300 Hour Service Kit 10w30
Shipping information
Same-day shipping on orders placed before 11 AM Eastern Time.
Free shipping on orders of $199 and over.
Oils and fluids: an additional $10.99 shipping fee applies to each oil and fluid item.
30-day returns on eligible items
Unused, uninstalled items in original packaging. Special-order items: 20 days, 25% restocking fee.
Compatible Applications
| Brand | Horsepower | Engine Type | Application Notes |
|---|---|---|---|
| Mercury | 75HP–115HP | 2.1L EFI FourStroke | Select compatible models |
What is Included
| Qty | Included Part | Part Number |
|---|---|---|
| 1 | Mercury 300-Hour Maintenance Kit | 8M0097855 |
| — | — Oil Filter and Low-Pressure Fuel Filter | In 8M0097855 |
| 4 | — Spark Plugs | In 8M0097855 |
| — | — Thermostat with Gaskets, Water Pump Impeller Kit | In 8M0097855 |
| — | — Power Trim and Lower Unit Anodes, Drain Seals | In 8M0097855 |
| — | Mercury 10W-30 4-Stroke Engine Oil | Included |
What This Kit is Used For
This bundle pairs the genuine Mercury 8M0097855 300-hour maintenance kit with Mercury 10W-30 engine oil for the 300-hour service on Mercury 2.1L 75HP–115HP EFI FourStroke outboards.
The 300-hour service replaces wear items like the water pump impeller, thermostat, spark plugs, and anodes along with routine filters and oil.
Key Features and Benefits
- OEM Mercury 300-hour kit plus 10W-30 engine oil
- Fits Mercury 2.1L 75HP–115HP EFI FourStroke outboards
- Includes water pump impeller kit, thermostat, spark plugs, and anodes
- Parts and oil for the service in one order
Kit Details
- Kit Part Number: 8M0097855-L
- Base Kit: Mercury 8M0097855
- Service Interval: 300 hours
- Engine Compatibility: Mercury 2.1L 75–115HP EFI FourStroke
- Oil Weight: 10W-30
FAQ
What engines does this kit fit?
This kit fits Mercury 2.1L 75HP–115HP EFI FourStroke outboards.
What's the difference from 8M0097855?
This version adds Mercury 10W-30 engine oil to the standard 8M0097855 parts kit.
Can I perform this service myself?
Yes, with common shop tools. Always follow your owner's manual and verify oil capacity before operation.
Returns & warranty
Most standard items may be returned within 30 days of purchase if unused, uninstalled, complete, and in original packaging. Request a Return Authorization (RMA) before sending anything back. Shipping costs are non-refundable.
Special-order items may be returned within 20 days, subject to a 25% restocking fee.
Warranty claims follow the manufacturer's warranty policy. Contact us and we'll help with the process.