8M0207807 Service Kit for Mercury | JLM Marine

8M0207807 Service Kit for Mercury

This comprehensive service kit is engineered for Mercury outboard engines, providing essential maintenance components to keep your engine running at peak performance. Designed to meet OEM specifications, this kit simplifies routine servicing by bundling critical filters, gaskets, and tools in one convenient package.

Direct replacement for Mercury OEM part number 8M0207807, ensuring proper fit and reliable performance across compatible Mercury engine models.

• Complete service solution with oil filter, fuel filter, drain gaskets, and gear oil pump
• Simplifies maintenance by providing all key components in one kit
• Precision-engineered to OEM specifications for reliable performance

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here's a guide to help you identify your engine's serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Note: Compatibility data is not available in the provided information. Please verify fitment using the Mercury resources linked above or contact our support team with your engine's serial number for confirmation.

Technical Specifications

Package Contents

This service kit includes the following components for complete routine maintenance:

• 8M0205848 – Oil Filter x1
• 8M0157616 – Fuel Filter x1
• 830749.0 – Lower Unit Drain Gasket x2
• 24OP149 – Gear Oil Pump x1
• 830749 – Lower Unit Drain Gasket x2

Installation Guide

Follow these steps to perform a complete service using this kit:

1. Preparation: Ensure the engine is cool and positioned upright. Gather necessary tools including a wrench set, drain pan, and shop towels.
2. Oil Filter Replacement: Locate the oil filter on your Mercury engine and remove the old filter using an appropriate wrench. Clean the mounting surface thoroughly.
3. Install New Oil Filter: Apply a thin layer of clean oil to the new filter gasket, then hand-tighten the new 8M0205848 oil filter until snug. Do not over-tighten.
4. Fuel Filter Replacement: Disconnect fuel lines from the old fuel filter, noting the flow direction arrows. Install the new 8M0157616 fuel filter with correct flow orientation and secure all connections.
5. Lower Unit Service: Position a drain pan beneath the lower unit and remove the drain and vent plugs. Allow all old gear oil to drain completely.
6. Install Drain Gaskets: Remove old gaskets from drain and vent plug areas and clean surfaces thoroughly. Install new 830749 drain gaskets on both plugs.
7. Refill Gear Oil: Using the included 24OP149 gear oil pump, insert the pump nozzle into the lower drain hole. Pump fresh gear oil slowly until it begins to emerge from the upper vent hole.
8. Seal Lower Unit: While oil is still visible at the vent hole, install the vent plug with its new gasket first. Then immediately install the drain plug with its new gasket.
9. Final Inspection: Wipe down all service points and check for any leaks around the oil filter, fuel filter, and lower unit plugs. Tighten if necessary.
10. System Check: Start the engine and let it run briefly, then shut down and recheck all filter connections and lower unit plugs for leaks.
11. Disposal: Dispose of used oil, filters, and gaskets according to local environmental regulations. Never pour waste oil into drains or soil.
12. Record Service: Log the service date and engine hours in your maintenance records for future reference.

Troubleshooting & FAQ

Q: How do I confirm this service kit fits my specific Mercury engine?
A: Cross-reference your engine's model and serial number with Mercury's parts catalog or use the Mercury Serial Number Guide to identify compatible parts. If your engine currently uses OEM part number 8M0207807, this kit is a direct replacement.

Q: How often should I use this service kit for routine maintenance?
A: Mercury typically recommends changing oil and fuel filters every 100 hours of operation or annually, whichever comes first. Lower unit gear oil and gaskets should be serviced every 100 hours or seasonally, and always after submerged operation or impact to the lower unit.

Q: Can I mix the components from this kit with my existing service schedule?
A: Yes, you can use individual components as needed. However, for optimal engine health, we recommend performing a complete service using all included components simultaneously to ensure consistent maintenance intervals.

Q: What should I do if I notice metal particles in the drained lower unit oil?
A: Small amounts of metallic residue can be normal during initial break-in or after extended use. However, excessive metal shavings or chunks indicate potential gear damage and require immediate professional inspection before refilling and operating.

Q: Is this an OEM or aftermarket service kit?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.