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MerCruiser Shift Shaft Bushing Assembly 65529-1 (OEM)
The 65529-1 Shift Shaft Bushing Assembly is a genuine Mercury MerCruiser OEM component designed specifically for Alpha One Gen II sterndrives. This assembly supports and seals the shift shaft where it enters the drive housing, ensuring precise shifting and proper sealing.
Fitment Overview
This OEM part replaces and supersedes earlier Mercury / MerCruiser part numbers including 815921A2, 815921A6, 815921A8, 815921A10, 815921A17, and 815921A21.
All of these part numbers correspond to the same shift shaft bushing assembly used in Alpha One Gen II sterndrive applications.
Compatibility
| Brand | Drive Model | Application |
|---|---|---|
| MerCruiser | Alpha One Gen II | Sterndrive |
| MerCruiser | Alpha One Gen II (all gear ratios) | Sterndrive |
This component is used in Alpha One Gen II drives across a wide range of marine applications.
Fits These Serial Ranges
Common applications include Alpha One Gen II sterndrives beginning approximately at serial range:
- 0D469859 and newer Alpha One Gen II production
Important: Always confirm compatibility using your sterndrive serial number or OEM part number.
Looking for a cost-effective aftermarket alternative?
View Pro Marine Shift Shaft Bushing Assembly 65529
Part Numbers and Cross References
| Type | Part Number |
|---|---|
| Mercury / MerCruiser OEM | 65529-1 |
| Mercury / MerCruiser OEM | 815921A2 |
| Mercury / MerCruiser OEM | 815921A6 |
| Mercury / MerCruiser OEM | 815921A8 |
| Mercury / MerCruiser OEM | 815921A10 |
| Mercury / MerCruiser OEM | 815921A17 |
| Mercury / MerCruiser OEM | 815921A21 |
| Aftermarket | 65529 (Pro Marine) |
What This Part Is Used For
This shift shaft bushing assembly supports the shift shaft and seals the entry point into the sterndrive housing. It ensures proper alignment and prevents water from entering the drive.
- Maintains shift shaft alignment
- Provides sealing at the drive housing
- Ensures smooth gear engagement
- Helps protect internal drive components
Using a genuine OEM part ensures proper fit, sealing, and long-term durability.
System Function and Connections
- System Type: Sterndrive shifting system
- Component Type: Shift shaft bushing assembly
- Location: Alpha One Gen II drive housing
FAQ
Is this a genuine Mercury part?
Yes, this is an OEM Mercury MerCruiser component.
What does this part fit?
It fits MerCruiser Alpha One Gen II sterndrives.
Does this replace older part numbers?
Yes, it replaces 815921A2, A6, A8, A10, A17, and A21.
Why choose OEM?
OEM parts are manufactured to exact specifications for proper fit and long-term reliability.
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
65529-1, 815921A21, 815921A10, 815921A8, 815921A6, 815921A2, MerCruiser Alpha One Gen II shift shaft bushing
21015
815921A10
815921A17
815921A2
815921A21
815921A6
815921A8
9-76136
884323T01
884329T
807929A1
807929A2
815922A1
815922A5
821759A1
821759A2
821759A3
821759A4
Verado Gen B Adapter Fitting – Pump to Pressure Fitting
Designed for Mercury Verado Gen B power steering systems. The 8M0147795 Adapter Fitting connects the male power steering pump fitting to the male Verado pressure fitting. This Fitting is used within the hydraulic steering system to properly route fluid between key components.
Compatibility
This adapter Fitting is used on Mercury Verado Gen B outboards with hydraulic power steering systems. It is specifically designed for systems requiring a male-to-male connection between the pump and pressure-side steering components.
Application Chart
| Brand | Engine Family | System | Connection Type | Application |
|---|---|---|---|---|
| Mercury | Verado Gen B | Power Steering | Male to Male Adapter Hose | Pump to Pressure Fitting |
Only fits Gen B Verado steering systems. Always confirm compatibility using your engine serial number and hose configuration.
Part Numbers & Cross References
| Reference Type | Part Number |
|---|---|
| OEM Part | 8M0147795 |
What This Part Is Used For
This adapter Fitting is used to connect the power steering pump to the pressure-side fitting in Mercury Verado Gen B steering systems. It ensures proper hydraulic fluid routing and system pressure.
Because this Fitting connects two male fittings, it is a critical link in systems where standard hose connections are not compatible. Replacing worn or leaking hoses helps maintain consistent steering performance and prevents hydraulic fluid loss.
Related Steering Components
This adapter hose is part of a complete Mercury Verado Gen B steering system and is commonly used with the following components:
- Mercury Verado Gen B Power Steering Pump 8M0134736P – Provides hydraulic pressure for the steering system.
- Damper Hose Kit 897643A01 – Helps regulate hydraulic pressure and reduce steering feedback.
- Helm to Power Steering Pump Hose 8M0078213 – Connects the steering helm to the pump on the pressure side.
Frequently Asked Questions
What does this adapter Fitting connect?
It connects the Gen B power steering pump to the Verado pressure-side fitting on the helm using a male-to-male configuration.
Is this Gen B specific?
Yes. This Fitting is designed specifically for Mercury Verado Gen B steering systems.
Why is this adapter needed?
It allows proper connection between components with matching male fittings where a standard hose cannot be used.
When should this hose be replaced?
If there are signs of leaks, cracking, or reduced steering performance.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer or technician? We offer dealer pricing for qualified businesses.
Shipping Policy
- Free shipping on orders over $100 (continental U.S.)
- Ships via UPS, USPS, and FedEx
- 5:30 PM EST daily cutoff
- Typical delivery 1–5 business days
30-Day Return Policy
- Returns within 30 days
- Items must be unused and in original packaging
Contact Us
Phone: 941-721-3000
Searchable Part Numbers
Part Number: 8M0078213
Common Searches: Mercury Verado steering hose, helm to pump hose, power steering pressure hose, 16ft steering hose, Verado hydraulic hose
OEM Mercury 300-Hour Service Kit with Oil & Gear Lube
Mercury 8M0149931-L Service Kit for 4.6L V8 CMS SeaPro & ProXS Outboards
The Mercury 8M0149931-L 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 complete version includes the major 300-hour service replacement items, plus Mercury 10W30 engine oil and Mercury gear lube for a more complete maintenance package.
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
- Mercury 10W30 engine oil
- Mercury gear lube
OEM Part Numbers & Cross References
| Brand / Type | Part Number |
|---|---|
| Mercury OEM | 8M0149931-L |
| Related Kit Without Oil | 8M0149931 |
| Application | 300-Hour V8 CMS Service Kit with Oil & Gear Lube |
Prefer to Choose Your Own Oil?
This kit includes Mercury 10W30 engine oil and gear lube. Some customers prefer to choose a different Mercury oil viscosity or purchase fluids separately.
If you want the same 300-hour kit without oil and gear lube, 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
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
- Includes Mercury 10W30 engine oil and gear lube
- Convenient all-in-one maintenance package
- Produced to Mercury OEM specifications
Service Kit Details
- Brand: Mercury / Quicksilver
- Part Number: 8M0149931-L
- Part Type: 300-Hour Service Kit with Oil & Gear Lube
- Application: Mercury 4.6L V8 CMS SeaPro and ProXS FourStroke Outboards
- Midsection: CMS / Conventional Mid Section
- Includes Oil: Yes
- Includes Gear Lube: Yes
- Quantity Sold: Kit
FAQ
What engines does Mercury 8M0149931-L fit?
This kit fits Mercury 4.6L V8 CMS SeaPro and ProXS 4-stroke outboards.
Does this kit include engine oil?
Yes. This version includes Mercury 10W30 engine oil.
Does this kit include gear lube?
Yes. This version includes Mercury gear lube.
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, anodes, engine oil,
and gear lube.
Is there a version without oil?
Yes. Mercury 8M0149931 includes the same 300-hour service parts without
engine oil and gear lube.
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-L, Mercury 300 hour service kit with oil, Mercury V8 CMS service kit, Mercury 4.6L V8 service kit, Mercury SeaPro 300 hour kit with oil, Mercury ProXS 300 hour kit with oil, 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, Mercury 10W30 oil kit, Mercury gear lube kit, 8M0149931, 8M0205953