Water Pump Impeller Repair Kit – Fits Yamaha 60-90 HP (Replaces 692-W0078-02-00, 18-3371)
Water Pump Impeller Repair Kit – Fits Yamaha 60-90 HP (Replaces 692-W0078-02-00, 18-3371) is backordered and will ship as soon as it is back in stock.
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Water Pump Impeller Repair Kit – Fits Yamaha 60-90 HP (Replaces 692...
Water Pump Impeller Repair Kit – Fits Yamaha 60-90 HP (Replaces 692-W0078-02-00, 18-3371) is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Impeller Repair Kit is designed for Yamaha 2-Stroke outboard engines from 60 to 90 HP, covering models from 1984 to 2009 including the C75, P75, E75, C80, C85, CV85, B90, and C90 series. It provides all necessary components for a complete overhaul of your engine's water pump unit to restore cooling performance.
It serves as a direct interchange for Yamaha part numbers 692-W0078-02-00, 692-W0078-00-00, 692-W0078-A0-00, and 692-W0078-01-00, as well as Sierra 18-3371 and 18-3370.
- Designed for direct OEM replacement installation.
- Features a durable metal housing and a neoprene impeller for longevity.
- Includes a complete set of gaskets, seals, and hardware for a full repair.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 692-W0078-02-00 |
| Yamaha | 692-W0078-01-00 |
| Yamaha | 692-W0078-A0-00 |
| Yamaha | 692-W0078-00-00 |
| Sierra | 18-3371 |
| Sierra | 18-3370 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | 60 | 60 | 2-Stroke | 2004–2005 | 692-W0078-02-00 | |
| Yamaha | 70 | 70 | 2-Stroke | 2004–2009 | 692-W0078-02-00 | |
| Yamaha | C75 | 75 | 2-Stroke | 1994–1999 | 692-W0078-02-00 | |
| Yamaha | P75 | 75 | 2-Stroke | 1996–1999 | 692-W0078-02-00 | |
| Yamaha | E75 | 75 | 2-Stroke | 1995–2000 | 692-W0078-02-00 | |
| Yamaha | 80 | 80 | 2-Stroke | 1997 | 692-W0078-02-00 | |
| Yamaha | C85 | 85 | 2-Stroke | 1991–1996 | 692-W0078-02-00 | |
| Yamaha | CV85 | 85 | 2-Stroke | 1989–1990 | 692-W0078-02-00 | |
| Yamaha | 90 | 90 | 2-Stroke | 1984–2009 | 692-W0078-02-00 | |
| Yamaha | B90 | 90 | 2-Stroke | 1997–1999 | 692-W0078-02-00 | |
| Yamaha | C90 | 90 | 2-Stroke | 1997–2001 | 692-W0078-02-00 |
Technical Specs
- Product Type
- Water Pump Impeller Repair Kit with Housing
- Installation
- Direct OEM replacement
- Housing Material
- Metal (Housing), Neoprene (Impeller)
- Housing Color
- Silver/Metallic
- Weight
- 0.37 kg (0.8 lb)
- Warranty
- Manufacturer standard warranty
- Other Technical Attributes
- Cooling system repair component
What’s in the Box
- 1 x Water Pump Housing (688-44311-01-00)
- 1 x Water Pump Impeller (688-44352-03-00)
- 1 x Woodruff Key Driveshaft (90280-04M04-00)
- 1 x Cartridge Insert (688-44322-00-00)
- 1 x Cartridge Outer Plate (688-44323-00-00)
- 1 x Cartridge Gasket (688-44324-A0-00)
- 1 x Water Pump Gasket (688-44315-A0-00)
- 1 x Water Pump Gasket (688-44316-A0-00)
- 1 x O-Ring (93210-46044-00)
- 2 x Bolt With Washer (90119-08M16-00)
- 2 x Bolt With Washer (90119-08M13-00)
Installation Notes
- Disconnect the battery and shift the outboard into neutral.
- Drain the gearcase oil from the lower unit.
- Remove the bolts securing the lower unit (gearcase) and carefully detach it from the upper housing.
- Unbolt and remove the old water pump housing assembly from the driveshaft.
- Clean the driveshaft and mounting surfaces, removing any old gasket material or corrosion.
- Install the new woodruff key, impeller, gaskets, and housing from the kit. Ensure the impeller vanes are oriented correctly.
- Lightly grease the interior of the housing and apply sealant to gaskets as needed.
- Carefully reinstall the lower unit, aligning the driveshaft, shift shaft, and water tube. Secure all bolts to the manufacturer's torque specifications.
- Refill the gearcase with fresh lubricant before operation.
Troubleshooting & FAQ
How do I know if this kit fits my Yamaha engine?
This kit is specifically designed for Yamaha 60-90 HP 2-Stroke outboards made between 1984 and 2009. The best way to confirm fitment is to check your engine's model and year against the compatibility table on this page. Verifying the OEM part number (692-W0078-02-00) in your service manual is also a reliable method.
What are the signs of a failing water pump impeller?
Common symptoms include a weak or non-existent "telltale" water stream, engine overheating alarms, and reduced engine performance. A visual inspection may reveal cracked, brittle, or missing vanes on the old impeller.
How often should I replace the water pump impeller?
As a general maintenance guideline, it is recommended to inspect and/or replace your water pump impeller every 1-2 years or every 100-200 hours of operation, depending on usage conditions. Engines operated in saltwater or sandy/silty water may require more frequent service.
What is the benefit of a full kit versus just an impeller?
While replacing just the impeller is possible, a full kit is recommended for a comprehensive repair. The housing, gaskets, and plates also wear over time. Replacing all components at once ensures proper sealing and pressure, preventing premature failure and potential engine damage.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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