Yamaha Motors

Water Pump Repair Kit 6H4-W0078-A0-00

Country of Origin:

Japan

Satisfaction Rating

(24 ratings)

Genuine OEM product

Product	Price	Rating	Comment
Yamaha Motors 6H4-W0078-A0-00 Water Pump Repair Kit (viewing this product) Genuine OEM product	$48.20 ~~$56.70~~ In stock 5+ in stock	Best	Factory OEM parts will always have a BEST rating unless there is substantial data to prove otherwise.
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 ~~$48.99~~ 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.
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 ~~$31.17~~ 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.
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.
OMAX OMAX-6H4-W0078-00-WH WATER PUMP REPAIR KIT Aftermarket product	$1.00 In stock Only 1 remaining	Unknown	We are working hard to determine a rating based on all available information, including product and manufacturing specifications.
We are working hard to determine a rating based on all available information, including product and manufacturing specifications.
OMAX OMAX-6H4-W0078-00 WATER PUMP REPAIR KIT Aftermarket product	$1.00 In stock Only 1 remaining	Unknown	We are working hard to determine a rating based on all available information, including product and manufacturing specifications.
We are working hard to determine a rating based on all available information, including product and manufacturing specifications.
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.
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 Cross Ship Leaves in 3-5 days Please update to verify the current stock status. Product availability has not been checked in more than 7 days.	Unknown	We are working hard to determine a rating based on all available information, including product and manufacturing specifications.
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 Cross Ship Leaves in 3-5 days Please update to verify the current stock status. Product availability has not been checked in more than 7 days.	Unknown	We are working hard to determine a rating based on all available information, including product and manufacturing specifications.
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 ~~$83.33~~ In stock Only 1 remaining	Unknown	We are working hard to determine a rating based on all available information, including product and manufacturing specifications.
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 ~~$31.17~~ In stock Only 4 remaining	Unknown	We are working hard to determine a rating based on all available information, including product and manufacturing specifications.
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 ~~$50.50~~ In stock Only 2 remaining	Unknown	We are working hard to determine a rating based on all available information, including product and manufacturing specifications.
We are working hard to determine a rating based on all available information, including product and manufacturing specifications.

$48.20~~$56.70~~

You save $8.51

-15%

In stock

5+ in stock

Qty

This is an OEM part manufactured by Yamaha Motors

30 day return policy

Product Description

Yamaha factory part. Search for more factory parts & parts diagrams.

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Offshore II Prop - 3 Blade 15x20LH Stainless Steel

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Product Questions ¹

Is this just a impeller or a full kit with wesr plates

Hi, this is the complete kit.

24 Product Reviews

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

Shopping experience: Great really liked that i could bring up exploded views of my year and model and add to cart from there Repair difficulty: Easy Repair time: Less than 30 mins

Michael Rubey — Aug 30, 2023

Parts Fitment

Please verify fitment before ordering.

Brand	Product Line	Model
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 KIT	6H4-W0078-01-00	Current
WATER PUMP REPAIR KIT	6H4-W0078-00-00	Current
Water Pump Repair Kit(viewing)	6H4-W0078-A0-00	Current

Aftermarket Interchange

Name	SKU	Price
Water Pump Service Kit	46-02078	$39.94
WATER PUMP REPAIR KIT	OMAX-6H4-W0078-00	$1.00
WATER PUMP REPAIR KIT	OMAX-6H4-W0078-00-WH	$1.00
Water Pump Repair Kit	PM-6H4-W0078-A0-00	$49.50
WATER PUMP HOUSING (REC663-44311-02)	REC663-44311-02	$28.05
WATER PUMP SERVICE KIT (REC6H4-W0078-00)	REC6H4-W0078-00	$28.05
Complete Water Pump Kit (12287)	12287	$66.66
Water Pump Service Kit (12064)	12064	$40.40
Yamaha Water Pump Kits w/Housing	18-3408	$0.00
Sierra 3429 Yamaha Water Pump Repair Kit	18-3429	$0.00

Flat $9.95 Shipping on ALL parts orders

Water Pump Repair Kit 6H4-W0078-A0-00

Product Description

Discounted Products

Product Questions 1

24 Product Reviews

Parts Fitment

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Aftermarket Interchange

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