SPRING INTO SAVINGS: 10-50% discount on all OEM parts!

Unless prohibited by manufacturer. Does not include aftermarket products. Priced as marked.

Trusted Since 2005★★★★★ 4.7/5 Stars
My Account
& Order Status
Contact Us

PartsPak.com orders will be processed and fulfilled by Crowley Outdoors. For support please call (800) 580-0720.

Flat $9.95 Shipping on ALL parts orders

We offer flat $9.95 shipping on ALL parts orders. (Complete Engines, Lower Units, Sterndrives, and Oversize items excluded). In addition, orders over $89 have reduced cost express shipping available at checkout.

shipping mapshipping map legend

You can get a rough idea of standard transit times from the map above.

Thermostat Unit
Yamaha Motors

Thermostat Unit 54P-H3591-00-00

Genuine OEM product
A newer version is available: 52B-H3591-00-00
No longer available
Search Nationwide Inventory
Check other dealers for availability.
No dealers found.
Dealer inventory search is provided as a service and may not reflect real-time availability.
  • This is an OEM part manufactured by Yamaha Motors
  • 30 day return policy
Yamaha Motors logo

Discounted Products

See all discounted products
Our verified social media accounts

Beware of impersonators

Product Questions 0

Don't hesitate to ask a question. It will be answered by our support staff or a fellow boater.

Parts Fitment

Please verify fitment before ordering.

BrandProduct LineModel2007200820092010201120122013201420152016201720182019
Yamaha MotorsATVYFM450
Yamaha MotorsATVYXE850
Yamaha MotorsATVYXF850
Yamaha MotorsCruiserXVS900
Yamaha MotorsCruiserXVS950
Yamaha MotorsDirt BikeWR250
Yamaha MotorsDirt BikeWR450
Yamaha MotorsDirt BikeYZ250
Yamaha MotorsDirt BikeYZ450
Yamaha MotorsMaxi-ScooterMXT850
Yamaha MotorsMaxi-ScooterNMAX125
Yamaha MotorsMaxi-ScooterXP530
Yamaha MotorsScooterAF115
Yamaha MotorsScooterAL115
Yamaha MotorsScooterCZD300
Yamaha MotorsScooterGPD125
Yamaha MotorsScooterGPD150
Yamaha MotorsScooterLNS125
Yamaha MotorsScooterLNX125
Yamaha MotorsScooterLNY125
Yamaha MotorsScooterNXC125
Yamaha MotorsScooterT115
Yamaha MotorsScooterT150
Yamaha MotorsScooterXC100
Yamaha MotorsScooterXC125
Yamaha MotorsScooterXP530
Yamaha MotorsScooterYW125
Yamaha MotorsSnowmobileSRS10
Yamaha MotorsSport BikeMT125
Yamaha MotorsSport BikeXSR700
Yamaha MotorsSport BikeXSR900
Yamaha MotorsSport BikeYZF-R1
Yamaha MotorsSport BikeYZF-R125
Yamaha MotorsSport BikeYZF-R15
Yamaha MotorsSport BikeYZF-R25
Yamaha MotorsSport BikeYZF-R3
Yamaha MotorsSport BikeYZF155
Yamaha MotorsStreet BikeCZD250
Yamaha MotorsStreet BikeCZD300
Yamaha MotorsStreet BikeFJ09
Yamaha MotorsStreet BikeFZ07
Yamaha MotorsStreet BikeFZ09
Yamaha MotorsStreet BikeFZ150
Yamaha MotorsStreet BikeFZN150
Yamaha MotorsStreet BikeGDR155
Yamaha MotorsStreet BikeGDS125
Yamaha MotorsStreet BikeGPD125
Yamaha MotorsStreet BikeGPD150
Yamaha MotorsStreet BikeLNC125
Yamaha MotorsStreet BikeLNR125
Yamaha MotorsStreet BikeMT-07
Yamaha MotorsStreet BikeMT-09
Yamaha MotorsStreet BikeMT07
Yamaha MotorsStreet BikeMT09
Yamaha MotorsStreet BikeMT250
Yamaha MotorsStreet BikeMT320
Yamaha MotorsStreet BikeMTM690
Yamaha MotorsStreet BikeMTM850
Yamaha MotorsStreet BikeMTN1000
Yamaha MotorsStreet BikeMTN250
Yamaha MotorsStreet BikeMTN320
Yamaha MotorsStreet BikeMTN690
Yamaha MotorsStreet BikeMTN850
Yamaha MotorsStreet BikeMTT690
Yamaha MotorsStreet BikeMTT850
Yamaha MotorsStreet BikeSR400
Yamaha MotorsStreet BikeTFX150
Yamaha MotorsStreet BikeVXN150
Yamaha MotorsStreet BikeVXN155
Yamaha MotorsStreet BikeYB125
Yamaha MotorsStreet BikeYBR125
Yamaha MotorsStreet BikeYZF155

Supersession Chain

NameSKUSuperseding SKU
Thermostat Unit52B-H3591-00-00Current
Thermostat Unit4P9-83591-00-00Current
Thermostat Unit(viewing)54P-H3591-00-00Current