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Chevy Trailblazer Thermostat Replacement

20 Best Chevy Trailblazer Thermostat Replacement of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best Chevy Trailblazer Thermostat Replacement of 2023. Check our ranking below.

2,863 Reviews Scanned

SaleRank No. #1
Thermostat Housing Replacement for Rainier Trailblazer Envoy Ascender Bravada 9-7X L6 4.2L 2002-2009
  • 1. Thermostat Housing replacement for Rainier L6 4.2L 2004-2007, replacement for Trailblazer L6 4.2L 2002-2009.
  • 2. Thermostat Housing replacement for Envoy L6 4.2L 2002-2009, replacement for Envoy XL L6 4.2L 2002-2006, replacement for Envoy XUV L6 4.2L 2004-2005.
  • 3. Thermostat Housing replacement for Ascender L6 4.2L 2003-2007, replacement for Bravada L6 4.2L 2002-2004, replacement for 9-7X L6 4.2L 2007-2009
  • 4. Direct replacement for a proper fit and easy installation.
  • 5. Please check all details of the product before purchasing the item
Rank No. #2
Aluminum Engine Coolant Thermostat Housing Assembly Compatible with GMC Envoy Oldsmobile Bravada Buick Rainier Chevy Blazer Trailblazer Saab 9-7x Isuzu Ascender 4.2L L6 2002-2009 OE 12620112
  • Engine Coolant Thermostat Housing Assembly compatible with 2004-2007 Buick Rainier L6 4.2L, 2002 Chevrolet Blazer L6 4.2L, 2002-2009 Chevrolet Trailblazer L6 4.2L, 2002-2006 Chevrolet Trailblazer EXT L6 4.2L, 2002-2009 L6 GMC Envoy L6 4.2L, 2002-2006 GMC Envoy XL L6 4.2L, 2004-2005 GMC Envoy XUV L6 4.2L, 2002-2004 Oldsmobile Bravada L6 4.2L, 2005-2009 Saab 9-7x L6 4.2L, 2003-2007 Isuzu Ascender 4.2L L6 (See picture for model details. Message us on Amazon if you unsure the fitment)
  • Engine: 4.2L L6 engine coolant thermostat housing assembly
  • What You Can Get: Thermostat housing assembly comes with thermostat, Gasket. Thermostat Opening Temperature: 190.4 °F
  • Upgrade Quality: Aluminum thermostat assembly made of premium quality aluminum to provide maximum durability and excellent performance
  • Service: Please check the vehicle model and year carefully before purchasing. Any problems or advices, please message us via Amazon
Rank No. #3
Dorman 902-800 Engine Coolant Thermostat Housing Assembly Compatible with Select Models
  • Ideal replacement - this engine coolant thermostat housing assembly directly replaces the original water outlet on specified vehicle years, makes and models
  • Durable construction - this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
  • Century of experience - for over 100 years, Dorman Products has provided quality automotive replacement parts to its customers
  • Industry-leading design - professionally engineered by the aftermarket leader in replacement thermostat housing assemblies
  • Ensure fit - Input your vehicle into the garage tool and check Confirmed Fit bar at the top of the page. If there is an “i” in a blue circle, additional verification is needed. Please hover over the "i" to verify fitment notes match your vehicle
Rank No. #4
labwork Thermostat Housing 12572988 Replacement for Chevy Envoy Replacement for Buick Rainier 4.2L
  • Part number: 12572988, 12620112
  • Replacement for Buick Rainier 2004-2007, Replacement for Chevy Trailblazer 2002-2009, Replacement for GMC Envoy 2002-2009, Replacement for GMC Envoy XL 2002-2006, Replacement for GMC Envoy XUV 2004-2005, Replacement for Isuzu Ascender 2003-07, Replacement for Olds Bravada 2002-2004
  • High quality aluminum, not easy to break, can withstand temperature impact, long service life
  • Maintaining the engine at the best working temperature can ensure that all parts work together to make the engine in the best working state as soon as possible and reduce engine wear
  • Please check pictures for more details before purchasing
Rank No. #5
Thermostat Housing Assembly, Replace 902-800, 15-11006, 1511006 Compatible with Buick Chevy GMC Hummer Isuzu 4.2L - 2002-2009 Trailblazer, 2002-2009 Envoy, 2004-2007 Rainier, 2003-2008 Ascender, More
  • REPLACEMENT ENGINE THERMOSTAT HOUSING ASSEMBLY : The thermostat housing is located in the engine between the engine and the radiator. When the engine cools off below the operating temperature, the thermostat housing is closed. The common symptoms of a thermostat housing leak are a stuck thermostat valve, an illuminated low coolant warning light, and the P0128 or P0125 code. If the thermostat housing is broken or leaking fluid, it needs to be replaced as soon as you can.
  • COMPATIBLE WITH BUICK, CHEVY, GMC, ISUZU, OLDSMOBILE VEHICLES : 2004-2007 Rainier | 2002-2009 Trailblazer | 2002-2009 Envoy | 2003-2008 Ascender | 2002-2004 Bravada | 2005-2009 9-7x thermostat housing assembly.
  • REPLACES PART # : 902-800, 15-11006, 1511006 thermostat housing assembly. It can compatible with Chevy, GMC, Hummer & Isuzu : 02, 03, 04, 05, 06, 07, 08, 09 Trailblazer & Envoy | 04, 05, 06, 07 Rainier | 03, 04, 05, 06, 07, 08 Ascender. Please check the description to confirm the compatibility before purchase. Thank you!
  • OE FIT, FORM, FUNCTION : Professional, high quality OE style and meet or exceed all original equipment performance replacement thermostat housing assembly. Constructed with premium materials for durability. Brand New and ready to install straight out of the box.
  • FRIENDLY NOTE : If the thermostat housing fails on your vehicle, simply contact us for a replacement. Also if you have any other questions on our this thermostat housing, please contact us at the first time. This is NOT a genuine part, it's a aftermarket replacement part manufactured by Allmotorparts.

Last update on 2025-10-26 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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Romance University provides an Chevy Trailblazer Thermostat Replacement buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Chevy Trailblazer Thermostat Replacement currently available on the market.

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