Yamaha Motors
/yamaha/products/6h4-w0078-a0-00-obsolete-yamaha-partWater Pump Repair Kit 6H4-W0078-A0-00
/yamaha/products/6h4-w0078-a0-00-obsolete-yamaha-part
$44.76$55.95
You save 20%($11.19)
-20%
In stock
5+ in stock
- Guaranteed fitment for 5 different models
- This is an OEM part manufactured by Yamaha Motors
- 30 day return policy
PartX Alternatives — This part: Best
Ratings provided by PartX™
| Product | Price | Rating | Comment |
|---|---|---|---|
| Yamaha Motors 6H4-W0078-A0-00 Water Pump Repair Kit (viewing this product) Genuine OEM product | $48.20 In stock 5+ in stock | Best | Factory OEM parts will always have a BEST rating unless there is substantial data to prove otherwise. |
| EMP 46-02078 Water Pump Service Kit Aftermarket product | $41.64 In stock Only 1 remaining | Better | EMP has a default Better rating based on overall brand quality. Some products may have a Best rating however we don't yet have sufficient data to provide an exact rating for this particular product. |
| Recmar REC663-44311-02 WATER PUMP HOUSING (REC663-44311-02) Aftermarket product | $28.05 In stock Only 4 remaining | Good | Designed as a direct 1:1 replacement with matching internal geometry and the same style of metal sleeve inserts in the mounting holes, so fit and function should be very close to OEM. Mold finish looks comparable, but it appears to be an independent reproduction made in China, so material spec consistency and long-term durability are less certain than OEM. |
| Peach Motors PM-6H4-W0078-A0-00 Water Pump Repair Kit Aftermarket product | $49.50 In stock 5+ in stock | Unknown | We are working hard to determine a rating based on all available information, including product and manufacturing specifications. |
| Sierra Marine 18-3429 Sierra 3429 Yamaha Water Pump Repair Kit Aftermarket product | $49.45 No longer availableSearch Nationwide Inventory | Unknown | We are working hard to determine a rating based on all available information, including product and manufacturing specifications. |
| Sierra Marine 18-3408 Yamaha Water Pump Kits w/Housing Aftermarket product | $82.95 No longer availableSearch Nationwide Inventory | Unknown | We are working hard to determine a rating based on all available information, including product and manufacturing specifications. |
| GLM Marine 12287 Complete Water Pump Kit (12287) Aftermarket product | $66.66 In stock Only 1 remaining | Unknown | We are working hard to determine a rating based on all available information, including product and manufacturing specifications. |
| Recmar REC6H4-W0078-00 WATER PUMP SERVICE KIT (REC6H4-W0078-00) Aftermarket product | $28.05 In stock Only 4 remaining | Unknown | We are working hard to determine a rating based on all available information, including product and manufacturing specifications. |
| GLM Marine 12064 Water Pump Service Kit (12064) Aftermarket product | $40.40 In stock Only 2 remaining | Unknown | We are working hard to determine a rating based on all available information, including product and manufacturing specifications. |
Product Description
Yamaha factory part. Search for more factory parts & parts diagrams.
Product Questions 1
Is this just a impeller or a full kit with wesr plates
Hi, this is the complete kit.
24 Product Reviews
Very good, had some snafu's but support straightened them out pretty fast
David Harris — Jul 23, 2026
Every helpful .thay new what I needed right away.
Kenneth Gates — Jun 18, 2025
I have used Crowley Marine several times. They have been good to work with. Shipping orders as soon as the items were available. I will continue to order from them when I need parts.
John A Kirgan — Mar 14, 2025
Shopping experience: Excellent Repair difficulty: Easy Repair time: Less than 30 mins
Shane Byington — Oct 31, 2023
Parts Fitment
Please verify fitment before ordering.
| Brand | Product Line | Model | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yamaha Motors | International | 25 | ||||||||||||
| Yamaha Motors | International | 40 | ||||||||||||
| Yamaha Motors | International | 50 | ||||||||||||
| Yamaha Motors | Outboard | 40 | ||||||||||||
| Yamaha Motors | Outboard | 50 |
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Supersession Chain
| Name | SKU | Superseding SKU |
|---|---|---|
| Water Pump Repair KitViewing this product | 6H4-W0078-A0-00 | Current |
| WATER PUMP REPAIR KIT | 6H4-W0078-01-00 | 6H4-W0078-A0-00 |
| WATER PUMP REPAIR KIT | 6H4-W0078-00-00 | 6H4-W0078-A0-00 |
Aftermarket Interchange
| Name | SKU | Price | Brand |
|---|---|---|---|
| Water Pump Repair Kit | PM-6H4-W0078-A0-00 | $49.50 | Peach Motors |
| Complete Water Pump Kit (12287) | 12287 | $66.66 | GLM Marine |
| Water Pump Service Kit (12064) | 12064 | $40.40 | GLM Marine |
| WATER PUMP HOUSING (REC663-44311-02) | REC663-44311-02 | $28.05 | Recmar |
| WATER PUMP SERVICE KIT (REC6H4-W0078-00) | REC6H4-W0078-00 | $28.05 | Recmar |
| Water Pump Service Kit | 46-02078 | $41.64 | EMP |
| Yamaha Water Pump Kits w/Housing | 18-3408 | $82.95 | Sierra Marine |
| Sierra 3429 Yamaha Water Pump Repair Kit | 18-3429 | $49.45 | Sierra Marine |