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GM Genuine Parts 131-156 (12600171) Engine Coolant Thermostat without Seal

Based on 261 reviews
Condition: New
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$29.63
Holiday Deal · 1% off was $29.97

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Availability: Only 4 left in stock, order soon!
Fulfilled by Premier Auto Part

Arrives Thursday, Nov 19
Order within 2 hours and 48 minutes

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At a glance

Condition
New
Model
131-156
Dimensions
3"D x 3"W x 3"H
Weight
3.68 oz
Color
Silver
Material
Metal, Plastic
Controller Type
touch
In the box
Thermostat

Features 4

  • 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.

Specs 33

Brand GM GENUINE PARTS
Model Name Thermostat
Product Dimensions 3"D x 3"W x 3"H
Controller Type touch
Special Feature Genuine, OEM part with nationwide warranty at any licensed dealership
Additional Features Genuine, OEM part with nationwide warranty at any licensed dealership
Specific Uses For Product Automotive repair or replacement
Temperature Control Type automatic

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 19

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
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


OEM Product
Thermostat was GM genuine and saved the day. Truck does not over heat anymore. Make sure to buy the seal as it does not come included. I will be definitely buying it again for my other truck.
Reviewed in the United States on January 14, 2025 by Juan Mendez

Good product
Good merchant
Reviewed in the United States on August 2, 2026 by Donald R king jr.

Perfect fit
It is a perfect fit and works flawlessly
Reviewed in the United States on December 23, 2025 by Amazon Customer

Good price good product.
Fit correctly and hasn't given any problems. Good product
Reviewed in the United States on October 31, 2025 by Trey

Worth the extra money to avoid doing it again because of a cheap part.
These is a genuine GM thermostat. I didn't want to take the chance on using a generic brand given the difficulty level of replacing it on a GM van. Lots of stuff has to be removed to get to the thermostat so I wanted to do it once.
Reviewed in the United States on May 9, 2026 by Andersons

Stick with OEM, you won’t be disappointed
OEM is the way to go on GMT800’s… keeps my temperature just where it should be. Fits like OEM because it is OEM. Just a heads up, it does not come with the rubber gasket so buy a felpro while your at it!
Reviewed in the United States on October 20, 2025 by Anna

Good
Good
Reviewed in the United States on January 31, 2026 by Capo

Will not fit 2003 S-10
I may have made a mistake when ordering but it will not fit my 2003 S-10
Reviewed in the United States on July 21, 2024 by Scott e Howard
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