ACDelco® 131-158 - GM Original Equipment™ Engine Coolant Thermostat

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Product Details

GM Original Equipment™ Engine Coolant Thermostat (131-158) by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed stringent industry standards.


Opening Temperature: 180 Deg. F
Gasket Color: Black
Gasket Center Bore Diameter: 2.12 in
Thermostat Diameter: 2.28 in
Thermostat Height: 1.87 in
Jiggle Pin Weep Hole: No
Gasket Material: Rubber
Mount Hole Quantity: 0
Temperature (F): 180 Degrees


  • Designed to deliver trouble-free, consistent performance
  • Right for your vehicle and lifestyle
  • Made from high-quality materials for ultimate durability
  • Manufactured to meet or exceed strict quality requirements

ACDelco is here with excellent products that are available at a competitive price. The company does its utmost to provide the best possible solutions for your needs. All products by ACDelco are made with expert care and created by professionals to meet all your requirements. The company does not accept compromises when it is going about quality, so you can be sure that all products have only first-rate quality. With many years of manufacturing experience, ACDelco is the name you can trust.

ACDelco®, a brand of GM Customer Care and Aftersales, is a global automotive manufacturer of premium replacement parts for almost all vehicle systems as well as off-road, industrial, and marine equipment. With more than hundred years of manufacturing experience, the company offers an extensive line of brake pads and rotors, belts and hoses, shocks and struts, alternators and starters, thermostats and caps, fuel pumps, and many more trustworthy and top-quality products.

Part Number:


Most ACDelco OE and Professional lines are covered under a 24-Month/Unlimited Mile Warranty.

24 Month/Unlimited Mile Limited Warranty:

  • OE Engine Components
  • OE Steering and Driveline
  • OE and Professional Air Conditioning
  • OE and Professional Air Filters
  • OE and Professional Alternators and Starters
  • OE and Professional Brakes
  • OE and Professional Emission
  • OE and Professional Fuel Filters
  • OE and Professional Ignition
  • OE and Professional Thermostats and Caps
  • OE and Professional TPMS
  • OE and Professional Oil Filters
  • OE and Professional Transmission Filters
  • OE and Professional Water Pumps
  • Professional Conventional Spark Plugs
  • Professional Glow Plugs
  • Professional Window Regulators
  • Professional Wires and Cables
  • Professional and Specialty Wipers
  • Specialty Heavy-Duty Filters
  • Specialty Marine Spark Plugs

Limited Lifetime Warranty:

  • OE Electric Fuel Pumps
  • OE Wheel Hub Bearings
  • OE Radiators
  • OE and Professional Shocks and Struts
  • OE and Professional Wire Sets
  • Professional and Specialty Belts and Hoses
  • Professional Chassis

12 Month/Unlimited Mile Limited Warranty:

  • Advantage Bearings
  • Advantage Brakes
  • Advantage Chassis
  • Advantage Shocks
  • Advantage Wipers
  • Engine Cooling Fan Motor

Other Warranties:

3 Year/100,000 Mile Limited Warranty (whichever comes first):

  • GM Cataloged Automatic Transmissions
  • GM Cataloged Engines
  • GM Cataloged Transfer Cases

3 year/Unlimited Mile Limited Warranty:

  • RAPIDFIRE Performance Platinum Spark Plugs.

7 year/Unlimited Mile Limited Warranty:

  • Professional Double Platinum Spark Plugs
  • Professional Iridium Spark Plugs

What Is not covered by this Warranty:

You must pay for any non-warranty service you order to be performed at the same time as any warranty service. This warranty will not apply to your repaired vehicle if it has been damaged by abnormal use, misuse, neglect, accident, alteration or "tampering with" (by other than the Facility or Facility employees). The Facilities employees and/or agents do not have authority to modify the terms of this warranty, nor to make any promises in addition to those contained within this warranty. This warranty does not in any way include incidental or consequential damages (additional expenses which you may incur as the result of faulty repair or service). Some states do not allow the exclusion or limitation of incidental or consequential damage, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state.

This warranty does not cover repair(s) or service(s) except as listed in the section, "What is Covered by this Warranty," even though the Facility may offer other services. Specifically excluded are any battery, engine, transmission, clutch, or differential repairs, associated gaskets and seals, or assembly replacement of the same. Also excluded are auto body, paint, molding, glass repairs, tires, and used parts. Commercial vehicles are excluded.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

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Low Prices Price match guarantee
Guaranteed Fitment Always the correct part
In-House Experts We know our products
Easy Returns Quick & Hassle Free

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