Contact Us: Live Chat or 1-888-737-9766
×
Search Bar
Search by Part Number, Part Name, Description
My Garage
My Account
My Cart

Genuine 2021 GMC Sierra Cylinder Head

Head

Enter your vehicle info to find more parts and verify fitment

  • Select Vehicle by VIN
  • Select Vehicle by Model
Select by VIN
Enter your VIN for the most accurate results.
Enter your VIN for the most accurate results.
or
Select by Model
-- Select Make --
-- Select Model --
-- Select Year --

7 Cylinder Heads found

  • 2021 GMC Sierra Cylinder Head - 12629342
    View related parts

    2021 GMC Sierra Cylinder Head Assembly

    Part Number: 12629342
    • Other Name: Head Assembly, Cyl; Cylinder Head
    $96.79 MSRP: $152.30
    You Save: $55.51 (37%)
    Add to Cart
    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 | 6 Cyl 4.3L
    Less Info
  • 2021 GMC Sierra Cylinder Head - 12702633
    View related parts

    2021 GMC Sierra Head Assembly, Cyl (Mchg)

    Part Number: 12702633
    • Other Name: Cylinder Head
    • Replaced by: 12716846
    • Replaces: 12679954, 12690885, 12685841, 12680672
    $417.27 MSRP: $659.52
    You Save: $242.25 (37%)
    Add to Cart
    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
    Less Info
  • 2021 GMC Sierra Cylinder Head - 12703610
    View related parts

    2021 GMC Sierra Head Assembly, Cyl (W/ Vlv)

    Part Number: 12703610
    • Other Name: Cylinder Head
    • Replaces: 12672799, 12699618
    $513.92 MSRP: $815.77
    You Save: $301.85 (38%)
    Add to Cart
    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
    Less Info
  • 2021 GMC Sierra Cylinder Head - 55514596
    View related parts

    2021 GMC Sierra Head Assembly, Cyl (W/ Vlv)

    Part Number: 55514596
    • Other Name: Cylinder Head
    • Replaced by: 40009167
    $604.08 MSRP: $959.10
    You Save: $355.02 (38%)
    Add to Cart
    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 | 6 Cyl 3.0L Diesel
    Less Info
  • 2021 GMC Sierra Cylinder Head - 12701519
    View related parts

    2021 GMC Sierra Cylinder Head Assembly (W/ Valve)

    Part Number: 12701519
    • Other Name: Head Assembly, Cyl (W/ Vlv); Cylinder Head
    • Replaced by: 12733805
    $963.45 MSRP: $1529.66
    You Save: $566.21 (38%)
    Add to Cart
    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, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON | 4 Cyl 2.7L
    Less Info
  • 2021 GMC Sierra Cylinder Head - 12677841
    View related parts

    2021 GMC Sierra Cylinder Head Assembly (W/ Valve)

    Part Number: 12677841
    • Other Name: Head Assembly, Cyl (W/ Valve); Cylinder Head
    • Replaced by: 12699616
    $502.06 MSRP: $794.63
    You Save: $292.57 (37%)
    Add to Cart
    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 Cyl5.3L
    Less Info
  • 2021 GMC Sierra Cylinder Head - 12699617
    View related parts

    2021 GMC Sierra Head Assembly, Cyl (W/ Vlv)

    Part Number: 12699617
    • Other Name: Cylinder Head
    • Replaces: 12678633, 12620545, 12620544, 12678972
    $331.35 MSRP: $523.71
    You Save: $192.36 (37%)
    Add to Cart
    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" 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 6.2L
    Less Info

Related 2021 GMC Sierra Parts

Alternate Year Models

+
2020 GMC Sierra Cylinder Head