8M0172447 Maintenance Kit for Mercury | JLM Marine

8M0172447 Maintenance Kit for Mercury

This comprehensive maintenance kit is designed for Mercury outboard engines, providing all the essential components needed for routine service. It includes a complete selection of filters, belts, gaskets, and tools to keep your engine running smoothly and reliably.

This kit directly replaces Mercury OEM part number 8M0172447, ensuring proper fit and function for your scheduled maintenance needs.

• Complete service kit with oil filter, fuel filter, drive belt, and lower unit gaskets
• Includes gear oil pump for easy lower unit fluid changes
• All components meet or exceed 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: Specific engine model compatibility data is not provided. Please verify fitment using your engine's serial number and the Mercury resources linked above, or contact us with your engine details for confirmation.

Technical Specifications

Package Contents

This maintenance kit includes the following components:

• Oil Filter – 8M0123025 View Part → × 1
• Fuel Filter – 8M0126144 × 1
• Drive Belt – 8M0159595 × 1
• Lower Unit Drain Gasket – 830749.0 × 2
• Lower Unit Drain Gasket – 830749 × 2
• Gear Oil Pump – 24OP149 × 1

Installation Guide

Follow these steps for proper maintenance service using this kit:

1. Preparation: Ensure the engine is off and cool. Gather necessary tools including wrenches, drain pan, and shop towels.
2. Oil Filter Replacement: Locate the oil filter on your engine. Remove the old filter using an oil filter wrench and install the new 8M0123025 filter, hand-tightening securely.
3. Fuel Filter Replacement: Disconnect fuel lines from the old fuel filter (have a rag ready for spillage). Install the new 8M0126144 filter, ensuring correct flow direction as marked on the filter body.
4. Drive Belt Replacement: Remove the engine cowling to access the belt. Release belt tension, remove the old belt, and install the new 8M0159595 belt following the correct routing path.
5. Lower Unit Service: Position the outboard vertically. Place a drain pan beneath the lower unit.
6. Drain Old Gear Oil: Remove both the drain (bottom) and vent (top) plugs, allowing old oil to drain completely. Inspect for metal particles or milky appearance (indicates water intrusion).
7. Install New Gaskets: Clean the drain and vent plug holes thoroughly. Install new 830749 gaskets on both drain and vent plugs.
8. Refill Gear Oil: Using the included 24OP149 gear oil pump, insert the pump nozzle into the bottom drain hole. Pump new gear oil until it begins to overflow from the top vent hole.
9. Seal Lower Unit: Quickly install the top vent plug with gasket first, then install the bottom drain plug with gasket. Tighten both plugs to manufacturer specifications.
10. Final Checks: Reinstall engine cowling. Check all filter connections for leaks.
11. Test Run: Start the engine and let it run for a few minutes. Monitor for any leaks or unusual operation.
12. Dispose Properly: Dispose of old oil, filters, and gaskets according to local environmental regulations.

Troubleshooting & FAQ

Q: How do I confirm this maintenance kit fits my Mercury engine?
A: Verify that your engine requires OEM part number 8M0172447 by checking your owner's manual or using the Mercury Serial Number Guide and Mercury Parts Catalog. You can also contact us with your engine's serial number for confirmation.

Q: How often should I perform maintenance using this kit?
A: Follow your Mercury engine's maintenance schedule as outlined in the owner's manual. Typically, oil and fuel filters should be replaced every 100 hours or annually, belts should be inspected regularly and replaced as needed, and lower unit gear oil should be changed every 100 hours or seasonally.

Q: What should I do if I notice metal particles in my drained lower unit oil?
A: Small amounts of fine metallic dust may be normal, especially on newer units. However, larger metal flakes or chunks indicate gear wear and require professional inspection before continuing operation to prevent catastrophic lower unit failure.

Q: Can I use any gear oil with the included pump, or is a specific type required?
A: Use only Mercury Premium or Hi-Performance gear lube as specified in your owner's manual. The 24OP149 pump is compatible with standard quart bottles of gear oil.

Q: What's the difference between OEM and aftermarket maintenance kits?
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.