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GM Genuine Parts 15-11057 Engine Coolant Thermostat Water Inlet Assembly

  • Based on 949 reviews
Condition: New
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Availability: Only 6 left in stock, order soon!
Fulfilled by Amazon

Arrives Tuesday, Apr 8
Order within 11 hours and 32 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; Thermostat Material: Steel

Description

GM Genuine Parts Engine Coolant Thermostate Housing Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Brand: GM


Material: Basic


Item Weight: 10.56 Ounces


Vehicle Service Type: Basic


Weight Class: one


Manufacturer: ‎ACDelco


Brand: ‎GM


Model: ‎Water Inlet Assembly


Item Weight: ‎10.6 ounces


Product Dimensions: ‎6.2 x 4.1 x 4.1 inches


Country of Origin: ‎China


Item model number: ‎15-11057


Exterior: ‎Machined


Manufacturer Part Number: ‎15-11057


OEM Part Number: ‎12600172


Date First Available: October 27, 2009


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Apr 8

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


  • Works good
gaskets too
Reviewed in the United States on October 20, 2023 by Amazon Customer

  • Perfect fit and replacement
Installed very easily. Added some gasket paste to ensure a great seal.
Reviewed in the United States on September 29, 2023 by FTroxell

  • Perfect fit for an F-body water pump!
Installed this on my LS 5.3 swap that I’m using for my C10. I ordered a F-body water pump and realized that it didn’t have a thermostat housing with it and this fit perfectly! GM genuine parts!!
Reviewed in the United States on August 11, 2023 by Wayne L. Wayne L.

  • Works
Fit the truck and works
Reviewed in the United States on July 13, 2023 by David leyva

  • Needs bolts but still perfect
Fit was perfect for my truck, just wish it came with bolts, I snapped a bolt tightening it down, lucky I got it out with no drilling.
Reviewed in the United States on May 20, 2023 by Bryan S Lauer

  • Great product
Would recommend changing with water pump great item fast shipping great price
Reviewed in the United States on July 17, 2023 by lightbulb

  • Perfect
This is the NEWER design thermostat and inlet. It pairs perfectly with the AC Delco 251-743 which is not the stock water pump on all 99-06 GM trucks so pay attention to what you have. This does come with a built in gasket and the actual thermostat. This does not come with new bolts (not advertised to). Torque spec for the 2 bolts: 11 ft/lbs. ... show more
Reviewed in the United States on December 13, 2022 by Abel Ring

  • New bolts not included
Easy assembly that bolts right on to the water pump - easy peasy. Only problem I ran into was that one of the original thermostat housing bolts snapped while torquing things down with a torque wrench. It took about 90 minutes to visit 3 parts stores to find a place that had the right size, thread pitch and length in stock. Considering GM's cost on those bolts is likely just a penny or two, I would have appreciated having new ones included in the packaging. Also, just to note that this seems to be a 187* thermostat. I didn't see that listed in the product info, on the box or stamped on the thermostat itself. This is most likely the same as what came in your vehicle new from the factory. ... show more
Reviewed in the United States on July 5, 2021 by C. Chapman

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