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Replacement and OEM Parts for 2018 GMC Sierra 3500 HD Thermostat Housing

2018 GMC Sierra 3500 HD Thermostat Housing

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2018 GMC Sierra 3500 HD
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  • OEM 2018 GMC Sierra 3500 HD Thermostat Unit Diagram - 12587395
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    OEM (Genuine) 2018 GMC Sierra 3500 HD Thermostat Unit

    PartNumber: 12587395
    OEM 2018 GMC Sierra 3500 HD Thermostat Unit - 12587395
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; 6.0l; Inlet
    • Item Dimensions: 4.0 x 4.2 x 4.1 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 3500 HD Thermostat Unit
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L GAS
    $9.25 MSRP: $16.72
    You Save: $7.47 (45%)
  • OEM 2018 GMC Sierra 3500 HD Thermostat Housing Diagram - 12643796
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Thermostat Housing

    PartNumber: 12643796
    OEM 2018 GMC Sierra 3500 HD Thermostat Housing - 12643796
    Product Specifications
    • Notes: 6.6 Liter Diesel; Silverado, Sierra; 6.6l
    • Other Names: Thermostat Housing
    • Item Dimensions: 9.3 x 6.4 x 21.8 inches
    • Item Weight: 4.00 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12693295
    • Part Description: 2018 GMC Sierra 3500 HD Thermostat Housing
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $110.92 MSRP: $209.30
    You Save: $98.38 (48%)
  • Gates Engine Coolant Water Outlet for 2018 GMC Sierra 3500 HD - CO34829

    Gates® Engine Coolant Water Outlet for 2018 GMC Sierra 3500 HD

    PartNumber: CO34829
    Product Specifications
    • Notes: Thermostat Cover
    • By-Pass Holes: No
    • Material: Cast Aluminum
    • Number of Bolt Holes: 2
    • Number of Gaskets: 0
    • Number of Seals: 0
    • OE Exact: Yes
    • Outlet Inside Diameter 1: 1.177"
    • Outlet Outside Diameter 1: 1.548"
    • Type: Coolant Outlet
    • UPC: 770075733751
    • Part Description: 2018 GMC Sierra 3500 HD Engine Coolant Water Outlet
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $13.06
  • Four Seasons Engine Coolant Water Outlet W O Thermostat for 2018 GMC Sierra 3500 HD - 85945

    Four Seasons® Engine Coolant Water Outlet W O Thermostat for 2018 GMC Sierra 3500 HD

    PartNumber: 85945
    Product Specifications
    • Notes: Outlet
    • Gasket or Seal Included: Not Included
    • Inlet Dia. IN: 1.205
    • Material: Aluminum
    • Maximum Height: 2.425
    • Meets / Exceeds OEM: Yes
    • Mnt Flange Width IN: .378
    • Style: w/o Thermostat
    • Thermostat Included: Not Included
    • UPC: 096361859456
    • Part Description: 2018 GMC Sierra 3500 HD Engine Coolant Water Outlet W O Thermostat
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $9.15