Genuine 2021 GMC Sierra Valve Cover Gasket

Engine Valve Gasket

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12 Valve Cover Gaskets found

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2021 GMC Sierra Gasket, Valve Rocker Arm Cover
Part Number: 12619787
$4.57 MSRP: $7.19
You Save: $2.62 (37%)
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Product Specifications
- Other Name: GASKET, Engine Camshaft & Valve Rocker Cover; Valve Cover Gasket
- Item Weight: 0.40 Pounds
- Item Dimensions: 20.9 x 5.0 x 0.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12619787
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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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 TON CHASSIS 137.0, 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 TON, CREW CAB 6'6" BOX 1/2 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 1/2 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 1 TON, EXTENDED CAB 8' BOX 1/2 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 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1 TON, REGULAR CAB 8' BOX 1/2 TON, REGULAR CAB 8' BOX 3/4 TON | 8 Cyl 5.3L, 8 Cyl 6.2L, 8 Cyl 6.6L, 8 Cyl5.3L
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2021 GMC Sierra Gasket, Valve Rocker Arm Cover
Part Number: 12630883
$5.60 MSRP: $8.80
You Save: $3.20 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: GASKET, Engine Camshaft & Valve Rocker Cover; Valve Cover Gasket
- Item Weight: 0.40 Pounds
- Item Dimensions: 16.6 x 4.9 x 0.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12630883
- 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 Insulator Assembly, Vlv Rkr Arm Cvr
Part Number: 12703336
$26.14 MSRP: $43.26
You Save: $17.12 (40%)
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Product Specifications
- Other Name: Heat Shield, Upper Insulator
- Replaced by: 12735918
- Replaces: 12634657
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12703336
- 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 | 8 Cyl 5.3L, 8 Cyl 6.2L, 8 Cyl5.3L
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2021 GMC Sierra Gasket Assembly, Cm/Shf Cvr
Part Number: 12663348
$12.16 MSRP: $20.13
You Save: $7.97 (40%)
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Product Specifications
- Other Name: Valve Cover Gasket
- Item Weight: 0.50 Pounds
- Item Dimensions: 23.2 x 13.8 x 0.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12663348
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
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, EXTENDED CAB 8' 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 Gasket, Vlv Rkr Arm Cvr
Part Number: 12691860
$19.50 MSRP: $30.68
You Save: $11.18 (37%)
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Product Specifications
- Other Name: Valve Cover Gasket
- Replaces: 12643242
- Item Weight: 0.30 Pounds
- Item Dimensions: 22.9 x 9.0 x 0.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12691860
- 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 Insulator Assembly, Valve Rocker Arm Cover
Part Number: 12634655
$25.58 MSRP: $42.35
You Save: $16.77 (40%)
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Product Specifications
- Other Name: INSULATOR, Engine Camshaft & Valve Rocker Cover; Upper Insulator
- Item Weight: 1.00 Pounds
- Item Dimensions: 7.7 x 4.7 x 17.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12634655
- 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 Insulator Assembly, Vlv Rkr Arm Cvr
Part Number: 12674122
$32.52 MSRP: $51.18
You Save: $18.66 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Upper Insulator
- Replaced by: 12703337
- Item Dimensions: 21.7 x 5.8 x 3.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12674122
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
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, 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 Cyl 6.2L, 8 Cyl5.3L
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2021 GMC Sierra Insulator Assembly, Vlv Rkr Arm Cvr
Part Number: 12674292
$28.02 MSRP: $44.08
You Save: $16.06 (37%)
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Product Specifications
- Other Name: Upper Insulator
- Item Dimensions: 16.9 x 5.7 x 3.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12674292
- 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, 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 Insulator Assembly, Vlv Rkr Arm Cvr
Part Number: 12703340
$59.88 MSRP: $94.21
You Save: $34.33 (37%)
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Product Specifications
- Other Name: Insulator
- Replaces: 12697360
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12703340
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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 Insulator Assembly, Vlv Rkr Arm Cvr
Part Number: 12703339
$63.76 MSRP: $100.31
You Save: $36.55 (37%)
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Product Specifications
- Other Name: Insulator
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12703339
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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 Gasket Kit, Cm/Shf Hsg
Part Number: 55500617
$11.05 MSRP: $17.39
You Save: $6.34 (37%)
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Product Specifications
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 55500617
- 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 Gasket Kit, Cm/Shf Hsg
Part Number: 55502647
$33.39 MSRP: $52.54
You Save: $19.15 (37%)
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Product Specifications
- Item Weight: 0.60 Pounds
- Item Dimensions: 28.1 x 10.7 x 0.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 55502647
- 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

Related 2021 GMC Sierra Parts

Alternate Year Models

2020 GMC Sierra Valve Cover Gasket