Water Pump Repair Kit Without Housing for Yamaha 2-Stroke 60–90 HP Outboards – Replaces 692-W0078-02
Water Pump Repair Kit Without Housing for Yamaha 2-Stroke 60–90 HP Outboards – Replaces 692-W0078-02 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
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Water Pump Repair Kit Without Housing for Yamaha 2-Stroke 60–90 HP ...
Water Pump Repair Kit Without Housing for Yamaha 2-Stroke 60–90 HP Outboards – Replaces 692-W0078-02 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket Water Pump Repair Kit Without Housing is designed for specified Yamaha 2-Stroke outboard applications from 60 to 90 HP. It supplies service components for renewing the water pump and restoring dependable cooling-system operation.
The kit is supplied without the water pump housing. It is associated with Yamaha OEM reference 692-W0078-02 and aftermarket reference 18-3370. Always compare the reference number and your original components before ordering.
- Service kit for the outboard water pump assembly.
- Designed for selected Yamaha 2-Stroke 60, 70, 75, 80 and 90 HP applications.
- Includes replacement sealing, pump and related service components listed below.
- Water pump housing is not included.
Part Number Matrix
These are the principal product references associated with this replacement service kit. They should be used together with the engine model and year for fitment checking.
| Brand | Reference Type | Part Number |
|---|---|---|
| Yamaha | OEM reference | 692-W0078-02 |
| Aftermarket | Replacement reference | 18-3370 |
Engine & Model Compatibility
The company fitment information identifies the following Yamaha 2-Stroke applications. Model designations, production years and lower-unit configurations can vary, so confirm the exact model code and existing water-pump reference before installation.
| Brand | Model or Rating | Stroke | Years | Reference | Fitment Notes |
|---|---|---|---|---|---|
| Yamaha | 60 HP | 2-Stroke | 2004–2023 | 692-W0078-02 | Selected models only; verify the complete model code. |
| Yamaha | 70 HP | 2-Stroke | 2004–2023 | 692-W0078-02 | Selected models only; verify the complete model code. |
| Yamaha | C75, P75, C80, 90, B90 and C90 | 2-Stroke | 1997–2023 | 692-W0078-02 | Confirm model suffix, year and original pump reference. |
| Yamaha | E75 | 2-Stroke | Not specified | 692-W0078-02 | Year and model details must be confirmed before ordering. |
| Yamaha | C85 | 2-Stroke | 1991 | 692-W0078-02 | Verify the original water-pump reference. |
| Yamaha | CV85 | 2-Stroke | 1989–1990 | 692-W0078-02 | Verify the complete model code. |
| Yamaha | 90 HP | 2-Stroke | 1984–1991 | 692-W0078-02 | Confirm the model and existing pump reference. |
| Yamaha | E75 | 2-Stroke | 1995–1996 | 692-W0078-02 | Verify the exact model code. |
| Yamaha | P75 and C75 | 2-Stroke | 1994–1996 | 692-W0078-02 | P75 includes the listed 1996 application; confirm the original part. |
| Yamaha | C85 and 90 | 2-Stroke | 1992–1996 | 692-W0078-02 | Verify model suffix and water-pump reference. |
Technical Specs
- Product Type
- Water pump service and repair kit
- Housing
- Not included; supplied without water pump housing
- Application
- Selected Yamaha 2-Stroke outboards from 60 to 90 HP
- Installation
- Replacement service components for the existing water pump assembly
- OEM Reference
- Yamaha 692-W0078-02
- Aftermarket Reference
- 18-3370
What’s in the Box
The service kit includes the following listed components. The water pump housing is not included.
- 1 x Water pump gasket 1 (688-44315-A0-00)
- 1 x Water pump gasket 2 (688-44316-A0-00)
- 1 x Cartridge insert (688-44322-00-00)
- 1 x Cartridge outer plate (688-44323-00-00)
- 1 x Cartridge outer gasket (688-44324-A0-00)
- 1 x Impeller (688-44352-03-00)
- 2 x Bolt with washer (90119-08M13-00)
- 2 x Bolt with washer (90119-08M16-00)
- 1 x Woodruff key (90280-04M04-00)
- 1 x O-ring (93210-46044-00)
Installation Notes
- Disconnect the battery and place the outboard in a secure service position.
- Drain the lower-unit gearcase lubricant if required by the service procedure.
- Remove the lower-unit mounting bolts and carefully separate the lower unit from the engine.
- Remove the existing water-pump components and note the orientation of each part before disassembly.
- Clean all mating surfaces and inspect the existing water-pump housing for scoring, distortion or excessive wear. Replace the housing separately if necessary.
- Install the new gaskets, cartridge components, impeller, key, O-ring and fasteners supplied with the kit.
- Apply only the lubricant recommended by the engine manufacturer to the impeller and pump components.
- Reassemble the pump, aligning the gaskets and impeller correctly, and tighten fasteners to the manufacturer's specified torque.
- Reinstall the lower unit while aligning the driveshaft, shift shaft and water tube.
- Refill the gearcase with the recommended lubricant, reconnect the battery and test the cooling-water flow using a reliable water supply.
Follow the service manual for your exact engine. If your original housing or component layout differs, stop and verify fitment before installation.
Troubleshooting & FAQ
How can I tell if my water pump is failing?
Common warning signs include a weak or inconsistent tell-tale stream, an overheating alarm, reduced cooling-water flow or a damaged impeller with cracked, hardened or missing vanes.
Does this kit include the water pump housing?
No. This product is the water pump service kit without the housing. Inspect your existing housing and replace it separately if it is worn or damaged.
Which engines does this kit fit?
It is listed for selected Yamaha 2-Stroke 60, 70, 75, 80 and 90 HP applications, including specific C75, P75, C80, C85, C90, CV85, E75 and B90 model families. Verify the complete engine model, year and water-pump reference before ordering.
Is this an OEM Yamaha part?
No. This is an aftermarket replacement service kit associated with Yamaha OEM reference 692-W0078-02 and aftermarket reference 18-3370. Yamaha is a trademark of its respective owner; this product is not manufactured by Yamaha.
How often should the impeller be replaced?
Replacement intervals depend on operating hours, storage and water conditions. Inspect the impeller regularly and replace it when it shows wear or according to the maintenance schedule for your engine.
Shipping speed and cost
We ship worldwide. Typical transit is 5–15 days, and standard shipping is free; expedited options appear at checkout where available.
Warranty and returns
This product is covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the standard return window when the item is unused and in its original condition. Contact support with your order details for assistance.
Safety & Important Information
- Confirm the exact engine model, year, stroke and original water-pump reference before purchase.
- Check the product image and component layout against your original parts.
- The water pump housing is not included.
- This is an aftermarket replacement, not an OEM component.
- Use the engine service manual and the manufacturer's torque specifications during installation.
- Professional installation is recommended when servicing the lower unit or cooling system.
About Sea Sierra
- Marine Replacement Parts — We supply replacement components for routine service and repair applications.
- Global Fulfillment — Free standard delivery is available to most regions, with typical transit of 5–15 days.
- Service-Focused Selection — Our product range supports common marine maintenance needs while keeping fitment information clear.
Payment & Security
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