Water Pump Service Kit with Housing for Yamaha 115HP / 130HP Outboards – 2-Stroke and F115 4-Stroke
Water Pump Service Kit with Housing for Yamaha 115HP / 130HP Outboards – 2-Stroke and F115 4-Stroke is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Water Pump Service Kit with Housing for Yamaha 115HP / 130HP Outboa...
Water Pump Service Kit with Housing for Yamaha 115HP / 130HP Outboards – 2-Stroke and F115 4-Stroke is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket water pump service kit with housing is designed for selected Yamaha 115HP and 130HP outboard applications. It provides the principal components needed to service the water pump and restore dependable engine cooling, including the pump housing, impeller, gaskets, wear-plate and related installation hardware.
The company application data identifies this kit for selected Yamaha 2-Stroke 115, C115, P115 and S115 models from 1996–1999, selected 2-Stroke 130 models from 1993–1996, selected 2-Stroke 115 and C115 models from 1997–2023, and the 4-Stroke F115 from 2000–2001. Model, year and serial-number verification is essential before ordering.
- Water pump service kit supplied with a pump housing.
- Aftermarket replacement for servicing the outboard cooling system.
- Designed for the specific Yamaha applications listed below; it is not a universal 6HP/8HP kit.
Part Number References
Use these references together with your complete engine model and year when checking compatibility.
| Reference Type | Part Number |
|---|---|
| Yamaha OEM reference | 6N6-W0078-00 |
| Aftermarket reference | 18-3313-1 |
Engine & Model Compatibility
The following applications are stated in the company catalog for this product. Compatibility is subject to the exact model designation and serial-number range.
| Brand | Model / Series | Rated HP | Stroke | Years | Application Notes |
|---|---|---|---|---|---|
| Yamaha | 115, C115, P115, S115 | 115 | 2-Stroke | 1996–1999 | Verify the complete model and serial number. |
| Yamaha | 130 | 130 | 2-Stroke | 1993–1996 | Verify the complete model and serial number. |
| Yamaha | 115, C115 | 115 | 2-Stroke | 1997–2023 | Use the specific model and serial-number range to confirm fitment. |
| Yamaha | F115 | 115 | 4-Stroke | 2000–2001 | Verify the complete model and serial number. |
Technical Specs
- Product Type
- Water pump service kit with housing
- Brand Application
- Yamaha Outboard
- Stroke Applications
- Selected 2-Stroke 115HP and 130HP applications; selected 4-Stroke F115 application
- Installation
- Replacement water pump service assembly; professional installation is recommended
- Product Status
- Aftermarket replacement, not a Yamaha-manufactured OEM component
What’s in the Box
This product is supplied as a water pump service kit with housing. The service components include:
- Water pump housing
- Water pump impeller
- Impeller key
- Cartridge cup or insert
- Wear plate
- Water pump gasket
- O-rings
- Dowel pins and mounting hardware
Component appearance may vary by production batch. Compare the supplied parts with the removed assembly and the application references before installation.
Installation Notes
- Disconnect the battery and follow the engine manufacturer's safety procedures.
- Shift the outboard into neutral and remove the lower-unit mounting hardware.
- Lower the gearcase carefully, keeping the driveshaft, water tube and shift connection protected.
- Remove the old water pump housing and note the orientation of the impeller, key, gaskets, wear plate and seals.
- Clean all mating surfaces and remove old gasket material without damaging the sealing surfaces.
- Install the wear plate, gasket and impeller key in the correct positions.
- Fit the new impeller over the key and rotate the driveshaft in the correct direction while seating the impeller vanes in the housing.
- Install the supplied housing, cup or insert, O-rings and remaining hardware as applicable to the engine configuration.
- Reinstall the lower unit, ensuring that the water tube and driveshaft are correctly aligned.
- Tighten all fasteners to the engine manufacturer's torque specifications.
- Run the engine with an appropriate water supply and confirm a strong tell-tale stream before returning the outboard to service.
Troubleshooting & FAQ
How do I know whether this kit fits my Yamaha outboard?
Match the complete engine model, horsepower, stroke type and year to the compatibility table. Because Yamaha applications can vary by serial-number range, do not rely on horsepower alone. Compare the original water pump reference and housing configuration before ordering.
Does this kit include the water pump housing?
Yes. The company product record identifies this product as a water pump service kit with housing.
What are common signs of a worn water pump impeller?
Typical symptoms include a weak or missing tell-tale stream, overheating warnings, rising operating temperature and reduced cooling performance. Stop operation promptly if overheating occurs and inspect the water pump system.
When should the water pump be serviced?
Inspect the water pump according to the engine manufacturer's maintenance schedule. Frequent operation in saltwater, sand or muddy water can accelerate wear and may require more frequent inspection.
Is this a genuine Yamaha OEM part?
No. This is an aftermarket replacement service kit. The listed Yamaha number is provided as an application reference only.
Can I install this kit myself?
Water pump service requires removal and correct reinstallation of the lower unit. If you are not familiar with outboard drivetrain and cooling-system service, use a qualified marine technician.
Safety & Important Information
- Confirm the complete engine model, year and serial-number range before purchase.
- Do not operate an outboard that shows overheating symptoms or lacks a proper tell-tale stream.
- Use the manufacturer's torque specifications and installation procedures.
- This is an aftermarket replacement and is not manufactured by Yamaha.
- Inspect all supplied components before installation and do not install damaged or incorrect parts.
About Sea Sierra
- Marine-Focused Parts — Replacement components selected for common outboard maintenance and repair applications.
- Application-Based Listings — Product information is organized around engine model, horsepower, stroke and year requirements.
- Practical Service Support — Clear component and installation information helps you prepare for routine marine maintenance.
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