6L5-W006A-00 Water Pump Repair Kit for Yamaha 3HP | JLM Marine

Water Pump Repair Kit – Fits Yamaha 3HP Outboard (1988-2002)

This comprehensive water pump repair kit is designed for Yamaha 3HP outboard engines manufactured from 1988 to 2002. It provides all essential components needed to restore your engine's cooling system to peak performance, including impeller, thermostat, seals, gaskets, and anode.

This aftermarket kit directly replaces OEM part number 6L5-W006A-00, delivering reliable performance at a competitive price point. Ideal for routine maintenance or emergency repairs to prevent overheating and extend engine life.

• Complete 10-piece repair kit with all critical cooling system components
• Includes premium impeller, thermostat, water seal damper, and protective anode
• Direct replacement for Yamaha OEM specifications

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 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 complete repair kit includes 10 precision-engineered components:

• 6L5-44352-00 – Impeller × 1
• 93604-09068 – Pin, Dowel × 2
• 6E0-44366-00 – Damper Water Seal × 1
• 6E5-12411-01 – Thermostat × 1
• 6L5-12414-A1 – Gasket × 1
• 90430-08020 – Drain Gasket × 4
• 91490-25030-00 – Cotter Pin × 1
• 6L5-24251-00 – Strainer × 1
• 6L5-45251-02 – Anode × 1
• 24OP149 – Gear Oil Pump × 1

Installation Guide

1. Disconnect the fuel line and remove the engine cowling to access the lower unit and water pump assembly.
2. Drain the gear oil completely and remove the lower unit by loosening mounting bolts.
3. Disassemble the water pump housing and carefully remove the old impeller, noting its orientation.
4. Clean all mating surfaces thoroughly, removing old gasket material and debris from the pump housing and base.
5. Install the new damper water seal (6E0-44366-00) onto the driveshaft, ensuring proper seating.
6. Lubricate the new impeller with glycerin or soapy water and install it with blades oriented in the correct rotation direction.
7. Position the dowel pins (93604-09068) in their designated holes to align the pump housing correctly.
8. Install new gaskets (6L5-12414-A1 and drain gaskets 90430-08020) on all mating surfaces without using excessive sealant.
9. Replace the thermostat (6E5-12411-01) in its housing, ensuring the spring side faces the correct direction.
10. Install the strainer (6L5-24251-00) and anode (6L5-45251-02) in their respective locations.
11. Reassemble the lower unit to the engine, torquing all bolts to manufacturer specifications, and secure with the cotter pin (91490-25030-00).
12. Refill the gear oil using the oil pump (24OP149), run the engine in water, and inspect for proper cooling flow and leaks.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my Yamaha engine?
A: Cross-reference your current part number 6L5-W006A-00 with your engine's parts manual or verify your engine is a Yamaha 3HP model from 1988-2002. You can also use the Yamaha serial number guide linked above to identify your exact engine configuration.

Q: How often should I replace my water pump components?
A: Yamaha recommends inspecting the water pump annually and replacing the impeller every 2-3 years or 200-300 hours of operation, whichever comes first. If your engine has overheated or shown reduced cooling flow, replace the kit immediately regardless of hours.

Q: What are the signs my water pump is failing?
A: Common symptoms include weak or no water discharge from the telltale (pilot hole), engine overheating, reduced power output, steam from the engine, or an overheating alarm. If you notice any of these signs, inspect and replace the water pump components promptly.

Q: Why are there multiple gaskets included in this kit?
A: The kit includes four drain gaskets (90430-08020) because multiple seal points in the lower unit require fresh gaskets during reassembly. Always replace all gaskets to prevent leaks and ensure proper sealing of the cooling system.

Q: What is the purpose of the anode included in this kit?
A: The anode (6L5-45251-02) provides sacrificial corrosion protection for metal components in your lower unit. It corrodes preferentially to protect more expensive parts from electrolysis damage, especially in saltwater environments, and should be replaced when servicing the water pump.

Q: Is this an OEM part or aftermarket?
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.