Genuine 2021 GMC Sierra Cylinder Head

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9 Cylinder Heads found

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2021 GMC Sierra Cylinder Head Assembly
Part Number: 12629342
$402.80 MSRP: $666.67
You Save: $263.87 (40%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Head Assembly, Cyl; Cylinder Head
- Replaced by: 12677840
- Item Weight: 26.30 Pounds
- Item Dimensions: 26.4 x 8.0 x 12.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12629342
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2021 GMC Sierra Submodels:
- 1500 CREW CAB, 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON, CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 6 Cyl 4.3L
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2021 GMC Sierra Head Assembly, Cyl (W/ Vlv)
Part Number: 12699617
$340.29 MSRP: $537.85
You Save: $197.56 (37%)
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Product Specifications
- Other Name: Cylinder Head
- Replaces: 12678972, 12620544, 12678633, 12620545
- Item Weight: 25.80 Pounds
- Item Dimensions: 25.2 x 15.7 x 10.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12699617
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2021 GMC Sierra Submodels:
- 1500 CREW CAB, 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, CREW CAB 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON | 8 Cyl 6.2L
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2021 GMC Sierra Head Assembly, Cyl (W/ Vlv)
Part Number: 12698290
$356.43 MSRP: $563.34
You Save: $206.91 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Cylinder Head
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12698290
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2021 GMC Sierra Submodels:
- CREW CAB 5'8" BOX 1/2 TON, Crew Cab 6'6" Box 1/2 Ton, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON | 8 Cyl 6.2L
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2021 GMC Sierra Head Assembly, Cyl (W/ Vlv)
Part Number: 12703610
$422.39 MSRP: $667.45
You Save: $245.06 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Cylinder Head
- Replaces: 12672799, 12699618
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12703610
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2021 GMC Sierra Submodels:
- CREW CAB 1 TON CHASSIS 137.0, CREW CAB 6'6" BOX 1 TON, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 1 TON, CREW CAB 8' BOX 3/4 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 1 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CREW CAB 1 TON CHASSIS 161.5, REGULAR CAB 1 TON CHASSIS 137.0, REGULAR CAB 1 TON CHASSIS 161.5, REGULAR CAB 8' BOX 1 TON, REGULAR CAB 8' BOX 3/4 TON | 8 Cyl 6.6L
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2021 GMC Sierra Head Assembly, Cyl (Mchg)
Part Number: 12702633
$218.17 MSRP: $344.76
You Save: $126.59 (37%)
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Product Specifications
- Other Name: Cylinder Head
- Item Weight: 33.70 Pounds
- Item Dimensions: 25.2 x 15.8 x 10.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12702633
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2021 GMC Sierra Submodels:
- 2500 CREW CAB STANDARD BOX, 2500 REGULAR CAB, 2500 REGULAR CAB STANDARD BOX, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CREW CAB 1 TON CHASSIS 137.0, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 1 TON, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 1 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 1 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CREW CAB 1 TON CHASSIS 161.5, REGULAR CAB 1 TON CHASSIS 137.0, REGULAR CAB 1 TON CHASSIS 161.5, REGULAR CAB 8' BOX 1 TON, REGULAR CAB 8' BOX 3/4 TON | 8 Cyl 6.6L Diesel
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2021 GMC Sierra HEAD ASM-CYL (W/ VLV)
Part Number: 12729680
$989.46 MSRP: $1570.96
You Save: $581.50 (38%)
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Product Specifications
- Other Name: Cylinder Head
- Replaced by: 12733805
- Condition: New
- SKU: 12729680
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2021 GMC Sierra Submodels:
- CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 4 Cyl 2.7L
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2021 GMC Sierra HEAD ASM-CYL (W/ VLV)
Part Number: 40009167
$604.08 MSRP: $959.10
You Save: $355.02 (38%)
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Product Specifications
- Other Name: Cylinder Head
- Replaces: 40009050, 55514596
- Condition: New
- SKU: 40009167
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2021 GMC Sierra Submodels:
- CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON | 6 Cyl 3.0L Diesel
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2021 GMC Sierra Head Assembly, Cyl (W/ Vlv)
Part Number: 12698289
$240.38 MSRP: $379.92
You Save: $139.54 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Cylinder Head
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 12698289
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2021 GMC Sierra Submodels:
- CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, Crew Cab 6'6" Box 1/2 Ton, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 8 Cyl 5.3L
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2021 GMC Sierra Head Assembly, Cyl (W/ Vlv)
Part Number: 12699616
$515.58 MSRP: $816.09
You Save: $300.51 (37%)
Product Specifications
- Other Name: Cylinder Head
- Replaces: 12677841, 12620209
- Condition: New
- Require Quantity: 2
- SKU: 12699616
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following 2021 GMC Sierra Submodels:
- 1500 CREW CAB, 1500 CREW CAB STANDARD BOX, 1500 DOUBLE CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CREW CAB 1/2 TON, CREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 8 Cyl 5.3L, 8 Cyl5.3L

2021 GMC Sierra Cylinder Head

We are your prime source for competitively priced and high-quality OEM 2021 GMC Sierra Cylinder Head. We provide you with parts that will allow you to save a lot of money without sacrificing quality. All our OEM parts are backed by the manufacturer's warranty and shipped out at a swift rate.

Related 2021 GMC Sierra Parts

Alternate Year Models

2020 GMC Sierra Cylinder Head 2022 GMC Sierra Cylinder Head