Water Pump Impeller Repair Kit for Yamaha 60–90 HP 2-Stroke Outboards (Replaces 692-W0078-02-00)
Water Pump Impeller Repair Kit for Yamaha 60–90 HP 2-Stroke Outboards (Replaces 692-W0078-02-00) is backordered and will ship as soon as it is back in stock.
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Water Pump Impeller Repair Kit for Yamaha 60–90 HP 2-Stroke Outboar...
Water Pump Impeller Repair Kit for Yamaha 60–90 HP 2-Stroke Outboards (Replaces 692-W0078-02-00) is backordered and will ship as soon as it is back in stock.
Product Details
This water pump impeller repair kit is designed for selected Yamaha 60–90 HP 2-stroke outboards. It provides the impeller, drive key, cartridge components, gaskets, O-ring, and listed fasteners needed for a water pump service when the existing housing is reusable.
The listed application range includes Yamaha 2-stroke outboards from approximately 1984 through 2009, including selected C75, P75, E75, C80, C85, CV85, B90, and C90 models. Always verify the exact engine model, year, serial range, original component dimensions, and part number before ordering.
- Replacement water pump service kit for the applications listed below.
- Neoprene impeller intended to restore water-pump circulation when correctly installed.
- Includes the listed gaskets, O-ring, drive key, cartridge parts, and bolts.
- Does not include the main outer water pump housing.
Part Number Matrix
These are reference numbers associated with the listed application. A number match alone does not replace verification of the complete engine model and year.
| Brand | Part Number |
|---|---|
| Yamaha | 692-W0078-02-00 |
| Yamaha | 692-W0078-A0-00 |
| Yamaha | 692-W0078-00-00 |
| Yamaha | 692-W0078-01-00 |
| Sierra | 18-3370 |
| Sierra | 18-3371 |
| Mallory | 9-48602 |
| Mallory | 9-48606 |
| Mallory | 9-48616 |
Engine & Model Compatibility
Confirm the exact engine model and year before purchase. The following table reflects the listed Yamaha 2-stroke applications and keeps horsepower, stroke, model, and year conditions together.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| 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 | C80 | 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
- Application
- Selected Yamaha 60–90 HP 2-stroke gasoline outboards
- Installation
- Replacement service installation
- Housing Material
- Metal alloy
- Impeller Material
- Neoprene rubber
- Impeller Dimensions
- Diameter: 2-5/8 inches (66.7 mm); depth: 1-13/16 inches (46 mm)
- Impeller Configuration
- 6 fins
What’s in the Box
- 1 × Water pump impeller (688-44352-03-00)
- 1 × Woodruff key for driveshaft (90280-04M04-00)
- 1 × Cartridge insert (688-44322-00-00)
- 1 × Cartridge outer plate (688-44323-00-00)
- 1 × Cartridge gasket (688-44324-A0-00)
- 1 × Water pump gasket (688-44315-A0-00)
- 1 × Water pump gasket (688-44316-A0-00)
- 1 × O-ring (93210-46044-00)
- 2 × Bolt with washer (90119-08M16-00)
- 2 × Bolt with washer (90119-08M13-00)
Installation Notes
- Disconnect the battery and make sure the engine is switched off and cool.
- Drain the gearcase lubricant from the lower unit according to the service procedure for your engine.
- Remove the lower unit from the outboard.
- Remove the water pump housing to access the existing impeller and pump components.
- Clean the housing and mating surfaces, and inspect the reusable housing for wear or damage.
- Install the drive key, impeller, cartridge components, gaskets, O-ring, and listed fasteners. Confirm the impeller is oriented correctly for the direction of shaft rotation.
- Reinstall the water pump housing and tighten fasteners to the engine manufacturer’s specifications.
- Reattach the lower unit, refill the gearcase with the specified lubricant, and reconnect the battery.
- Run the engine only with an adequate water supply and verify water circulation from the tell-tale outlet before returning the boat to service.
Troubleshooting & FAQ
How can I confirm that this kit fits my engine?
Compare the engine brand, model, horsepower, stroke, year, and any applicable serial-range information with the compatibility table. Also compare the original impeller and pump components with the listed dimensions and reference numbers. If any of these details differ, confirm fitment before ordering.
What are common signs of a failing water pump impeller?
Possible signs include a weak or missing tell-tale stream, an overheating warning, elevated operating temperature, or reduced cooling performance. A removed impeller may show cracked, brittle, deformed, or missing fins.
How often should the impeller be replaced?
Impeller service intervals depend on engine use, storage, water conditions, and the manufacturer’s maintenance schedule. Inspect and replace the impeller at the interval specified for your engine, and replace it sooner if it shows wear or the engine has been operated with restricted water flow.
Does this kit include the complete water pump housing?
No. This is an impeller repair kit containing the components listed in the box contents. The main outer water pump housing is not included.
Is this an OEM part?
This listing is for an aftermarket replacement kit. The Yamaha, Sierra, and Mallory numbers shown are reference numbers for application and cross-reference purposes; verify the complete engine application before installation.
What should I do if the supplied parts do not match my original components?
Do not force installation or operate the engine with mismatched pump parts. Stop and compare the engine information, original component dimensions, and reference numbers, then contact the seller before installation.
Safety & Important Information
- Verify the engine model, year, stroke, application, dimensions, and reference numbers before purchase.
- Inspect the water pump housing and related components during installation; worn parts may require separate replacement.
- Follow the manufacturer’s service manual for lower-unit removal, fastener torque, lubricant, and testing procedures.
- Use an adequate water supply when testing the outboard and stop the engine immediately if water circulation is not established.
- This is an aftermarket replacement kit, not an OEM component.
- Professional installation is recommended when the required service procedure is unfamiliar.
About Sea Sierra
- Marine Replacement Parts — Parts selected for clearly identified marine service applications.
- Application-Focused Information — Product details and reference numbers are provided to support model and component verification.
- Service Support — Contact support if you need help comparing the listed application with your original part.
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