Water Pump Repair Kit Without Housing for Yamaha 4-Stroke V6 F225, VF225, F250, VF250 and F300 Outboards
Water Pump Repair Kit Without Housing for Yamaha 4-Stroke V6 F225, VF225, F250, VF250 and F300 Outboards 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 Repair Kit Without Housing for Yamaha 4-Stroke V6 F225, ...
Water Pump Repair Kit Without Housing for Yamaha 4-Stroke V6 F225, VF225, F250, VF250 and F300 Outboards 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 selected Yamaha 4-stroke outboards in the V6 F225, VF225, F250, VF250 and F300 model families. It services the lower-unit water pump assembly and is intended for applications using Yamaha OEM water pump kit references 6CE-W0078-01-00 and 6CE-W0078-02-00.
This is a repair kit without the water-pump housing. Confirm the model, serial-number range and existing pump configuration before ordering, because Yamaha fitment can vary by engine version and production year.
- Services the lower-unit water pump assembly.
- Designed for selected Yamaha 4-stroke V6 applications.
- Supplied without the water-pump housing.
- Use the OEM references and component configuration to verify compatibility.
Part Number References
The following Yamaha OEM numbers are associated with this repair-kit application:
| Brand | OEM Part Number |
|---|---|
| Yamaha | 6CE-W0078-01-00 |
| Yamaha | 6CE-W0078-02-00 |
Engine Compatibility
This kit is listed for selected Yamaha 4-stroke outboards in the following model families. Model and serial-number verification is required before installation.
| Brand | Model Family | Rated HP | Stroke | Application Reference |
|---|---|---|---|---|
| Yamaha | F225 | 225 | 4-Stroke | 6CE-W0078-01-00 / 6CE-W0078-02-00 |
| Yamaha | VF225 | 225 | 4-Stroke | 6CE-W0078-01-00 / 6CE-W0078-02-00 |
| Yamaha | F250 | 250 | 4-Stroke | 6CE-W0078-01-00 / 6CE-W0078-02-00 |
| Yamaha | VF250 | 250 | 4-Stroke | 6CE-W0078-01-00 / 6CE-W0078-02-00 |
| Yamaha | F300 | 300 | 4-Stroke | 6CE-W0078-01-00 / 6CE-W0078-02-00 |
Technical Specifications
- Product Type
- Water pump repair kit
- Housing
- Not included
- Installation Location
- Lower unit
- Engine Type
- Selected Yamaha 4-stroke V6 outboards
- OEM Application References
- 6CE-W0078-01-00 and 6CE-W0078-02-00
What's in the Box
This listing is for the water pump repair-kit components and does not include the water-pump housing. Component quantities and included hardware may vary by application. Compare the supplied parts with the removed assembly and the service information for your specific engine before installation.
- Water pump service components for the applicable Yamaha assembly
- Impeller and related sealing components as supplied for the application
- Replacement hardware where included in the applicable kit configuration
Installation Notes
- Disconnect the battery and place the outboard in neutral.
- Drain the gearcase oil from the lower unit if required by the service procedure.
- Remove the lower unit from the midsection according to the engine manufacturer's service instructions.
- Remove the water-pump cover and existing pump components.
- Clean the mating surfaces, driveshaft and pump area thoroughly.
- Install the replacement water-pump components in the correct orientation. Do not reuse damaged seals, keys or fasteners.
- Reinstall the pump cover and tighten fasteners to the manufacturer's specified torque.
- Reinstall the lower unit, refill the gearcase with the correct lubricant and test for proper cooling-water flow.
Troubleshooting & FAQ
How do I verify fitment for my outboard?
Confirm the complete engine model, horsepower, stroke, year and serial-number range, then compare the existing water-pump assembly and OEM references with this listing. The kit is intended for selected Yamaha 4-stroke V6 F225, VF225, F250, VF250 and F300 applications; model-family matching alone is not sufficient.
What are the signs of a failing water-pump impeller?
Common symptoms include overheating at idle or low speed, weak or intermittent tell-tale water flow, steam-like exhaust and reduced engine performance. Stop operation and investigate promptly if the engine overheats.
Does this kit include the water-pump housing?
No. This is a water pump repair kit without the housing. Reuse the existing housing only if it is serviceable and matches the application; replace it if it is worn, scored or damaged.
How often should the water pump be serviced?
Follow the maintenance schedule for your specific Yamaha outboard. Service intervals may need to be shorter in saltwater or in water containing sand, silt or debris.
Are special tools required?
Standard marine mechanic tools are generally required. A torque wrench is recommended so fasteners can be tightened to the manufacturer's specifications. Follow the service manual for your exact engine.
Is this an OEM part?
This listing is for an aftermarket replacement kit, not a Yamaha-branded OEM component. The referenced Yamaha part numbers are used for application identification only.
What is the warranty?
The product is covered by the applicable seller warranty against manufacturing defects under normal use. Review the current warranty and return terms before installation.
Safety & Important Information
- Verify the complete engine model, year, serial number and water-pump configuration before ordering.
- Confirm that the existing housing and related pump surfaces are serviceable; the housing is not included.
- Use the correct torque values and installation procedure for the specific engine.
- Professional installation is recommended if you are not experienced with outboard lower-unit service.
- This is an aftermarket replacement, not an OEM component.
About Sea Sierra
- Pro-Grade Standards — We supply marine replacement parts intended for real-world service conditions.
- Manufacturer-Direct Value — Practical aftermarket solutions for routine marine maintenance.
- Customer Support — Contact support with your engine model and serial information when fitment assistance is needed.
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