2003 GMC Sierra 1500 HD Thermostat Housings

Your 2003 GMC Sierra 1500 HD might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Thermostat Housings you desperately need.

We currently carry 2 Thermostat Housings to choose from for your 2003 GMC Sierra 1500 HD, and our inventory prices range from as little as $35.49 up to $54.99.

On top of low prices, Advance Auto Parts offers 2 different trusted brands of Thermostat Housings for the 2003 GMC Sierra 1500 HD. We only sell parts from trusted brands like Dorman so that you can find quality parts you can count on.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Thermostat Housings stock in-person!

Thermostat Housings for Your 2003 GMC Sierra 1500 HD

Dorman – Coolant Housing/Water Outlet: With Housing, 30 Degree Neck Angle (Part No.902-836)

Coolant Housing/Water Outlet: With Housing, 30 Degree Neck Angle

from

$35.49
This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

Product Features:
  • Ideal replacement – this engine coolant thermostat housing directly replaces the original housing on specified vehicle years, makes and models
  • Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
  • Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
  • Industry-leading design – professionally engineered by the aftermarket leader in replacement thermostat housings
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Carquest Premium – Engine Coolant Thermostat Housing (Part No.85254)

Engine Coolant Thermostat Housing

from

$54.99
High quality OE replacement part with all components needed to complete the job

Product Features:
  • Meets and/or exceeds OEM standard
  • Includes quality gasket or O-ring  to ensure proper seal (where applicable
  • Coated with corrosion and rust inhibitor
  • 100% leak tested
  • Direct-fit replacement for ease of installation
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