Water Pump Repair Kit – Fits Yamaha FT8/FT9.9 4-Stroke Outboards (Replaces 69G-W0078-00-00)

Water Pump Repair Kit – Fits Yamaha FT8/FT9.9 4-Stroke Outboards (Replaces 69G-W0078-00-00)

This water pump repair kit is designed for Yamaha 8-9.9 HP 4-stroke high thrust (FT) outboard engines manufactured from 2001 to the present. It provides a complete solution for servicing the water pump assembly to maintain engine cooling performance.

This kit is a direct replacement for Yamaha OEM part numbers: 69G-W0078-00-00 and 69G-W0078-02-00.

• Includes all necessary components for a full service: impeller, gaskets, plate, and hardware.
• Engineered for direct replacement of the original OEM water pump components.
• Restores cooling system efficiency to prevent engine overheating.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers for this water pump repair 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 kit includes the following components:

• 1 x Cartridge Insert (63V-44322-00-00)
• 1 x Water Seal Damper 2 (68T-44366-00-00)
• 1 x Impeller (63V-44352-01-00)
• 1 x Woodruff Key (664-44338-00-00)
• 1 x O-Ring (93210-44704-00 / 93210-44398)
• 1 x Cartridge Outer Plate (68T-44323-00-00)
• 4 x Bolt (97095-08045-00 / 97080-08045)

Installation Guide

1. Safety First: Disconnect the engine's battery and shift the outboard into neutral.
2. Lower Unit Removal: Remove the bolts securing the lower unit (gearcase) to the engine's midsection and carefully lower it.
3. Access the Pump: Unscrew the bolts on the water pump housing and lift the housing off.
4. Component Replacement: Remove the old impeller, gaskets, wear plate, and seals. Note their orientation before removal.
5. Clean Surfaces: Thoroughly clean the mating surfaces of the housing and gearcase, removing any old gasket material or debris.
6. Install New Parts: Install the new components from the kit in reverse order. Lightly grease the new impeller and insert it while turning the driveshaft clockwise to bend the vanes correctly.
7. Reassemble: Reinstall the water pump housing, ensuring the gaskets are aligned. Tighten the bolts to the manufacturer's specified torque.
8. Final Steps: Reattach the lower unit to the engine. Reconnect the battery and test run the engine in water, confirming a steady stream from the tell-tale port.

Troubleshooting & FAQ

Q: How do I confirm this fits my engine?

A: First, check the Compatible Engine Models table in this listing. Verify your engine's brand, model, horsepower, and year range. This kit is a direct replacement for OEM part numbers 69G-W0078-00-00 and 69G-W0078-02-00. Comparing images to your existing part can also help confirm fitment.

Q: How often should I replace the water pump kit?

A: For optimal performance and engine safety, it is recommended to inspect the impeller annually and replace the entire water pump repair kit every 1-2 years or 100-200 hours of use. This interval may be shorter if you frequently operate in sandy, silty, or saltwater environments.

Q: What are the symptoms of a failing water pump?

A: The most common signs include the engine overheating alarm activating, a weak or non-existent water stream from the "tell-tale" outlet port, or steam coming from the exhaust. Upon inspection, a worn impeller may appear cracked, brittle, or have broken vanes.

Q: OEM vs. 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.