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Replacement and OEM Parts for 2018 GMC Sierra 2500 HD Valves, Valve Covers & Valvetrain Components

2018 GMC Sierra 2500 HD Valves, Valve Covers & Valvetrain Components

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52 products about 2018 GMC Sierra 2500 HD Valves, Valve Covers & Valvetrain Components found

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  • OEM 2018 GMC Sierra 2500 HD Valve Lifters Diagram - 12648846
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Valve Lifters

    PartNumber: 12648846
    OEM 2018 GMC Sierra 2500 HD Valve Lifters - 12648846
    Product Specifications
    • Other Names: Valve Lifters
    • Item Dimensions: 6.7 x 4.4 x 4.6 inches
    • Item Weight: 2.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12698945
    • Part Description: 2018 GMC Sierra 2500 HD Valve Lifters
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 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
    $30.09 MSRP: $49.82
    You Save: $19.73 (40%)
  • OEM 2018 GMC Sierra 2500 HD Gasket Diagram - 12637683
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Gasket

    PartNumber: 12637683
    OEM 2018 GMC Sierra 2500 HD Gasket - 12637683
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra
    • Location: Driver Side; Passenger Side
    • Other Names: Gasket, Valve Cover Gasket
    • Item Dimensions: 20.7 x 5.0 x 0.4 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12596192, 12612045, 12560696
    • Part Description: 2018 GMC Sierra 2500 HD Gasket
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $21.43 MSRP: $34.05
    You Save: $12.62 (38%)
  • OEM 2018 GMC Sierra 2500 HD Gasket Diagram - 12637683
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Gasket

    PartNumber: 12637683
    OEM 2018 GMC Sierra 2500 HD Gasket - 12637683
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra
    • Location: Driver Side; Passenger Side
    • Other Names: Gasket, Valve Cover Gasket
    • Item Dimensions: 20.7 x 5.0 x 0.4 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12596192, 12612045, 12560696
    • Part Description: 2018 GMC Sierra 2500 HD Gasket
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $21.43 MSRP: $34.05
    You Save: $12.62 (38%)
  • OEM 2018 GMC Sierra 2500 HD Valve Seals Diagram - 12482063
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Valve Seals

    PartNumber: 12482063
    OEM 2018 GMC Sierra 2500 HD Valve Seals - 12482063
    Product Specifications
    • Notes: Silverado, Sierra; Eng. Lc8
    • Other Names: Valve Seal
    • Item Dimensions: 4.2 x 3.1 x 1.6 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Valve Seals
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $36.38 MSRP: $60.23
    You Save: $23.85 (40%)
  • OEM 2018 GMC Sierra 2500 HD Valve Springs Diagram - 12482062
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Valve Springs

    PartNumber: 12482062
    OEM 2018 GMC Sierra 2500 HD Valve Springs - 12482062
    Product Specifications
    • Notes: Silverado, Sierra; Eng. L96
    • Other Names: Valve Seal, Valve Spring
    • Item Dimensions: 4.4 x 2.8 x 1.1 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Valve Springs
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $39.90 MSRP: $66.04
    You Save: $26.14 (40%)
  • OEM 2018 GMC Sierra 2500 HD Valve Springs Diagram - 12482062
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Valve Springs

    PartNumber: 12482062
    OEM 2018 GMC Sierra 2500 HD Valve Springs - 12482062
    Product Specifications
    • Notes: Silverado, Sierra; Eng. L96
    • Other Names: Valve Seal, Valve Spring
    • Item Dimensions: 4.4 x 2.8 x 1.1 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Valve Springs
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $39.90 MSRP: $66.04
    You Save: $26.14 (40%)
  • OEM 2018 GMC Sierra 2500 HD Head Gasket Diagram - 12610046
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Head Gasket

    PartNumber: 12610046
    OEM 2018 GMC Sierra 2500 HD Head Gasket - 12610046
    Product Specifications
    • Notes: Silverado, Sierra
    • Other Names: Head Gasket
    • Item Dimensions: 20.2 x 8.8 x 0.2 inches
    • Item Weight: 1.10 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Head Gasket
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $84.79 MSRP: $134.63
    You Save: $49.84 (38%)
  • OEM 2018 GMC Sierra 2500 HD Head Gasket Diagram - 12610046
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Head Gasket

    PartNumber: 12610046
    OEM 2018 GMC Sierra 2500 HD Head Gasket - 12610046
    Product Specifications
    • Notes: Silverado, Sierra
    • Other Names: Head Gasket
    • Item Dimensions: 20.2 x 8.8 x 0.2 inches
    • Item Weight: 1.10 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Head Gasket
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $84.79 MSRP: $134.63
    You Save: $49.84 (38%)
  • OEM 2018 GMC Sierra 2500 HD Rocker Arms Diagram - 12681275
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Rocker Arms

    PartNumber: 12681275
    OEM 2018 GMC Sierra 2500 HD Rocker Arms - 12681275
    Product Specifications
    • Notes: Silverado, Sierra; Exhaust
    • Other Names: Rocker Arms
    • Item Dimensions: 3.3 x 2.1 x 1.4 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 10214664, 12669993
    • Part Description: 2018 GMC Sierra 2500 HD Rocker Arms
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $13.73 MSRP: $22.71
    You Save: $8.98 (40%)
  • OEM 2018 GMC Sierra 2500 HD Valve Cover Diagram - 12637684
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Valve Cover

    PartNumber: 12637684
    OEM 2018 GMC Sierra 2500 HD Valve Cover - 12637684
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; Right
    • Location: Passenger Side
    • Other Names: Valve Cover
    • Item Dimensions: 22.4 x 5.8 x 6.0 inches
    • Item Weight: 2.70 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12607722
    • Part Description: 2018 GMC Sierra 2500 HD Valve Cover
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $78.46 MSRP: $124.57
    You Save: $46.11 (38%)
  • OEM 2018 GMC Sierra 2500 HD Cover Asm-Valve Rocker Arm Diagram - 12642655
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Cover Asm-Valve Rocker Arm

    PartNumber: 12642655
    OEM 2018 GMC Sierra 2500 HD Cover Asm-Valve Rocker Arm - 12642655
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; Left
    • Location: Driver Side
    • Other Names: Valve Cover
    • Item Dimensions: 24.2 x 7.1 x 4.1 inches
    • Item Weight: 4.00 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12607721, 12637685
    • Part Description: 2018 GMC Sierra 2500 HD Cover Asm-Valve Rocker Arm
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $77.33 MSRP: $115.34
    You Save: $38.01 (33%)
  • OEM 2018 GMC Sierra 2500 HD Push Rods Diagram - 10238852
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Push Rods

    PartNumber: 10238852
    OEM 2018 GMC Sierra 2500 HD Push Rods - 10238852
    Product Specifications
    • Notes: Silverado, Sierra
    • Other Names: Push Rod
    • Item Dimensions: 8.3 x 0.8 x 0.4 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Push Rods
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $18.32 MSRP: $30.29
    You Save: $11.97 (40%)
  • OEM 2018 GMC Sierra 2500 HD Actuator Assembly Diagram - 12606358
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Actuator Assembly

    PartNumber: 12606358
    OEM 2018 GMC Sierra 2500 HD Actuator Assembly - 12606358
    Product Specifications
    • Notes: Silverado, Sierra
    • Other Names: Actuator, Camshaft Gear, Timing Gear
    • Item Dimensions: 13.8 x 10.9 x 5.2 inches
    • Item Weight: 5.10 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Actuator Assembly
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $154.50 MSRP: $245.31
    You Save: $90.81 (38%)
  • OEM 2018 GMC Sierra 2500 HD Valve Cover Diagram - 12677065
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Valve Cover

    PartNumber: 12677065
    OEM 2018 GMC Sierra 2500 HD Valve Cover - 12677065
    Product Specifications
    • Notes: 2017-19; All; Left
    • Location: Driver Side
    • Other Names: Valve Cover
    • Item Dimensions: 30.0 x 14.4 x 7.0 inches
    • Item Weight: 7.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12677064
    • Part Description: 2018 GMC Sierra 2500 HD Valve Cover
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $116.94 MSRP: $185.66
    You Save: $68.72 (38%)
  • OEM 2018 GMC Sierra 2500 HD Valve Cover Diagram - 12677067
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Valve Cover

    PartNumber: 12677067
    OEM 2018 GMC Sierra 2500 HD Valve Cover - 12677067
    Product Specifications
    • Notes: 2017-19; All; Right
    • Location: Passenger Side
    • Other Names: Valve Cover
    • Item Dimensions: 26.3 x 10.6 x 4.8 inches
    • Item Weight: 7.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12677066
    • Part Description: 2018 GMC Sierra 2500 HD Valve Cover
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $111.73 MSRP: $177.40
    You Save: $65.67 (38%)
  • OEM 2018 GMC Sierra 2500 HD Valve Keeper Diagram - 10166345
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Valve Keeper

    PartNumber: 10166345
    OEM 2018 GMC Sierra 2500 HD Valve Keeper - 10166345
    Product Specifications
    • Notes: Silverado, Sierra
    • Other Names: Valve Keeper
    • Item Dimensions: 2.1 x 1.6 x 0.3 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Valve Keeper
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 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
    $3.26 MSRP: $5.17
    You Save: $1.91 (37%)
  • OEM 2018 GMC Sierra 2500 HD Filler Cap Diagram - 12677347
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    OEM (Genuine) 2018 GMC Sierra 2500 HD Filler Cap

    PartNumber: 12677347
    OEM 2018 GMC Sierra 2500 HD Filler Cap - 12677347
    Product Specifications
    • Notes: 2017-19
    • Other Names: Filler Cap
    • Item Dimensions: 3.0 x 3.2 x 2.1 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12683621
    • Part Description: 2018 GMC Sierra 2500 HD Filler Cap
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $8.52 MSRP: $16.07
    You Save: $7.55 (47%)
  • OEM 2018 GMC Sierra 2500 HD Filler Tube Diagram - 12609624
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Filler Tube

    PartNumber: 12609624
    OEM 2018 GMC Sierra 2500 HD Filler Tube - 12609624
    Product Specifications
    • Notes: 6.0 Liter
    • Other Names: Filler Tube, Oil Filler Tube
    • Item Dimensions: 5.9 x 4.7 x 2.1 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Filler Tube
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $15.42 MSRP: $25.53
    You Save: $10.11 (40%)
  • OEM 2018 GMC Sierra 2500 HD Head Gasket Diagram - 12636479
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Head Gasket

    PartNumber: 12636479
    OEM 2018 GMC Sierra 2500 HD Head Gasket - 12636479
    Product Specifications
    • Other Names: Head Gasket
    • Item Dimensions: 9.1 x 21.8 x 0.2 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12727485
    • Part Description: 2018 GMC Sierra 2500 HD Head Gasket
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $61.11 MSRP: $97.03
    You Save: $35.92 (38%)
  • OEM 2018 GMC Sierra 2500 HD Head Gasket Diagram - 12636479
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Head Gasket

    PartNumber: 12636479
    OEM 2018 GMC Sierra 2500 HD Head Gasket - 12636479
    Product Specifications
    • Other Names: Head Gasket
    • Item Dimensions: 9.1 x 21.8 x 0.2 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12727485
    • Part Description: 2018 GMC Sierra 2500 HD Head Gasket
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $61.11 MSRP: $97.03
    You Save: $35.92 (38%)
  • OEM 2018 GMC Sierra 2500 HD Exhaust Valve Diagram - 12612427
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Exhaust Valve

    PartNumber: 12612427
    OEM 2018 GMC Sierra 2500 HD Exhaust Valve - 12612427
    Product Specifications
    • Notes: Silverado, Sierra
    • Other Names: Exhaust Valve
    • Item Dimensions: 5.5 x 2.2 x 1.8 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Exhaust Valve
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $29.66 MSRP: $47.10
    You Save: $17.44 (38%)
  • OEM 2018 GMC Sierra 2500 HD Rocker Shaft Diagram - 12648424
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Rocker Shaft

    PartNumber: 12648424
    OEM 2018 GMC Sierra 2500 HD Rocker Shaft - 12648424
    Product Specifications
    • Notes: Silverado, Sierra
    • Other Names: Rocker Shaft
    • Item Dimensions: 21.6 x 5.5 x 3.5 inches
    • Item Weight: 2.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Rocker Shaft
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $23.87 MSRP: $37.90
    You Save: $14.03 (38%)
  • OEM 2018 GMC Sierra 2500 HD Filler Cap Diagram - 12643759
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Filler Cap

    PartNumber: 12643759
    OEM 2018 GMC Sierra 2500 HD Filler Cap - 12643759
    Product Specifications
    • Notes: 6.0 Liter
    • Other Names: Filler Cap
    • Item Dimensions: 3.0 x 3.0 x 1.6 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12577268
    • Part Description: 2018 GMC Sierra 2500 HD Filler Cap
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $18.21 MSRP: $34.34
    You Save: $16.13 (47%)
  • OEM 2018 GMC Sierra 2500 HD Rocker Arms Diagram - 12696105
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Rocker Arms

    PartNumber: 12696105
    OEM 2018 GMC Sierra 2500 HD Rocker Arms - 12696105
    Product Specifications
    • Notes: Silverado, Sierra; Intake
    • Other Names: Rocker Arms
    • Item Dimensions: 3.4 x 1.9 x 1.4 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12669995, 12569167
    • Part Description: 2018 GMC Sierra 2500 HD Rocker Arms
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $12.97 MSRP: $21.45
    You Save: $8.48 (40%)
  • OEM 2018 GMC Sierra 2500 HD Valve Cover Gasket Diagram - 12691860
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Valve Cover Gasket

    PartNumber: 12691860
    OEM 2018 GMC Sierra 2500 HD Valve Cover Gasket - 12691860
    Product Specifications
    • Notes: 2017-19; Silverado, Sierra; All
    • Location: Driver Side; Passenger Side
    • Other Names: Valve Cover Gasket
    • Item Dimensions: 22.9 x 9.0 x 0.5 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12643242
    • Part Description: 2018 GMC Sierra 2500 HD Valve Cover Gasket
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $19.86 MSRP: $31.50
    You Save: $11.64 (37%)
  • OEM 2018 GMC Sierra 2500 HD Valve Cover Gasket Diagram - 12691860
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Valve Cover Gasket

    PartNumber: 12691860
    OEM 2018 GMC Sierra 2500 HD Valve Cover Gasket - 12691860
    Product Specifications
    • Notes: 2017-19; Silverado, Sierra; All
    • Location: Driver Side; Passenger Side
    • Other Names: Valve Cover Gasket
    • Item Dimensions: 22.9 x 9.0 x 0.5 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12643242
    • Part Description: 2018 GMC Sierra 2500 HD Valve Cover Gasket
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $19.86 MSRP: $31.50
    You Save: $11.64 (37%)
  • OEM 2018 GMC Sierra 2500 HD Rocker Arms Diagram - 12636189
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Rocker Arms

    PartNumber: 12636189
    OEM 2018 GMC Sierra 2500 HD Rocker Arms - 12636189
    Product Specifications
    • Notes: Silverado, Sierra; Intake
    • Other Names: Rocker Arms
    • Item Dimensions: 5.2 x 2.1 x 2.0 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Rocker Arms
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $16.63 MSRP: $26.39
    You Save: $9.76 (37%)
  • OEM 2018 GMC Sierra 2500 HD Rocker Arms Diagram - 12636190
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Rocker Arms

    PartNumber: 12636190
    OEM 2018 GMC Sierra 2500 HD Rocker Arms - 12636190
    Product Specifications
    • Notes: Silverado, Sierra; Exhaust
    • Other Names: Rocker Arms
    • Item Dimensions: 5.2 x 2.0 x 2.1 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Rocker Arms
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $16.63 MSRP: $26.39
    You Save: $9.76 (37%)
  • OEM 2018 GMC Sierra 2500 HD Valves Diagram - 12636187
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Valves

    PartNumber: 12636187
    OEM 2018 GMC Sierra 2500 HD Valves - 12636187
    Product Specifications
    • Notes: Silverado, Sierra; Exhaust
    • Other Names: Valves
    • Item Dimensions: 5.2 x 1.3 x 1.3 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Valves
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $10.04 MSRP: $15.94
    You Save: $5.90 (38%)
  • OEM 2018 GMC Sierra 2500 HD Valves Diagram - 12636187
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 2500 HD Valves

    PartNumber: 12636187
    OEM 2018 GMC Sierra 2500 HD Valves - 12636187
    Product Specifications
    • Notes: Silverado, Sierra; Exhaust
    • Other Names: Valves
    • Item Dimensions: 5.2 x 1.3 x 1.3 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 2500 HD Valves
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $10.04 MSRP: $15.94
    You Save: $5.90 (38%)
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