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Mercury 40-60HP EFI 300 Hour Kit | Pro Marine USA
Shop Mercury 40HP-60HP EFI 300 hour service kits for major scheduled outboard maintenance. These kits help simplify service intervals by combining many of the common maintenance parts required for Mercury EFI 4 stroke engines.
Always verify your Mercury model and serial number before ordering service parts.
Tip: Mercury 40HP-60HP EFI engines may use different maintenance components depending on model year and serial number range.
Common Mercury 40HP-60HP EFI 300 Hour Kit Items
- Oil filters and fuel filters
- Spark plugs
- Thermostats and seals
- Water pump service components
- Engine oil when included
- Gear lube when included
Frequently Asked Questions
What is included in a Mercury 40-60HP EFI 300 hour service kit?
Most kits include common scheduled maintenance items such as filters, spark plugs, thermostats, water pump components, seals, and related service parts. Some kits also include engine oil and gear lube.
How is a 300 hour service different from a 100 hour service?
A 300 hour service is typically more comprehensive and may include cooling system, ignition, and water pump maintenance components in addition to routine filter and fluid service items.
How do I choose the correct Mercury 40-60HP EFI service kit?
Use your Mercury model and serial number to confirm the correct maintenance kit for your engine.
Helpful Links
OEM Mercury 40-60HP 300 Hour Service Kit With Oil
Mercury 40-60HP 300 Hour Kit Standard Gearcase
The Mercury 8M0113483-L 300 Hour Service Kit is a complete maintenance package for Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards with serial numbers 1C000001 and higher equipped with standard gearcases.
This 300 hour maintenance kit includes the required service components along with Mercury 10W30 engine oil and gear lube for scheduled maintenance service.
Compatible Applications
| Brand | Horsepower | Engine Type | Gearcase Type | Serial Range |
|---|---|---|---|---|
| Mercury | 40HP | FourStroke EFI Outboard | Standard Gearcase | 1C000001 & Higher |
| Mercury | 50HP | FourStroke EFI Outboard | Standard Gearcase | 1C000001 & Higher |
| Mercury | 60HP | FourStroke EFI Outboard | Standard Gearcase | 1C000001 & Higher |
This Mercury 300 hour service kit fits Mercury 40-60HP FourStroke EFI outboards with serial numbers 1C000001 and higher equipped with standard gearcases only.
If your engine has a BigFoot or Command Thrust gearcase, use the BigFoot / Command Thrust kits linked below instead.
What is Included
| Included Component | Application |
|---|---|
| Oil Filter | Engine oil filtration service |
| Fuel Filters | Fuel system maintenance |
| Spark Plugs | Ignition system maintenance |
| Water Pump Components | Cooling system service |
| Thermostat Components | Cooling system maintenance |
| Drain & Vent Seals | Gearcase service |
| Mercury 10W30 Engine Oil | Engine oil service |
| Mercury Gear Lube | Gearcase lubricant service |
Prefer to Choose a Different Oil?
Some customers prefer to purchase a different Mercury oil, including Mercury 25W40, Synthetic Blend, or Full Synthetic options.
If you prefer to choose your own engine oil and gear lube, order the standard 300 hour kit below.
Order 8M0113483 - Oil and Gear Lube Sold SeparatelyIncluded Oil & Gear Lube Information
This kit includes Mercury 10W30 engine oil and gear lube for the complete 300 hour maintenance service.
Mercury 40-60HP FourStroke EFI engines use approximately 4 quarts of engine oil, or 1 gallon.
Standard gearcase applications use approximately 1 quart of gear lube.
BigFoot / Command Thrust 300 Hour Kits
What This Service Kit is Used For
The Mercury 8M0113483-L service kit is used for 300 hour maintenance on compatible Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards equipped with standard gearcases.
A 300 hour maintenance service is more extensive than a standard 100 hour service and commonly includes fuel system maintenance, cooling system service, spark plug replacement, water pump service, oil service, and gearcase maintenance.
Key Features and Benefits
- OEM Mercury 300 hour service kit
- Fits Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards
- Fits serial numbers 1C000001 and higher
- For standard gearcase models only
- Includes Mercury 10W30 engine oil
- Includes gear lube for gearcase service
- Alternative kit available for customers preferring different oils
- BigFoot / Command Thrust kits linked above
Service Kit Details
- Part Number: 8M0113483-L
- Base Kit: 8M0113483
- Application: Mercury 40-60HP FourStroke EFI Outboards
- Serial Range: 1C000001 & Higher
- Gearcase Type: Standard Gearcase
- Service Interval: 300 Hour Maintenance
- Oil Included: Mercury 10W30
- Gear Lube Included: Yes
FAQ
What engines does this kit fit?
This kit fits Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards
with serial numbers 1C000001 and higher equipped with standard gearcases.
Does this fit BigFoot or Command Thrust gearcases?
No. BigFoot and Command Thrust kits are linked above.
Does this kit include oil and gear lube?
Yes. This kit includes Mercury 10W30 engine oil and gear lube.
What if I prefer a different oil?
Customers who prefer different Mercury oil options can order
the standard 8M0113483 kit and select their preferred oil separately.
How much engine oil does this motor use?
Approximately 4 quarts or 1 gallon.
How much gear lube is required?
Approximately 1 quart for standard gearcase models.
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.
- Maintenance kits must be new, unused, and in original packaging.
- Opened oil and lubricants may not be returnable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
8M0113483-L, 8M0113483, 8M0090559, 8M0090559-L, Mercury 40HP 300 hour kit with oil, Mercury 50HP 300 hour kit with oil, Mercury 60HP 300 hour kit with oil, Mercury standard gearcase 300 hour kit, Mercury standard gearcase maintenance kit, Mercury 300 hour kit with 10W30, Mercury serial 1C000001 300 hour kit, Mercury FourStroke EFI 300 hour service, Mercury BigFoot 300 hour kit, Mercury Command Thrust 300 hour kit, Mercury 40-60HP maintenance kit with oil
OEM Mercury 40-60HP 300 Hour Service Kit
Mercury 40-60HP 300 Hour Kit Standard Gearcase
The Mercury 8M0113483 300 Hour Service Kit is designed for compatible Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards with serial numbers 1C000001 and higher equipped with standard gearcases.
This 300 hour maintenance kit includes the routine service components commonly replaced during scheduled maintenance. Oil and gear lube are sold separately.
Compatible Applications
| Brand | Horsepower | Engine Type | Gearcase Type | Serial Range |
|---|---|---|---|---|
| Mercury | 40HP | FourStroke EFI Outboard | Standard Gearcase | 1C000001 & Higher |
| Mercury | 50HP | FourStroke EFI Outboard | Standard Gearcase | 1C000001 & Higher |
| Mercury | 60HP | FourStroke EFI Outboard | Standard Gearcase | 1C000001 & Higher |
This Mercury 300 hour service kit fits Mercury 40-60HP FourStroke EFI outboards with serial numbers 1C000001 and higher equipped with standard gearcases only.
If your engine has a BigFoot or Command Thrust gearcase, use the BigFoot / Command Thrust kits linked below instead.
What is Included
| Included Component | Application |
|---|---|
| Oil Filter | Engine oil filtration service |
| Fuel Filters | Fuel system maintenance |
| Spark Plugs | Ignition system maintenance |
| Water Pump Components | Cooling system service |
| Thermostat Components | Cooling system maintenance |
| Drain & Vent Seals | Gearcase service |
Prefer to Buy the Kit with 10W30 Oil & Gear Lube?
Mercury 300 Hour Kit With 10W30 Oil & Gear Lube
Prefer a complete maintenance package? Order the Mercury 8M0113483-L 300 Hour Service Kit with Mercury 10W30 engine oil and gear lube included.
View Complete KitOil Capacity & Recommended Oil Options
Mercury 40-60HP FourStroke EFI engines use approximately 4 quarts of engine oil, or 1 gallon.
| Oil Type | Product | Quantity Required |
|---|---|---|
| Mercury 10W30 | Mercury 10W30 Engine Oil - Quart | 4 quarts |
| Mercury 10W30 | Mercury 10W30 Engine Oil - Gallon | 1 gallon |
| Mercury 10W30 Synthetic Blend | Mercury 10W30 Synthetic Blend - Quart | 4 quarts |
| Mercury 10W30 Synthetic Blend | Mercury 10W30 Synthetic Blend - Gallon | 1 gallon |
| Mercury 10W30 Full Synthetic | Mercury 10W30 Full Synthetic - Gallon | 1 gallon |
| Mercury 25W40 | Mercury 25W40 Engine Oil - Quart | 4 quarts |
| Mercury 25W40 Synthetic Blend | Mercury 25W40 Synthetic Blend - Quart | 4 quarts |
| Mercury 25W40 Synthetic Blend | Mercury 25W40 Synthetic Blend - Gallon | 1 gallon |
Recommended Gear Lube
Gear Lube Quantity:
Standard gearcase applications use approximately
1 quart of gear lube.
| Gear Lube Type | Product |
|---|---|
| Mercury Premium Gear Lube 80W90 | Mercury Premium Gear Lube 80W90 - Quart |
| Mercury High Performance Gear Lube | Mercury High Performance Gear Lube - Quart |
BigFoot / Command Thrust 300 Hour Kits
What This Service Kit is Used For
The Mercury 8M0113483 service kit is used for 300 hour maintenance on compatible Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards equipped with standard gearcases.
A 300 hour service includes more extensive maintenance than a basic 100 hour service and helps support fuel system performance, cooling system reliability, ignition performance, lubrication service, and long-term outboard protection.
Key Features and Benefits
- OEM Mercury 300 hour service kit
- Fits Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards
- Fits serial numbers 1C000001 and higher
- For standard gearcase models only
- Oil and gear lube sold separately
- Kit with 10W30 oil and gear lube available separately
- BigFoot / Command Thrust kits linked above
Service Kit Details
- Part Number: 8M0113483
- Application: Mercury 40-60HP FourStroke EFI Outboards
- Serial Range: 1C000001 & Higher
- Gearcase Type: Standard Gearcase
- Service Interval: 300 Hour Maintenance
- Oil and Gear Lube: Sold Separately
FAQ
What engines does this kit fit?
This kit fits Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards
with serial numbers 1C000001 and higher equipped with standard gearcases.
Does this fit BigFoot or Command Thrust gearcases?
No. BigFoot and Command Thrust kits are linked above.
Does this kit include oil and gear lube?
Oil and gear lube are sold separately.
Is there a version with 10W30 oil and gear lube included?
Yes. The Mercury 8M0113483-L kit with 10W30 oil and gear lube
is linked above.
How much engine oil does this motor use?
Approximately 4 quarts or 1 gallon.
How much gear lube is required?
Approximately 1 quart for standard gearcase models.
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.
- Maintenance kits must be new, unused, and in original packaging.
- Opened oil and lubricants may not be returnable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
8M0113483, 8M0113483-L, 8M0090559, 8M0090559-L, Mercury 40HP 300 hour kit, Mercury 50HP 300 hour kit, Mercury 60HP 300 hour kit, Mercury standard gearcase 300 hour kit, Mercury 40-60HP standard gearcase maintenance, Mercury serial 1C000001 300 hour kit, Mercury 300 hour kit oil and gear lube sold separately, Mercury 300 hour kit with 10W30, Mercury BigFoot 300 hour kit, Mercury Command Thrust 300 hour kit, Mercury FourStroke EFI 300 hour service
OEM Mercury 40-60HP 300 Hour Service Kit With Oil
Mercury 40-60HP 300 Hour Kit BigFoot / Command Thrust
The Mercury 8M0090559-L 300 Hour Service Kit is a complete maintenance package for Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards with serial numbers 1C000001 and higher equipped with BigFoot or Command Thrust gearcases.
This 300 hour maintenance kit includes the required service components along with engine oil and gear lube for routine scheduled maintenance.
Compatible Applications
| Brand | Horsepower | Engine Type | Gearcase Type | Serial Range |
|---|---|---|---|---|
| Mercury | 40HP | FourStroke EFI Outboard | BigFoot / Command Thrust | 1C000001 & Higher |
| Mercury | 50HP | FourStroke EFI Outboard | BigFoot / Command Thrust | 1C000001 & Higher |
| Mercury | 60HP | FourStroke EFI Outboard | BigFoot / Command Thrust | 1C000001 & Higher |
This Mercury 300 hour service kit fits Mercury 40-60HP FourStroke EFI outboards with serial numbers 1C000001 and higher equipped with BigFoot or Command Thrust gearcases only.
If your engine has a standard gearcase, use the standard gearcase 300 hour kits linked below instead.
What is Included
| Included Component | Application |
|---|---|
| Oil Filter | Engine oil filtration service |
| Fuel Filters | Fuel system maintenance |
| Spark Plugs | Ignition system maintenance |
| Water Pump Components | Cooling system service |
| Thermostat Components | Cooling system maintenance |
| Mercury Engine Oil | Engine oil service |
| Mercury Gear Lube | Gearcase lubricant service |
Prefer to Choose a Different Oil?
Some customers prefer to purchase their own Mercury oil separately, including Mercury 25W40, Synthetic Blend, or Full Synthetic options.
If you prefer to select your own engine oil and gear lube, order the standard 300 hour kit below.
Order 8M0090559 - Oil and Gear Lube Sold SeparatelyIncluded Oil & Gear Lube Information
This kit includes Mercury engine oil and gear lube for the complete 300 hour maintenance service.
Mercury 40-60HP FourStroke EFI engines use approximately 4 quarts of engine oil, or 1 gallon.
BigFoot and Command Thrust gearcases may require different gear lube fill amounts than standard gearcases. Always verify fill quantity in your Mercury owner's manual.
Standard Gearcase 300 Hour Kits
What This Service Kit is Used For
The Mercury 8M0090559-L service kit is used for 300 hour maintenance on compatible Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards equipped with BigFoot or Command Thrust gearcases.
A 300 hour maintenance service is more extensive than a standard 100 hour service and commonly includes fuel system maintenance, cooling system service, spark plug replacement, water pump service, oil service, and gearcase maintenance.
Key Features and Benefits
- OEM Mercury 300 hour service kit
- Fits Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards
- Fits serial numbers 1C000001 and higher
- For BigFoot and Command Thrust gearcase models
- Includes engine oil and gear lube
- Complete maintenance package for scheduled service
- Alternative kit available for customers preferring different oils
- Standard gearcase kits linked above
Service Kit Details
- Part Number: 8M0090559-L
- Base Kit: 8M0090559
- Application: Mercury 40-60HP FourStroke EFI Outboards
- Serial Range: 1C000001 & Higher
- Gearcase Type: BigFoot / Command Thrust
- Service Interval: 300 Hour Maintenance
- Oil Included: Yes
- Gear Lube Included: Yes
FAQ
What engines does this kit fit?
This kit fits Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards
with serial numbers 1C000001 and higher equipped with BigFoot
or Command Thrust gearcases.
Does this fit standard gearcase models?
No. This kit is for BigFoot and Command Thrust gearcases only.
Standard gearcase kits are linked above.
Does this kit include oil and gear lube?
Yes. This kit includes Mercury engine oil and gear lube.
What if I prefer a different oil?
Customers who prefer different Mercury oil options can order
the standard 8M0090559 kit and select their preferred oil separately.
How do I know if I have a BigFoot or Command Thrust gearcase?
Verify your gearcase type using your Mercury model information
or owner's manual before ordering.
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.
- Maintenance kits must be new, unused, and in original packaging.
- Opened oil and lubricants may not be returnable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
8M0090559-L, 8M0090559, 8M0113483, 8M0113483-L, Mercury 40HP 300 hour kit with oil, Mercury 50HP 300 hour kit with oil, Mercury 60HP 300 hour kit with oil, Mercury BigFoot 300 hour service kit, Mercury Command Thrust 300 hour kit, Mercury 40-60HP BigFoot maintenance kit, Mercury 40-60HP Command Thrust maintenance kit, Mercury serial 1C000001 300 hour service, Mercury standard gearcase 300 hour kit, Mercury 300 hour kit with oil and gear lube, Mercury FourStroke EFI 300 hour service
OEM Mercury 40-60HP 300 Hour Service Kit
Mercury 40-60HP 300 Hour Kit BigFoot / Command Thrust
The Mercury 8M0090559 300 Hour Service Kit is for compatible Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards with serial numbers 1C000001 and higher equipped with BigFoot or Command Thrust gearcases.
This 300 hour maintenance kit includes the service components commonly replaced during extended scheduled maintenance. Oil and gear lube are sold separately.
Compatible Applications
| Brand | Horsepower | Engine Type | Gearcase Type | Serial Range |
|---|---|---|---|---|
| Mercury | 40HP | FourStroke EFI Outboard | BigFoot / Command Thrust | 1C000001 & Higher |
| Mercury | 50HP | FourStroke EFI Outboard | BigFoot / Command Thrust | 1C000001 & Higher |
| Mercury | 60HP | FourStroke EFI Outboard | BigFoot / Command Thrust | 1C000001 & Higher |
This Mercury 300 hour service kit fits Mercury 40-60HP FourStroke EFI outboards with serial numbers 1C000001 and higher and BigFoot or Command Thrust gearcases only.
If your motor has a standard gearcase, use the standard gearcase 300 hour kit linked below instead.
Prefer to Buy the Kit with Oil & Gear Lube?
Mercury 300 Hour Kit With Oil & Gear Lube - BigFoot / Command Thrust
Prefer a complete maintenance package? Order the Mercury 8M0090559-L 300 Hour Service Kit with engine oil and gear lube included.
View Complete KitOil Capacity & Recommended Oil Options
Mercury 40-60HP FourStroke EFI engines use approximately 4 quarts of engine oil, or 1 gallon.
| Oil Type | Product | Quantity Required |
|---|---|---|
| Mercury 10W30 | Mercury 10W30 Engine Oil - Quart | 4 quarts |
| Mercury 10W30 | Mercury 10W30 Engine Oil - Gallon | 1 gallon |
| Mercury 10W30 Synthetic Blend | Mercury 10W30 Synthetic Blend - Quart | 4 quarts |
| Mercury 10W30 Synthetic Blend | Mercury 10W30 Synthetic Blend - Gallon | 1 gallon |
| Mercury 10W30 Full Synthetic | Mercury 10W30 Full Synthetic - Gallon | 1 gallon |
| Mercury 25W40 | Mercury 25W40 Engine Oil - Quart | 4 quarts |
| Mercury 25W40 Synthetic Blend | Mercury 25W40 Synthetic Blend - Quart | 4 quarts |
| Mercury 25W40 Synthetic Blend | Mercury 25W40 Synthetic Blend - Gallon | 1 gallon |
Recommended Gear Lube
Gear Lube Quantity:
BigFoot and Command Thrust gearcases may require more gear lube than standard gearcases.
Always verify the fill quantity in your Mercury owner's manual before servicing.
| Gear Lube Type | Product |
|---|---|
| Mercury High Performance Gear Lube | Mercury High Performance Gear Lube - Quart |
| Mercury Premium Gear Lube 80W90 | Mercury Premium Gear Lube 80W90 - Quart |
Standard Gearcase 300 Hour Kits
What This Service Kit is Used For
The Mercury 8M0090559 service kit is used for 300 hour maintenance on compatible Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards with serial numbers 1C000001 and higher equipped with BigFoot or Command Thrust gearcases.
A 300 hour service is a more complete maintenance interval than a basic 100 hour service and helps support fuel system performance, cooling system reliability, ignition performance, lubrication service, and long-term outboard protection.
Key Features and Benefits
- OEM Mercury 300 hour service kit
- Fits Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards
- For serial numbers 1C000001 and higher
- For BigFoot and Command Thrust gearcase models
- Oil and gear lube sold separately
- Kit with oil and gear lube available separately
- Standard gearcase 300 hour kits linked above
Service Kit Details
- Part Number: 8M0090559
- Application: Mercury 40-60HP FourStroke EFI Outboards
- Serial Range: 1C000001 & Higher
- Gearcase Type: BigFoot / Command Thrust
- Service Interval: 300 Hour Maintenance
- Oil and Gear Lube: Sold Separately
FAQ
What engines does this 300 hour kit fit?
This kit fits Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards
with serial numbers 1C000001 and higher equipped with BigFoot or
Command Thrust gearcases.
Does this kit fit standard gearcase models?
No. This kit is for BigFoot and Command Thrust gearcase models.
Standard gearcase 300 hour kits are linked above.
Does this kit include oil and gear lube?
Oil and gear lube are sold separately.
Is there a version with oil and gear lube included?
Yes. The Mercury 8M0090559-L kit with oil and gear lube is linked above.
How do I know which 300 hour kit to order?
Choose this kit for BigFoot or Command Thrust gearcases. Choose the
standard gearcase kit if your motor does not have a BigFoot or Command
Thrust gearcase.
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.
- Maintenance kits must be new, unused, and in original packaging.
- Opened oil and lubricants may not be returnable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
8M0090559, 8M0090559-L, 8M0113483, 8M0113483-L, Mercury 40HP 300 hour kit, Mercury 50HP 300 hour kit, Mercury 60HP 300 hour kit, Mercury 40-60HP 300 hour service kit, Mercury BigFoot 300 hour kit, Mercury Command Thrust 300 hour kit, Mercury 40-60HP BigFoot service kit, Mercury 40-60HP Command Thrust service kit, Mercury serial 1C000001 300 hour kit, Mercury 1C000001 and higher maintenance kit, Mercury standard gearcase 300 hour kit, Mercury 300 hour kit oil and gear lube sold separately