Yamaha Motors

Lower Unit Gasket Kit 6H4-W0001-21-00

Country of Origin:

Japan

Satisfaction rating

Genuine OEM product

Product	Price	Rating	Comment
Yamaha Motors 6H4-W0001-21-00 Lower Unit Gasket Kit (viewing this product) Genuine OEM product	$61.19~~$71.99~~ No longer availableSearch Nationwide Inventory	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.
Recmar REC6H4-W0001-21 GEAR HOUSING SEAL KIT (REC6H4-W0001-21) Aftermarket product	$49.89~~$55.43~~ In stock Only 2 remaining	Good	Kit contents and the Interface Performance Materials gaskets appear identical to the EMP kit, suggesting a shared supplier. It should work as a replacement, but the non-OEM seals/O-rings from Taiwan remain the primary unknown versus the factory kit.
Kit contents and the Interface Performance Materials gaskets appear identical to the EMP kit, suggesting a shared supplier. It should work as a replacement, but the non-OEM seals/O-rings from Taiwan remain the primary unknown versus the factory kit.
EMP 26-00312 Lower Unit Seal Kit Aftermarket product	$46.74~~$54.99~~ In stock Only 2 remaining	Good	Includes the full complement of seals/O-rings and uses Interface Performance Materials for the large case gaskets, which is a plus for gasket consistency. The sealing components are from non-OEM sources and Taiwan-made, so seal compound/lip quality may not match the factory kit over time.
Includes the full complement of seals/O-rings and uses Interface Performance Materials for the large case gaskets, which is a plus for gasket consistency. The sealing components are from non-OEM sources and Taiwan-made, so seal compound/lip quality may not match the factory kit over time.
GLM Marine 87812 Gearcase Seal Kit (87812) Aftermarket product	$34.95~~$43.69~~ In stock Only 2 remaining	Good	Covers the same seal and gasket set as OEM, but the main large gasket appears to use a steel core rather than the OEM-style composite. That construction change can affect crush/compliance and corrosion resistance, making it a functional replacement but with more fit/durability uncertainty than OEM.
Covers the same seal and gasket set as OEM, but the main large gasket appears to use a steel core rather than the OEM-style composite. That construction change can affect crush/compliance and corrosion resistance, making it a functional replacement but with more fit/durability uncertainty than OEM.

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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-W0001-21-00 Lower Unit Gasket Kit (viewing this product) Genuine OEM product	$63.09~~$70.10~~ No longer availableSearch Nationwide Inventory	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.
Recmar REC6H4-W0001-21 GEAR HOUSING SEAL KIT (REC6H4-W0001-21) Aftermarket product	$49.89~~$55.43~~ In stock Only 2 remaining	Good	Kit contents and the Interface Performance Materials gaskets appear identical to the EMP kit, suggesting a shared supplier. It should work as a replacement, but the non-OEM seals/O-rings from Taiwan remain the primary unknown versus the factory kit.
Kit contents and the Interface Performance Materials gaskets appear identical to the EMP kit, suggesting a shared supplier. It should work as a replacement, but the non-OEM seals/O-rings from Taiwan remain the primary unknown versus the factory kit.
EMP 26-00312 Lower Unit Seal Kit Aftermarket product	$46.74~~$54.99~~ In stock Only 2 remaining	Good	Includes the full complement of seals/O-rings and uses Interface Performance Materials for the large case gaskets, which is a plus for gasket consistency. The sealing components are from non-OEM sources and Taiwan-made, so seal compound/lip quality may not match the factory kit over time.
Includes the full complement of seals/O-rings and uses Interface Performance Materials for the large case gaskets, which is a plus for gasket consistency. The sealing components are from non-OEM sources and Taiwan-made, so seal compound/lip quality may not match the factory kit over time.
GLM Marine 87812 Gearcase Seal Kit (87812) Aftermarket product	$34.95~~$43.69~~ In stock Only 2 remaining	Good	Covers the same seal and gasket set as OEM, but the main large gasket appears to use a steel core rather than the OEM-style composite. That construction change can affect crush/compliance and corrosion resistance, making it a functional replacement but with more fit/durability uncertainty than OEM.
Covers the same seal and gasket set as OEM, but the main large gasket appears to use a steel core rather than the OEM-style composite. That construction change can affect crush/compliance and corrosion resistance, making it a functional replacement but with more fit/durability uncertainty than OEM.

Product Description

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

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Parts Fitment

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Supersession Chain

Name	SKU	Superseding SKU
Lower Unit Gasket KitViewing this product	6H4-W0001-21-00	Current

Aftermarket Interchange

Name	SKU	Price	Brand
Lower Unit Seal Kit	26-00312	$46.74	EMP
Gearcase Seal Kit (87812)	87812	$34.95	GLM Marine
GEAR HOUSING SEAL KIT (REC6H4-W0001-21)	REC6H4-W0001-21	$49.89	Recmar

Brand	Product Line	Model
Yamaha Motors	International	25
Yamaha Motors	International	40
Yamaha Motors	International	50
Yamaha Motors	Outboard	40
Yamaha Motors	Outboard	50