Water Pump Repair Kit with Housing for Yamaha F4 and F6 4-Stroke Outboards, 2009–2023 (6EE-W0078-01 / 6BX-WG078-00)
Water Pump Repair Kit with Housing for Yamaha F4 and F6 4-Stroke Outboards, 2009–2023 (6EE-W0078-01 / 6BX-WG078-00) is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.
If the return is due to our error or a defective item, we’ll make it right.
Please contact us before returning any item.
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.
International delivery times may vary due to customs processing.
Tracking information will be provided once your order ships.
Water Pump Repair Kit with Housing for Yamaha F4 and F6 4-Stroke Ou...
Water Pump Repair Kit with Housing for Yamaha F4 and F6 4-Stroke Outboards, 2009–2023 (6EE-W0078-01 / 6BX-WG078-00) is backordered and will ship as soon as it is back in stock.
Product Details
This water pump repair kit with housing is intended for select Yamaha 4-stroke F4 and F6 outboard engines from model years 2009 through 2023. It is designed for water pump service and includes the replacement water pump housing specified for this service-kit configuration.
Use the engine model, year, and existing part number to confirm compatibility before ordering. This aftermarket kit is listed against Yamaha reference numbers 6EE-W0078-01 and 6BX-WG078-00. Aftermarket reference 18-3473 is also associated with this kit.
- Water pump service kit supplied with housing.
- For select Yamaha F4 and F6 4-stroke outboards.
- Designed to replace worn water pump service components during maintenance.
- Aftermarket replacement; not a Yamaha-manufactured OEM component.
Part Number Matrix
Use the following reference numbers together with your engine model and year when checking application.
| Reference Type | Brand or Source | Part Number | Notes |
|---|---|---|---|
| Manufacturer reference | Yamaha | 6EE-W0078-01 | Reference listed for this water pump service kit. |
| Manufacturer reference | Yamaha | 6BX-WG078-00 | Reference listed for this water pump service kit. |
| Aftermarket reference | Aftermarket | 18-3473 | Aftermarket reference associated with the kit. |
Engine & Model Compatibility
Compatibility is limited to the model, stroke, and year range shown below. Confirm the complete engine identification and compare the original water pump assembly before installation.
| Brand | Model | Rated HP | Stroke | Years | Reference Numbers |
|---|---|---|---|---|---|
| Yamaha | F4 | 4 HP | 4-Stroke | 2009–2023 | 6EE-W0078-01; 6BX-WG078-00 |
| Yamaha | F6 | 6 HP | 4-Stroke | 2009–2023 | 6EE-W0078-01; 6BX-WG078-00 |
Technical Specs
- Product Type
- Water pump repair kit with housing
- Application
- Select Yamaha F4 and F6 4-stroke outboards
- Applicable Years
- 2009–2023, subject to engine-model verification
- Replacement References
- 6EE-W0078-01 and 6BX-WG078-00
- Aftermarket Reference
- 18-3473
- Brand Status
- Aftermarket replacement; not a Yamaha OEM component
What’s in the Box
- 1 x Water pump repair kit with housing
The company product record identifies this product as a water pump service kit with housing. Individual component quantities and a detailed component list are not specified in the available product record. Please compare the supplied kit with the original assembly before installation.
Installation Notes
- Confirm the engine brand, model, stroke, and year before beginning work.
- Disconnect the battery and follow the engine manufacturer's service-safety procedures.
- Remove the lower unit according to the applicable Yamaha service instructions.
- Remove the existing water pump components and housing, noting their orientation and fastener locations.
- Inspect the driveshaft, water tube, mating surfaces, and surrounding components for wear, corrosion, or damage.
- Install the replacement water pump service components and housing included with the kit.
- Use the manufacturer's specified torque values and installation procedures for all fasteners.
- Reinstall the lower unit, ensuring correct driveshaft and water-tube alignment.
- Run the engine using the manufacturer's approved test procedure and verify proper cooling-water flow before normal operation.
Troubleshooting & FAQ
How can I tell if my water pump needs service?
Possible signs include a weak or missing tell-tale stream, an overheating warning, or visible damage to water pump components. Stop operation if the engine overheats and inspect the cooling system before continuing to run it.
Which Yamaha engines does this kit fit?
The listed application is Yamaha F4 and F6 4-stroke outboards from 2009 through 2023. The kit is not listed for F5 engines. Confirm the exact engine model and year before ordering.
Will this kit fit a Yamaha 2-stroke engine?
No. The listed application is limited to the Yamaha F4 and F6 4-stroke models and year range shown on this page.
Does the kit include a housing?
Yes. The company product record identifies this item as a water pump service kit with housing.
Does the package include every individual water pump component?
The product is sold as a water pump repair kit with housing, but the available product record does not provide a complete itemized component list or quantities. Compare the kit contents with the original assembly before installation.
Is this a Yamaha OEM part?
No. This is an aftermarket replacement kit associated with Yamaha reference numbers 6EE-W0078-01 and 6BX-WG078-00, plus aftermarket reference 18-3473.
Safety & Important Info
- Verify the complete engine model, stroke, and year against the compatibility table before purchase.
- Compare the original water pump housing and service assembly with the replacement kit before installation.
- Do not operate an engine with inadequate cooling-water flow or an overheating warning.
- This is an aftermarket replacement, not a Yamaha OEM component.
- Professional installation is recommended when lower-unit or cooling-system service is unfamiliar.
About Sea Sierra
- Marine Parts Support — We provide replacement parts for common marine maintenance and repair applications.
- Application-Focused Listings — Product pages identify reference numbers and available model, stroke, and year information to support fitment checks.
- Aftermarket Value — Replacement solutions for routine marine service and maintenance.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
