thermostat, alternator belt, and water pump repair kit
- Includes aluminum anodes
- Engine oil and gear lube sold separately
- Convenient all-in-one maintenance package
- Produced to Mercury OEM specifications
Service Kit Details
- Brand: Mercury / Quicksilver
- Part Number: 8M0149930
- Part Type: 300-Hour Service Kit Without Oil
- Application: Mercury 3.4L V6 FourStroke Outboards
- Includes Oil: No
- Includes Gear Lube: No
- Quantity Sold: Kit
FAQ
What engines does Mercury 8M0149930 fit?
This kit fits Mercury 3.4L V6 FourStroke outboards.
Does this kit include engine oil?
No. This version does not include engine oil.
Does this kit include gear lube?
No. Gear lube is sold separately.
What parts are included in this 300-hour service kit?
The kit includes an oil filter, fuel filter, oil drain seal,
spark plugs, thermostat, alternator belt, water pump repair kit,
and anodes.
Which anode kit goes with this engine?
This application uses Mercury aluminum anode kit 8M0205955.
Is there a version with oil and gear lube included?
Yes. Mercury 8M0149930-L includes the same 300-hour maintenance parts
with Mercury 10W30 engine oil and gear lube.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Service kits should be verified for correct fitment before installation.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
8M0149930, Mercury V6 300 hour service kit, Mercury 3.4L V6 maintenance kit, Mercury FourStroke maintenance kit, Mercury spark plug service kit, Mercury thermostat service kit, Mercury water pump repair kit, Mercury alternator belt kit, Mercury anode service kit, Mercury oil filter fuel filter kit, Mercury 10W30 oil, Mercury gear lube, 8M0149930-L, 8M0205955
8M0168208
OEM Mercury 300-Hour Verado Service Kit Without Oil
Mercury 8M0149932 Service Kit for 4.6L V8 Verado & Verado SeaPro Outboards
The Mercury 8M0149932 300-Hour Service Kit is designed for Mercury 4.6L V8 Verado and Verado SeaPro outboards using the AMS (Advanced MidSection).
This OEM Mercury maintenance package includes the major 300-hour replacement components in one convenient box including the oil filter, fuel filter, oil drain seal, spark plugs, thermostat, alternator belt, anodes, and water pump repair kit. Engine oil and gear lube are sold separately.
Compatible Applications
| Engine Family | Engine Size | Midsection | Application Notes |
|---|---|---|---|
| Mercury Verado | 4.6L V8 FourStroke | AMS / Advanced MidSection | Fits compatible Mercury Verado AMS outboards |
| Mercury Verado SeaPro | 4.6L V8 FourStroke | AMS / Advanced MidSection | Fits compatible Mercury Verado SeaPro AMS outboards |
AMS stands for Advanced MidSection. Always verify your exact engine model and serial number before ordering.
What is Included
- OEM Mercury oil filter
- OEM Mercury fuel filter
- Oil drain seal
- Spark plugs
- Thermostat
- Alternator belt
- Anodes
- Water pump repair kit
What is Not Included
- Engine oil is sold separately
- Gear lube is sold separately
OEM Part Numbers & Cross References
| Brand / Type | Part Number |
|---|---|
| Mercury OEM | 8M0149932 |
| Related Kit With Oil | 8M0149932-L |
| Application | 300-Hour Verado AMS Service Kit Without Oil |
Want the Kit With Oil & Gear Lube?
Some customers prefer the convenience of receiving the complete 300-hour service kit with Mercury 10W30 engine oil and gear lube included.
If you want the complete version with oil and gear lube, see:
Mercury 8M0149932-L 300-Hour Verado AMS Service Kit With Oil
Related AMS Anode Kit
Mercury Verado AMS and Verado SeaPro AMS outboards use a different anode configuration than CMS models.
For replacement AMS aluminum anodes, see:
Mercury 8M0205955 Aluminum Anode Kit
Choose Your Engine Oil & Gear Lube
This service kit does not include engine oil or gear lube, allowing customers to choose their preferred Mercury oil option.
Most applications use either 1 gallon plus 3 quarts or 7 individual quarts of engine oil, plus 1 quart of Mercury gear lube. Always verify fluid capacity in your owner’s manual.
| Oil Type | Size | Part Number | Link |
|---|---|---|---|
| Mercury FC-W 10W30 | 1 Quart | 858045K01 | View Product |
| Mercury FC-W 10W30 | 1 Gallon | 8M0078626 | View Product |
| Mercury 10W30 Synthetic Blend | 1 Quart | 8M0142141 | View Product |
| Mercury 10W30 Synthetic Blend | 1 Gallon | 8M0142151 | View Product |
| Mercury 25W40 | 1 Quart | 858048K01 | View Product |
| Mercury 25W40 Synthetic Blend | 1 Quart | 858055K01 | View Product |
| Mercury 25W40 Synthetic Blend | 1 Gallon | 8M0078630 | View Product |
| Mercury High Performance Gear Lube | 1 Quart | 858064K01 | View Product |
What This Service Kit is Used For
This Mercury 300-hour maintenance kit is designed for scheduled service on compatible Mercury Verado and Verado SeaPro AMS outboards.
Regular maintenance helps support long-term reliability, proper cooling, fuel system performance, and corrosion protection.
Mercury packages the required 300-hour service components together to simplify maintenance and reduce the need to source parts individually.
Key Features and Benefits
- Genuine OEM Mercury 300-hour maintenance kit
- Fits Mercury 4.6L V8 Verado and Verado SeaPro AMS outboards
- Includes oil filter, fuel filter, and oil drain seal
- Includes spark plugs, thermostat, alternator belt, and water pump repair kit
- Includes AMS anodes
- Engine oil and gear lube sold separately
- Convenient all-in-one maintenance package
- Produced to Mercury OEM specifications
Service Kit Details
- Brand: Mercury / Quicksilver
- Part Number: 8M0149932
- Part Type: 300-Hour Service Kit Without Oil
- Application: Mercury 4.6L V8 Verado & Verado SeaPro AMS Outboards
- Midsection: AMS / Advanced MidSection
- Includes Oil: No
- Includes Gear Lube: No
- Quantity Sold: Kit
FAQ
What engines does Mercury 8M0149932 fit?
This kit fits Mercury 4.6L V8 Verado and Verado SeaPro AMS outboards.
Does this kit include engine oil?
No. This version does not include engine oil.
Does this kit include gear lube?
No. Gear lube is sold separately.
What parts are included in this 300-hour service kit?
The kit includes an oil filter, fuel filter, oil drain seal,
spark plugs, thermostat, alternator belt, water pump repair kit,
and AMS anodes.
What is AMS?
AMS stands for Advanced MidSection and is used on Mercury Verado
and certain Mercury Racing applications.
Which anode kit goes with this engine?
This AMS application uses Mercury aluminum anode kit 8M0205955.
Is there a version with oil and gear lube included?
Yes. Mercury 8M0149932-L includes the same 300-hour maintenance parts
with Mercury 10W30 engine oil and gear lube.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Service kits should be verified for correct fitment before installation.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
8M0149932, Mercury Verado 300 hour service kit, Mercury AMS service kit, Mercury Verado SeaPro service kit, Mercury 4.6L V8 maintenance kit, Mercury Verado maintenance kit, Mercury AMS maintenance kit, Mercury spark plug service kit, Mercury thermostat service kit, Mercury water pump repair kit, Mercury alternator belt kit, Mercury anode service kit, Mercury 10W30 oil, Mercury gear lube, 8M0149932-L, 8M0205955
48045
54870
73813
73813A1
73813F1
8M0058164
861678A1
97401
97401A2
97401A8
Mercury Shock Rod Kit 8M0168235
The Mercury 8M0168235 Shock Rod Kit is an OEM replacement kit used in the power trim system on select Mercury outboards. This updated kit is designed for newer trim assemblies and helps maintain smooth, controlled engine movement during trim operation.
Fitment Overview
This shock rod kit fits select Mercury 105HP Jet, 135HP, and 150HP FourStroke outboards using the newer power trim assembly design for serial numbers 2B752836 and up. If your engine falls in the earlier serial range, Mercury used a different shock rod assembly.
Compatibility
| Engine Model | Horsepower | Serial Range |
|---|---|---|
| Mercury Jet | 105 HP | 2B752836 and Up |
| Mercury FourStroke | 135 HP | 2B752836 and Up |
| Mercury FourStroke | 150 HP | 2B752836 and Up |
| Mercury FourStroke | 150 HP Pro XS | 3B020121 and Up |
Fits These Serial Ranges
Confirmed application: Mercury 105HP Jet, 135HP, and 150HP models using the updated power trim assembly design for serial numbers 2B752836 and newer.
Important: This kit is for engines after the serial break. If your engine is
serial number 2B752836 and below, order the earlier shock rod assembly instead:
Mercury Shock Rod Assembly 8M0060145 for 2B752836 and Below
Part Numbers and Cross References
| Type | Part Number |
|---|---|
| Mercury OEM | 8M0168235 |
| Application | Shock Rod Kit |
| System | Power Trim Assembly |
What This Part Is Used For
This shock rod kit is used inside the power trim assembly to support smooth engine movement and proper trim operation. It helps control internal motion within the trim system and reduces stress on surrounding trim components.
- Used in Mercury power trim assemblies
- Supports smooth trim and tilt operation
- Helps control internal movement of trim components
- Designed for the updated trim assembly version
If you are servicing the trim system on a compatible Mercury outboard, this kit helps restore proper function and reliable trim performance.
System Function and Connections
- System Type: Hydraulic power trim
- Location: Inside the power trim assembly
- Related Components: Trim pump, pistons, cylinders, and bracket components
FAQ
What does Mercury 8M0168235 fit?
It fits Mercury 105HP Jet, 135HP, and 150HP outboards using the newer power trim assembly for serial numbers 2B752836 and up.
How do I know if I need this kit or the earlier version?
Check your engine serial number. If your engine is 2B752836 and up, this is the correct kit. If it is 2B752836 and below, you need the earlier 8M0060145 shock rod assembly.
Is this part used in the steering system?
No. This is a power trim assembly component.
Why does the serial number break matter?
Mercury updated the trim assembly design, so different shock rod parts are used before and after the 2B752836 serial break.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 (continental U.S.).
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1–5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Items must be new, unused, and in original packaging.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Part Numbers
8M0168235, Mercury shock rod kit, Mercury 105HP Jet shock rod kit, Mercury 135HP shock rod kit, Mercury 150HP shock rod kit, Mercury trim assembly 2B752836 and up, 150hp ProXS 3C020121 and Up