Water Pump Impeller Kit – Fits Yamaha 60–90 HP 2-Stroke Outboards (Replaces 692-W0078-02-00)

Water Pump Impeller Kit – Fits Yamaha 60–90 HP 2-Stroke Outboards (Replaces 692-W0078-02-00)

This water pump impeller repair kit is designed for a wide range of Yamaha 2-stroke outboard motors, including 60 HP, 70 HP, 75 HP, 85 HP, and 90 HP models manufactured between 1984 and 2009. It provides all necessary components for a complete overhaul of your water pump assembly to restore cooling performance.

This kit serves as a direct replacement for multiple Yamaha and aftermarket part numbers, ensuring broad compatibility for the specified engine models. Please verify your part number or engine model and year before ordering.

• Installation Method: Direct replacement for OEM parts.
• Materials: Features a durable stainless steel pump cup and a high-performance neoprene rubber impeller for longevity.
• Complete Kit: Includes impeller, pump cup, wear plate, gasket, o-ring, and all necessary hardware for a full service.

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

• 1 x Impeller
• 1 x Pump Cup
• 1 x Wear Plate
• 1 x Gasket
• 1 x O-ring
• 1 x Woodruff Key
• 4 x Bolts with Washers

Installation Guide

1. Safety First: Disconnect the negative battery cable before beginning work.
2. Access the Pump: Remove the lower unit (gearcase) from the outboard's midsection.
3. Disassemble Housing: Carefully unbolt and remove the water pump housing cover, noting the position of all parts.
4. Remove Old Components: Take out the old impeller, wear plate, pump cup, and any gaskets or seals. Note the rotational direction of the old impeller fins.
5. Clean Surfaces: Thoroughly clean all mating surfaces, removing any old gasket material or corrosion.
6. Install New Gasket & Plate: Place the new wear plate and gasket into position on the gearcase.
7. Install Impeller: Apply a light coat of marine grease to the new pump cup, and install it. Slide the new Woodruff key onto the driveshaft and install the new impeller, turning the driveshaft clockwise to bend the fins correctly as you slide the housing down over it.
8. Reassemble Housing: Secure the water pump housing with the new bolts and washers, tightening them to the manufacturer's recommended torque specifications.
9. Reinstall Lower Unit: Reattach the lower unit to the outboard motor.
10. Test Operation: Reconnect the battery. Start the engine in a suitable water source and immediately check for a steady stream of water from the tell-tale port.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my Yamaha engine?
A: Check your engine's model, HP, and year against our "Compatible Engine Models" table. For the most accurate fitment, cross-reference your existing part number with our "Part Number Cross-Reference" table to ensure an exact match.

Q: What are the signs of a failing water pump impeller?
A: Common signs include a weak or non-existent water stream from the tell-tale (pilot) port, engine overheating alarms, steam from the exhaust, or a noticeable drop in water pressure on a gauge.

Q: How often should the water pump impeller be replaced?
A: As a critical preventative maintenance item, we recommend replacing the impeller every 1-2 years or every 100-200 hours of use. Frequency should be increased if operating in sandy/silty water or saltwater.

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. Improper installation can lead to engine damage.

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.