6G1-W006A-00 Maintenance Kit for Yamaha 6HP 8HP | JLM Marine

6G1-W006A-00 Maintenance Kit for Yamaha 6HP 8HP | JLM Marine

This comprehensive maintenance kit is designed to fit Yamaha 6-8HP outboard engines manufactured between 1984 and 2016. It provides all the essential components needed for routine servicing, ensuring your engine continues to deliver reliable performance on the water.

This kit directly replaces OEM part number 6G1-W006A-00, offering a complete solution for scheduled maintenance intervals. It includes critical wear items such as the water pump impeller, thermostat, fuel filter, and gaskets—everything required to keep your cooling, fuel, and lubrication systems operating at peak efficiency.

• Complete maintenance solution with 12 individual components for comprehensive service
• Covers water pump, fuel system, thermostat, and lower unit maintenance needs
• Compatible with Yamaha 6-8HP outboards spanning over three decades of production

Part Number Cross-Reference

Use this table to confirm the OEM part number for this maintenance kit:

Compatible Engine Models

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

Technical Specifications

Package Contents

This maintenance kit includes 12 individual components to service multiple systems on your Yamaha outboard:

• 6G1-44352-00 Water Pump Impeller × 1
• 6G1-44323-00 Cartridge Outer Plate × 1
• 6G1-44328-00 Plate × 2
• 6G1-44322-00 Insert Cup × 1
• 6G1-44315-00 Gasket × 1
• 647-44366-00 Damper Water Seal × 1
• 97095-06045 Bolt × 4
• 646-24251-02 Fuel Filter × 1
• 6E5-12411-02 Thermostat × 1
• 90430-08020 Drain Gasket × 4
• 91490-30025 Cotter Pin × 1
• 24OP149 Gear Oil Pump × 1

Installation Guide

1. Prepare your workspace: Ensure the engine is off, cooled down, and tilted or positioned for easy access to the lower unit and powerhead.
2. Drain old gear oil: Remove the lower unit drain plug using the included drain gasket (90430-08020) and allow the old oil to fully evacuate.
3. Remove the water pump housing: Unbolt the pump housing to access the impeller and related components. Keep track of all fasteners.
4. Replace the water pump impeller: Remove the old impeller (6G1-44352-00) and install the new one, ensuring the blades are oriented correctly for rotation direction.
5. Install new seals and plates: Replace the cartridge outer plate (6G1-44323-00), plates (6G1-44328-00), insert cup (6G1-44322-00), gasket (6G1-44315-00), and damper water seal (647-44366-00) as required.
6. Reassemble the water pump housing: Secure the housing with the provided bolts (97095-06045), tightening to manufacturer specifications.
7. Replace the fuel filter: Locate the inline fuel filter and swap out the old unit with the new filter (646-24251-02), ensuring fuel line connections are secure.
8. Install the new thermostat: Access the thermostat housing, remove the old thermostat, and install the replacement (6E5-12411-02) with proper sealing.
9. Refill gear oil: Using the gear oil pump (24OP149), refill the lower unit through the drain hole until oil appears at the vent hole. Install the drain gasket and secure the plug.
10. Secure with cotter pin: Install the cotter pin (91490-30025) in the appropriate location as specified in your engine's service manual.
11. Inspect all connections: Double-check that all bolts, seals, and connections are tight and properly seated.
12. Test run the engine: Start the engine and check for proper water flow from the tell-tale, smooth operation, and no leaks from serviced areas.

Troubleshooting & FAQ

Q: How do I know if this maintenance kit fits my specific Yamaha engine?
A: This kit is designed for Yamaha 6-8HP outboards from 1984 to 2016. Verify your engine's model and serial number using the Yamaha identification guides linked above, and cross-reference the OEM part number 6G1-W006A-00 with your engine's parts diagram to ensure compatibility.

Q: How often should I replace these maintenance components?
A: Yamaha typically recommends water pump impeller replacement every 2-3 years or 200-300 hours of operation, whichever comes first. The fuel filter and thermostat should be inspected annually and replaced as needed. Gear oil and drain gaskets should be serviced at least once per season or every 100 hours.

Q: What are signs that my water pump impeller needs replacement?
A: Common symptoms include weak or no water flow from the tell-tale (indicator stream), engine overheating, steam from the engine, or reduced cooling efficiency. If you notice any of these signs, inspect and replace the impeller immediately to prevent serious engine damage.

Q: Can I install this maintenance kit myself, or do I need a marine mechanic?
A: If you have basic mechanical skills and the proper tools, you can perform this maintenance yourself following the service manual. However, if you're unfamiliar with outboard servicing or uncomfortable working with fuel and cooling systems, we recommend professional installation to ensure safety and proper function.

Q: Is this an OEM part or aftermarket replacement?
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.