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Pontiac 10019090 Engine Coolant Thermostat Housing

1982-1986 Pontiac Firebird

Customer Questions & Expert Answers (3)
10019090 GM Engine Coolant Thermostat Housing Illustration 1 of 1
  • Part Description
    HOUSING, Engine Coolant Thermostat
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Pontiac
    Manufacturer Part Number10019090
    Part DescriptionHOUSING, Engine Coolant Thermostat
    Other NamesThermostat Housing
    Item Dimensions4.8 x 5.3 x 3.2 inches
    Item Weight1.20 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU10019090
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    1982-1986 Pontiac Firebird4 Cyl 2.5L2 DOOR
  • Customer Questions & Expert Answers

    Q:
    I'm wondering if this is complete and correct part for my vehicle.
    A:
    You can Select Your Vehicle to check if 10019090 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How can you determine if the Thermostat is stuck closed of the 1986 Chevrolet Astro? Posted by Bernard Y.
    A:
    If the engine runs too hot and the upper radiator hose is not hot, it indicates that the thermostat is stuck closed and needs to be replaced. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Mar 15, 2026
    Q:
    What should you do after separating the Thermostat housing from the engine for the 1983 Pontiac Firebird? Posted by Katelund D.
    A:
    Remove the thermostat and take note of its orientation. Clean the old gasket residue from both the thermostat housing and the engine sealing surface. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Aug 17, 2025

Genuine GM Part 10019090, the Right Choice

To ensure reliability, purchase GM part # 10019090 Engine Coolant Thermostat Housing. It is sometimes referred to as Pontiac Thermostat, Pontiac Thermostat Housing. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Pontiac Firebird models.

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