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ACDelco GM Original Equipment 131-151 Engine Coolant Thermostat

  • Based on 1,319 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jul 22
Order within 15 hours and 11 minutes
Available payment plans shown during checkout

Features

  • Control the flow of coolant through the radiator to enable the engine to reach and maintain its normal operating temperature
  • GM-recommended replacement part for your GM vehicles original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function

Description

An ACDelco GM Original Equipment Engine Coolant Thermostat is a temperature controlled valve located in the engine coolant outlet to, or the inlet from, the radiator, and is a GM-recommended replacement for your vehicle’s original component. It controls the flow of coolant through the radiator to enable the engine to reach and maintain its normal operating temperature. This original equipment engine coolant thermostat has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Brand: ACDelco


Model Name: 131-151 Engine


Color: Black


Specific Uses For Product: Automotive repair or replacement


null: Cooling


Specific Uses For Product: Automotive repair or replacement


Backlight: No


Item Dimensions LxWxH: 3 x 3 x 3 inches


Item Weight: 0.17 Pounds


Color: Black


Brand: ACDelco


Model: 131-151 Engine


Model Number: 131-151


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Like factory
Still working great
Reviewed in the United States on October 22, 2023 by Donkee702

  • 2000 Chevy S10 ZR2
OEM Replacement. Perfect fit.
Reviewed in the United States on September 7, 2023 by Richard Sauer

  • 2002 S-10 ZR2 extended cab
I don't do car work at all, but watched some youtube videos and was able to replace this relatively easy. Just be very careful not to drop your nuts in your engine bay.
Reviewed in the United States on October 27, 2023 by Amazon Customer

  • Perfect for '99 Chevrolet Silverado 1500 4.3L
No problems, fit perfectly and performs great! If I can't get Genuine GM parts then AC Delco/Delphi are the only replacement parts I will use, and they last much longer than the rest. I've used cheaper parts, there is a place for them, especially when you're in a situation, but they generally will never last as long as Genuine GM/AC Delco/Delphi parts. They are indisputably high quality parts and worth every penny, I wouldn't recommend anything else for a GM automobile. This thermostat has already had quite a few cycles and temperature stays around 208°F consistently and fluctuations in temperature a minimal but nothing out of the ordinary. ... show more
Reviewed in the United States on March 26, 2021 by Joshua Piorier

  • Good T-stat except for the gasket
I wanted an OE stat since mine had been sticking open. The price here is not the greatest and can be found cheaper (including shipping) but I used amazon since I can have it shipped 2nd day for free with prime. Overall it is a good T-stat and high quality. Even though the part is not labled it is a 195F T-stat. My only complain is the rubber seal/gasket is too small for the opening allowing it to move around some when you install it. I did orginally install it with the seal that came with it and it sealed up fine but I wasn't completely satisfied. The next day I went and purchased a felpro 35710 seal at the local auto part store for a buck and change which fit perfect. If your looking for some cheaper Delco options or different temps maybe this might help you out: Part Number: 12T31D Product Notes: Engine Cool Thermostat 180 degree ; Alternate temp Part Number: 12T31E2 Product Notes: Engine Cool Thermostat 195 degree ; Recommended temp ; Incl seal Part Number: 12TP7D Product Notes: Engine Cool Thermostat 180 degree ; Alternate temp Part Number: 12TP7E Product Notes: Engine Cool Thermostat 195 degree ; Recommended temp ... show more
Reviewed in the United States on October 9, 2011 by JJ

  • Good price
Worked great
Reviewed in the United States on August 13, 2023 by John

  • Direct fit
Work like it should. My engine heat runningome it should
Reviewed in the United States on May 7, 2023 by Jesse L. Ritter

  • Keeps me warm in the winter!
Love it best buy 198f temp
Reviewed in the United States on January 15, 2023 by Thomas Torres

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