OEM 2021 GMC Sierra 3500 HD Head Gasket

Engine Cylinder Head Gasket

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4 Head Gaskets found

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2021 GMC Sierra 3500 HD Gasket, Cyl Hd (Grade "A")
Part Number: 12676857
$53.73 MSRP: $84.16
You Save: $30.43 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Head Gasket
- Replaced by: 12727484
- Item Weight: 1.30 Pounds
- Item Dimensions: 9.1 x 22.5 x 0.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12676857
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2021 GMC Sierra 3500 HD Submodels:
- AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
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2021 GMC Sierra 3500 HD Gasket, Cyl Hd (Grade "B").
Part Number: 12676858
$61.95 MSRP: $97.03
You Save: $35.08 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Head Gasket
- Replaced by: 12727485
- Item Weight: 1.30 Pounds
- Item Dimensions: 9.3 x 22.5 x 0.2 inches
- Condition: New
- Require Quantity: 2
- SKU: 12676858
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2021 GMC Sierra 3500 HD Submodels:
- AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
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2021 GMC Sierra 3500 HD Gasket, Cyl Hd (Grade "C").
Part Number: 12676859
$69.79 MSRP: $109.33
You Save: $39.54 (37%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Head Gasket
- Replaced by: 12727486
- Item Weight: 1.30 Pounds
- Item Dimensions: 9.3 x 22.0 x 0.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12676859
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2021 GMC Sierra 3500 HD Submodels:
- AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
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2021 GMC Sierra 3500 HD Gasket, Cyl Hd
Part Number: 12688186
$70.27 MSRP: $110.07
You Save: $39.80 (37%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Head Gasket
- Item Weight: 1.20 Pounds
- Item Dimensions: 22.1 x 9.1 x 0.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12688186
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2021 GMC Sierra 3500 HD Submodels:
- AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS

2021 GMC Sierra 3500 HD Head Gasket

Achieve unprecedented performance experience with our genuine 2021 GMC Sierra 3500 HD Head Gasket. All our parts are engineered for a perfect fit and maximum durability to ensure that your Sierra 3500 HD returns to factory condition. Specially designed for the 2021 GMC Sierra 3500 HD, this Head Gasket offers superior reliability and ease of installation for anyone.

With a comprehensive array of OEM 2021 GMC Sierra 3500 HD Head Gasket, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2021 GMC Sierra 3500 HD Head Gasket are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.