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GM Genuine Parts 15-10412 Engine Coolant Thermostat Water Inlet Assembly

  • Based on 214 reviews
Condition: New
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$30.02 Why this price?
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Eligible for Return, Refund or Replacement within 30 days of receipt

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Availability: Only 6 left in stock, order soon!
Fulfilled by Amazon
Arrives Saturday, May 31
Order within 20 hours and 37 minutes
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Features

  • Repairs leaking thermostat housings
  • Corrects engine overheating caused by failed thermostat
  • 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

ACDelco GM Original Equipment Engine Coolant Thermostat/Water Inlet Assemblies contain the engine thermostat and water inlet housing and are GM-recommended replacements for your vehicle’s original components. The engine coolant thermostat controls the flow of coolant through the radiator to enable the engine to reach and maintain its normal operating temperature. The water inlet housing connects the radiator hoses to the thermostat. For certain applications, the water inlet contains threaded holes or ports for sensors and switches. These original equipment engine coolant thermostat/water inlet assemblies have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Manufacturer: ‎ACDelco


Brand: ‎GM


Model: ‎Engine Coolant Thermostat


Item Weight: ‎10.4 ounces


Product Dimensions: ‎6.2 x 4.1 x 4.1 inches


Country of Origin: ‎China


Item model number: ‎15-10412


Exterior: ‎Machined


Manufacturer Part Number: ‎15-10412


OEM Part Number: ‎12571261


Date First Available: September 20, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 31

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.

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Top Amazon Reviews

    • The only choice for 99-02 thermostat.
I had bought a thermostat previously from o'reillys a month previous, truck wanted to run 210 normal and 225-230 degrees with AC on. It was supposed to be a 187 degree thermostat as well. Bought this one and compared, night and day difference. Despite driving habits or AC running, and even high outside temperature, my truck never exceeded 200 degrees. And that was with it being 96 degrees ac on and going down the interstate at 75-80 mph. 98 percent of the time it never goes over the 187 degrees. This is the only thermostat to get for your 99-02 chevy silverado. Those have to have housing and thermostat as one piece. Drain the radiator and take the hose off while drain is still open. 20 mins and your done. Oh....dont forget to burp the coolant system, as that will cause overheating too. Water pump installed new 30 days previous. Get it and thank me later. 99 chevy silverado LS Z71 5.3L 4x4. ... show more
Reviewed in the United States on November 5, 2023 by Larry Tollison
    • Fits perfectly and works flawlessly
Hard to beat the OEM parts, never even considered any other brand. Fit perfectly and working flawlessly. OEM parts may cost a little more than some replacements but for quality and fitment and function you cannot go wrong.
Reviewed in the United States on October 1, 2020 by xraypro
    • Good quality GM part
Nice quality GM genuine part. Purchased this when I replaced the water pump on my 2006 Sierra. Fit and works perfectly.
Reviewed in the United States on April 27, 2021 by The music man
    • Works great, was easy to install
Just make sure to read the description on which water pump it fits on/ for compatibility. Works great, was easy to install,
Reviewed in the United States on August 13, 2018 by Suny
    • Easy install
Solved my problem
Reviewed in the United States on November 22, 2022 by Amazon Customer
    • Four Stars
Good value!
Reviewed in the United States on June 12, 2018 by RW
    • Buy this when changing water pump
Buy this and install when changing your water pump! Easy to install on the water pump
Reviewed in the United States on December 30, 2021 by William Oliver
    • Exact fit
Exact fit, and with ac delco I don’t have to worry if it will last.
Reviewed in the United States on October 21, 2021 by Amazon Customer

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