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Replacement and OEM Parts for 2021 GMC Sierra 3500 HD Thermostat Gasket

2021 GMC Sierra 3500 HD Thermostat Gasket

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2021 GMC Sierra 3500 HD
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  • OEM 2021 GMC Sierra 3500 HD Water Inlet Seal Diagram - 12587397
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    OEM (Genuine) 2021 GMC Sierra 3500 HD Water Inlet Seal

    PartNumber: 12587397
    OEM 2021 GMC Sierra 3500 HD Water Inlet Seal - 12587397
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; 6.6 Liter Gas
    • Item Dimensions: 3.0 x 3.0 x 0.3 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Water Inlet Seal
    More Info
    Vehicle Fitment
    • 2021 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
    $5.49 MSRP: $10.34
    You Save: $4.85 (47%)
  • OEM 2021 GMC Sierra 3500 HD Thermostat Seal Diagram - 12680544
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Thermostat Seal

    PartNumber: 12680544
    OEM 2021 GMC Sierra 3500 HD Thermostat Seal - 12680544
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; 6.6 Liter Diesel, 180 Deg Therm; 6.6 Liter Diesel, 185 Deg Therm
    • Other Names: Gasket, Thermostat Seal
    • Item Dimensions: 2.9 x 2.9 x 0.3 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 97300793, 97231848, 97167477, 98280281
    • Part Description: 2021 GMC Sierra 3500 HD Thermostat Seal
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
    $7.05 MSRP: $12.74
    You Save: $5.69 (45%)
  • OEM 2021 GMC Sierra 3500 HD Thermostat Housing Gasket Diagram - 12643149
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    OEM (Genuine) 2021 GMC Sierra 3500 HD Thermostat Housing Gasket

    PartNumber: 12643149
    OEM 2021 GMC Sierra 3500 HD Thermostat Housing Gasket - 12643149
    Product Specifications
    • Notes: 6.6 Liter Diesel
    • Other Names: Thermostat Housing Gasket
    • Item Dimensions: 5.7 x 3.4 x 0.2 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Thermostat Housing Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $4.54 MSRP: $8.54
    You Save: $4.00 (47%)