Water Pump Repair Kit with Housing for Yamaha F40 4-Stroke Outboard (2010–2023) – Replaces Yamaha 6BG-W0078-00
Water Pump Repair Kit with Housing for Yamaha F40 4-Stroke Outboard (2010–2023) – Replaces Yamaha 6BG-W0078-00 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Water Pump Repair Kit with Housing for Yamaha F40 4-Stroke Outboard...
Water Pump Repair Kit with Housing for Yamaha F40 4-Stroke Outboard (2010–2023) – Replaces Yamaha 6BG-W0078-00 is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Repair Kit with Housing is designed for Yamaha F40 4-stroke outboard motors from 2010 through 2023. The kit is intended to service the engine cooling system and replace worn water-pump components, including the pump housing.
This is an aftermarket replacement for the Yamaha water-pump reference 6BG-W0078-00. Verify the complete engine model, year, and original component configuration before ordering.
- Complete water pump service kit with housing.
- Designed for Yamaha F40 4-stroke outboards, model years 2010–2023.
- Helps restore water-pump circulation and cooling-system performance.
- Aftermarket replacement; not a genuine Yamaha OEM component.
Part Number Reference
The following reference identifies the Yamaha application associated with this product. It is not a claim that every water-pump kit using a similar part number has the same contents.
| Brand | Reference | Application Note |
|---|---|---|
| Yamaha | 6BG-W0078-00 | Water pump service kit with housing for the specified Yamaha F40 application |
Engine & Model Compatibility
Compatibility is limited to the application stated below. Confirm the model designation and year shown on your engine before purchasing.
| Brand | Model | Rated HP | Stroke | Years | Reference | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F40 | 40 HP | 4-Stroke | 2010–2023 | 6BG-W0078-00 | Water pump service kit with housing |
Technical Specs
- Product Type
- Water pump repair kit with housing
- Application
- Yamaha F40 4-stroke outboard
- Compatible Years
- 2010–2023
- Installation
- Replacement service part; installation should follow the applicable Yamaha service procedure
- System
- Marine outboard cooling system
What’s in the Box
This product is supplied as a water pump service kit with housing. The exact component design and hardware should be compared with the original assembly before installation. Package contents are intended for the Yamaha F40 application stated above.
- Water pump housing
- Water pump service components
- Installation seals, gaskets, and related service hardware as supplied for this kit
Important: Individual component part numbers and quantities can vary by kit configuration. Do not assume that a separate water-pump component listing or a without-housing kit has the same contents as this product.
Installation Notes
- Disconnect the battery and place the engine in a safe, stable position.
- Remove the lower unit according to the applicable Yamaha service procedure.
- Remove the existing water-pump assembly and inspect the water tube, driveshaft, key, and mating surfaces.
- Clean all sealing surfaces and remove old gasket material and debris.
- Install the replacement housing and service components in the correct orientation.
- Ensure the impeller key and impeller are correctly positioned before fitting the pump cover.
- Apply the manufacturer-specified torque to the pump fasteners; do not guess torque values.
- Reinstall the lower unit, aligning the water tube, driveshaft, and shift mechanism.
- Reconnect the battery and test the engine with an adequate water supply.
- Confirm a steady cooling-water telltale stream and check for leaks before normal operation.
Troubleshooting & FAQ
Which Yamaha outboard does this kit fit?
This kit is specified for Yamaha F40 4-stroke outboards from 2010–2023. It is not a general replacement for every Yamaha F25, F30, F40, T25, or other outboard model. Confirm the exact model and year before ordering.
Does this kit include the water pump housing?
Yes. The company product specification identifies this product as a water pump service kit with housing.
Is this a genuine Yamaha part?
No. This is an aftermarket replacement intended for the Yamaha F40 application listed above.
What are the signs of a failing water pump?
Common signs include a weak or intermittent telltale stream, overheating warnings, abnormal temperature rise, or steam near the exhaust. Inspect the impeller and the complete pump assembly if any of these symptoms occur.
Can a without-housing water pump kit be substituted?
Not automatically. A kit supplied without a housing has different package contents. Compare the original assembly and the exact engine model and year before selecting a replacement.
How often should the water pump be serviced?
Inspect the water pump during scheduled maintenance and replace worn or damaged components promptly. Service intervals may be shorter in sandy, silty, or saltwater operating conditions. Follow the maintenance schedule for your specific engine.
Shipping speed & cost?
Shipping options and delivery estimates are shown at checkout and may vary by destination and availability.
Warranty & returns?
Returns and warranty coverage are subject to the applicable store policy. Contact support with your order details if you need assistance.
Safety & Important Info
- Confirm the Yamaha F40 4-stroke model and 2010–2023 year range before purchase.
- Compare the replacement housing and service components with the original assembly before installation.
- Do not operate the engine without an adequate cooling-water supply.
- Use the applicable Yamaha service instructions and specified torque values.
- Professional installation is recommended if you are unfamiliar with lower-unit or water-pump service.
About Sea Sierra
- Marine replacement parts for practical outboard service and maintenance.
- Application-focused product information to help match parts with the correct engine.
- Support for customers selecting replacement cooling-system components.
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