Water Pump Repair Kit Without Housing for Yamaha Outboards – Replaces 6CB-W0078-00-00, 6P2-W0078-00-00 and 60X-W0078-00-00
Water Pump Repair Kit Without Housing for Yamaha Outboards – Replaces 6CB-W0078-00-00, 6P2-W0078-00-00 and 60X-W0078-00-00 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.
International delivery times may vary due to customs processing.
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Water Pump Repair Kit Without Housing for Yamaha Outboards – Replac...
Water Pump Repair Kit Without Housing for Yamaha Outboards – Replaces 6CB-W0078-00-00, 6P2-W0078-00-00 and 60X-W0078-00-00 is backordered and will ship as soon as it is back in stock.
Product Details
This water pump repair kit is intended for Yamaha outboard water pump service. The kit is supplied without the water pump housing, making it suitable for replacing the service components while reusing a serviceable housing from the existing water pump assembly.
The company product record identifies this as a 4-stroke Yamaha outboard water pump service kit and lists the Yamaha OEM reference numbers below. The exact engine model, year, serial-number range and component configuration are not specified in the product record, so confirm the reference number and water pump assembly before ordering.
- Water pump repair kit supplied without housing.
- Designed for water pump service and cooling-system maintenance.
- Use the OEM reference matrix and your engine information to confirm compatibility.
Part Number Matrix
These Yamaha OEM reference numbers are listed for this product. They are reference numbers for identification and should be matched to the engine model and water pump assembly before installation.
| Brand | OEM Reference Number |
|---|---|
| Yamaha | 6CB-W0078-00-00 |
| Yamaha | 6P2-W0078-00-00 |
| Yamaha | 60X-W0078-00-00 |
Engine & Model Compatibility
The company product record does not provide a confirmed model, year, horsepower, shaft length or serial-number range for this item. Do not rely on a general Yamaha brand match alone. Confirm the complete engine model, year, stroke, serial number and the reference number of the existing water pump kit before purchase.
| Brand | Engine Information | Stroke | OEM Reference Numbers | Fitment Status |
|---|---|---|---|---|
| Yamaha Outboard | Specific model, year and serial range not stated in the product record | 4-Stroke service category | 6CB-W0078-00-00; 6P2-W0078-00-00; 60X-W0078-00-00 | Verify before ordering |
Technical Specs
- Product Type
- Water pump repair kit
- Housing
- Not included; supplied without water pump housing
- Application Category
- Yamaha outboard 4-stroke water pump service
- Installation
- Service replacement for the applicable water pump assembly
- OEM Reference Numbers
- 6CB-W0078-00-00, 6P2-W0078-00-00 and 60X-W0078-00-00
What’s in the Box
The product is a water pump repair kit supplied without the water pump housing. The company record does not provide a component-by-component quantity list, so inspect the supplied kit and compare it with the parts required for your specific engine before beginning installation.
- 1 x Water pump repair kit, without housing
Not included: water pump housing, engine-specific parts not identified in the product record, or unrelated maintenance items such as spark plugs, filters, anodes and thermostats.
Installation Notes
- Confirm the engine model, year, stroke, serial number and water pump reference number before disassembly.
- Disconnect the battery and follow the engine manufacturer's safety procedures.
- Remove the lower unit according to the service instructions for your specific outboard.
- Remove the water pump housing and note the orientation of the existing components.
- Inspect the reusable housing, drive key, shaft, wear surfaces and mating surfaces for corrosion or damage.
- Remove old gasket material and debris without damaging the sealing surfaces.
- Install the applicable repair components from the kit in the correct order and orientation.
- Reuse the housing only if it is serviceable and matches the specified water pump assembly.
- Reassemble the water pump and lower unit using the manufacturer's specified torque values.
- Run the engine in an appropriate test environment and confirm a steady cooling-water tell-tale stream before normal operation.
Troubleshooting & FAQ
Does this kit include the water pump housing?
No. This product is the water pump repair kit without housing. The existing housing must be reused only if it is in serviceable condition and matches the applicable water pump assembly.
Which OEM reference numbers are associated with this kit?
The product record lists Yamaha reference numbers 6CB-W0078-00-00, 6P2-W0078-00-00 and 60X-W0078-00-00. Match the complete number to your engine and existing water pump parts before ordering.
Will this kit fit my Yamaha outboard?
Specific model, year and serial-number fitment is not provided in the product record. Confirm the complete engine identification and the water pump reference number rather than relying only on horsepower, model family or brand.
What are common signs of a worn water pump?
Common warning signs include overheating, a weak or inconsistent tell-tale stream, reduced cooling-water flow and visibly damaged, brittle or cracked pump components. Stop operation if the engine overheats and diagnose the cooling system before continued use.
Can I install this kit without replacing the housing?
Yes, the kit is supplied without a housing, but the existing housing must be inspected carefully. Replace it if it is worn, distorted, corroded or otherwise unsuitable for reuse.
What is the recommended replacement interval?
Inspect the water pump during scheduled maintenance and replace worn components according to the engine manufacturer's service guidance and the operating conditions of the boat. Saltwater, sand and extended storage can increase wear.
What are your shipping speeds and costs?
Typical international transit is 5–15 days. Standard shipping is free for most orders, with expedited options available at checkout where applicable.
What is your warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the standard return window for unused items in their original condition. Contact support with your order details for assistance.
Safety & Important Info
- Verify the complete engine model, year, stroke, serial number and OEM reference number before purchase.
- This kit is supplied without the water pump housing.
- Do not operate an outboard with inadequate cooling-water flow or signs of overheating.
- Professional installation is recommended if you are not familiar with lower-unit and water-pump service.
About Sea Sierra
- Marine Maintenance Parts — Practical replacement parts for routine outboard service and repair.
- Global Fulfillment — Standard delivery is available to most regions, with delivery options shown at checkout.
- Support When You Need It — Contact our support team with your engine identification and reference number when checking product compatibility.
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