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Mercury 75-115HP EFI 4 Stroke 300 Hour Kit | Pro Marine USA

Shop Mercury 75HP-115HP EFI 4 stroke 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 75HP-115HP EFI engines may use different maintenance components depending on model year and serial number range.

Common Mercury 75HP-115HP 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 75-115HP 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.

Do Mercury 75-115HP 300 hour kits include oil and gear lube?

Some kits include engine oil and lower unit gear lube, while others contain only maintenance parts. Review the product listing for exact kit contents.

How do I choose the correct Mercury 75-115HP EFI service kit?

Use your Mercury model and serial number to confirm the correct maintenance kit for your engine application.

Helpful Links

View:
OEM 8M0097857 Kit Engine Oil & Gear Lube Sold Separately

OEM Mercury 75-115HP 1.7L 300 Hour Service Kit

Mercury 75-115HP 1.7L FourStroke 300 Hour Kit - Serial 1B366823-2B094995

The Mercury 8M0097857 300 hour service kit is designed for Mercury 75HP, 90HP, and 115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.

This OEM Mercury maintenance kit includes the major components commonly replaced during scheduled 300 hour maintenance intervals. This version does not include engine oil or gear lube.

Compatible Applications

Brand Horsepower Engine Type Serial Range
Mercury 75HP, 90HP, 115HP 1.7L FourStroke Outboard 1B366823-2B094995
Important Fitment Note:

This 300 hour service kit is for Mercury 75HP, 90HP, and 115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.

Always verify your engine serial number before ordering maintenance parts.

What is Included

Included Component Application
Oil Filter Engine oil filtration service
Fuel Filter Fuel system maintenance
Gearcase Drain Seals Gearcase lubricant service
Spark Plugs (4) Ignition system maintenance
Thermostat Kit Cooling system maintenance
Water Pump Impeller Kit Water pump service
Alternator Belt Charging system maintenance
Anodes Corrosion protection

Oil Capacity & Recommended Oil Options

Engine Oil Quantity:

These Mercury 75-115HP 1.7L engines use approximately 6 quarts of engine oil, or 1 gallon plus 2 quarts.

This kit does not include engine oil.
Oil Type Product Quantity Required
Mercury 10W30 Mercury 10W30 Engine Oil - Quart 6 quarts
Mercury 10W30 Mercury 10W30 Engine Oil - Gallon 1 gallon + 2 quarts
Mercury 10W30 Synthetic Blend Mercury 10W30 Synthetic Blend - Quart 6 quarts
Mercury 10W30 Synthetic Blend Mercury 10W30 Synthetic Blend - Gallon 1 gallon + 2 quarts
Mercury 10W30 Full Synthetic Mercury 10W30 Full Synthetic - Gallon 1 gallon + 2 quarts
Mercury 25W40 Mercury 25W40 Engine Oil - Quart 6 quarts
Mercury 25W40 Synthetic Blend Mercury 25W40 Synthetic Blend - Quart 6 quarts
Mercury 25W40 Synthetic Blend Mercury 25W40 Synthetic Blend - Gallon 1 gallon + 2 quarts

Gear Lube Recommendations

Gear Lube Quantity:

This service requires approximately 1 quart of gear lube.

This kit does not include gear lube.
Gear Lube Type Product Quantity Required
Mercury Premium Gear Lube 80W90 Mercury Premium Gear Lube - Quart 1 quart
Mercury High Performance Gear Lube Mercury High Performance Gear Lube - Quart 1 quart

Want the Complete Kit With Oil & Gear Lube?

300 Hour Kit With 10W30 Oil & Gear Lube

The complete Mercury 8M0097857-L service kit includes 10W30 engine oil and gear lube along with the major 300 hour maintenance components.

View Kit With Oil & Gear Lube

What This Service Kit is Used For

The Mercury 8M0097857 service kit is used for major 300 hour maintenance on compatible Mercury 75-115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.

This maintenance interval commonly includes ignition system maintenance, cooling system service, water pump service, fuel filtration, corrosion protection, and gearcase service.

Key Features and Benefits

  • OEM Mercury 300 hour service kit
  • Fits Mercury 75HP, 90HP, and 115HP 1.7L FourStroke outboards
  • For serial numbers 1B366823 through 2B094995
  • Includes spark plugs, thermostat kit, impeller kit, alternator belt, and anodes
  • Includes all parts Mercury recommends for scheduled 300 hour service
  • Produced to Mercury Marine OEM specifications
  • Does not include oil or gear lube
  • Allows customers to choose preferred Mercury oil options separately

Service Kit Details

  • Part Number: 8M0097857
  • Application: Mercury 75-115HP 1.7L FourStroke Outboards
  • Serial Range: 1B366823-2B094995
  • Service Interval: 300 Hour Maintenance
  • Oil Included: No
  • Gear Lube Included: No
  • Oil Capacity: Approximately 6 quarts, or 1 gallon plus 2 quarts
  • Gear Lube Quantity: Approximately 1 quart

FAQ

What engines does this service kit fit?
This kit fits Mercury 75HP, 90HP, and 115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.

Does this kit include engine oil?
No. Engine oil is sold separately.

Does this kit include gear lube?
No. Gear lube is sold separately.

What maintenance items are included?
This kit includes an oil filter, fuel filter, gearcase drain seals, spark plugs, thermostat kit, water impeller kit, alternator belt, and anodes.

How much oil does the engine use?
Approximately 6 quarts, or 1 gallon plus 2 quarts.

Is there a version with oil and gear lube included?
Yes. The Mercury 8M0097857-L kit with 10W30 oil and gear lube is linked above.

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.

Apply for a Dealer Account

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

8M0097857, Mercury 75HP 300 hour service kit, Mercury 90HP 300 hour service kit, Mercury 115HP 300 hour service kit, Mercury 1.7L FourStroke maintenance kit, Mercury serial 1B366823, Mercury serial 2B094995, Mercury spark plug kit, Mercury thermostat kit, Mercury impeller kit, Mercury alternator belt, Mercury anodes, Mercury 10W30 oil, Mercury 25W40 oil, Mercury Premium Gear Lube, Mercury High Performance Gear Lube, 8M0097857-L

Item#:
8M0097857
Manufacturer Item:
8M0097857
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
425.99
Each
Mercury 75-115hp EFI 2.1L
Item#:
8M0097855
Cross Reference#:
8M0097855
Manufacturer Item:
8M0097855
Manufacturer:
Mercury Marine
Available:
In Stock
Your Price:
341.99
Each
Mercury 75-115hp EFI 2.1L
Item#:
8M0097855-L
Cross Reference#:
8M0097855
Manufacturer Item:
8M0097855
Manufacturer:
Mercury Marine
Available:
In Stock
451.9500
Your Price:
438.39
Each
OEM 8M0097857-L Kit With Oil & Gear Lube

OEM Mercury 75-115HP 1.7L 300 Hour Service Kit With Oil & Gear Lube

Mercury 75-115HP 1.7L FourStroke 300 Hour Kit - Serial 1B366823-2B094995

The Mercury 8M0097857-L 300 hour service kit is designed for Mercury 75HP, 90HP, and 115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.

This OEM Mercury maintenance kit includes the major components commonly replaced during scheduled 300 hour maintenance intervals along with Mercury 10W30 engine oil and Mercury gear lube.

Compatible Applications

Brand Horsepower Engine Type Serial Range
Mercury 75HP, 90HP, 115HP 1.7L FourStroke Outboard 1B366823-2B094995
Important Fitment Note:

This 300 hour service kit is for Mercury 75HP, 90HP, and 115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.

Always verify your engine serial number before ordering maintenance parts.

What is Included

Included Component Application
Oil Filter Engine oil filtration service
Fuel Filter Fuel system maintenance
Gearcase Drain Seals Gearcase lubricant service
Spark Plugs (4) Ignition system maintenance
Thermostat Kit Cooling system maintenance
Water Pump Impeller Kit Water pump service
Alternator Belt Charging system maintenance
Anodes Corrosion protection
Mercury 10W30 Engine Oil 1 gallon plus 2 quarts included
Mercury Gear Lube Gearcase lubricant included

Oil & Gear Lube Included

This kit includes engine oil and gear lube.

Engine oil included: Mercury 10W30 engine oil - 1 gallon plus 2 quarts.

Gear lube included: Mercury gear lube for gearcase service.

Want to Use a Different Oil?

300 Hour Kit Without Oil & Gear Lube

Some customers prefer using a different oil viscosity, synthetic blend, full synthetic oil, or already have oil and gear lube available. The standard Mercury 8M0097857 300 hour service kit without oil or gear lube is available separately.

View Kit Without Oil

What This Service Kit is Used For

The Mercury 8M0097857-L service kit is used for major 300 hour maintenance on compatible Mercury 75-115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.

This maintenance interval commonly includes ignition system maintenance, cooling system service, water pump service, fuel filtration, corrosion protection, engine oil service, and gearcase lubricant replacement.

Key Features and Benefits

  • OEM Mercury 300 hour service kit
  • Fits Mercury 75HP, 90HP, and 115HP 1.7L FourStroke outboards
  • For serial numbers 1B366823 through 2B094995
  • Includes spark plugs, thermostat kit, impeller kit, alternator belt, and anodes
  • Includes all parts Mercury recommends for scheduled 300 hour service
  • Includes Mercury 10W30 engine oil
  • Includes Mercury gear lube
  • Convenient all-in-one maintenance package

Service Kit Details

  • Part Number: 8M0097857-L
  • Base Mercury Kit Number: 8M0097857
  • Application: Mercury 75-115HP 1.7L FourStroke Outboards
  • Serial Range: 1B366823-2B094995
  • Service Interval: 300 Hour Maintenance
  • Oil Included: Yes - Mercury 10W30
  • Oil Quantity Included: 1 gallon plus 2 quarts
  • Gear Lube Included: Yes

FAQ

What engines does this service kit fit?
This kit fits Mercury 75HP, 90HP, and 115HP 1.7L FourStroke outboards with serial numbers 1B366823 through 2B094995.

Does this kit include engine oil?
Yes. This version includes Mercury 10W30 engine oil.

How much oil is included?
This kit includes 1 gallon plus 2 quarts of Mercury 10W30 engine oil.

Does this kit include gear lube?
Yes. Mercury gear lube is included for the gearcase service.

Is there a version without oil and gear lube?
Yes. The Mercury 8M0097857 service kit without oil and gear lube is linked above.

What maintenance items are included?
This kit includes an oil filter, fuel filter, gearcase drain seals, spark plugs, thermostat kit, water pump impeller kit, alternator belt, anodes, 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.

Apply for a Dealer Account

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

8M0097857-L, 8M0097857, Mercury 75HP 300 hour service kit, Mercury 90HP 300 hour service kit, Mercury 115HP 300 hour service kit, Mercury 1.7L FourStroke maintenance kit, Mercury serial 1B366823, Mercury serial 2B094995, Mercury spark plug kit, Mercury thermostat kit, Mercury impeller kit, Mercury alternator belt, Mercury anodes, Mercury 10W30 oil, Mercury gear lube, Mercury Premium Gear Lube, Mercury High Performance Gear Lube

Item#:
8M0097857-L
Manufacturer Item:
8M0097857
Manufacturer:
Mercury Marine
Available:
In Stock
535.9500
Your Price:
519.87
Each
View: