Contact Us Live Chat or 1-888-220-8330
Search Bar
Search by Part Number or Keywords
  • My Garage
  • My Account
  • Cart
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Help Center
< Back ×
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Login/Register My Account Track Order Help Center Contact Us
Replacement and OEM Parts for 2018 GMC Sierra 3500 HD Timing Belts, Chains, Cams & Related Parts

2018 GMC Sierra 3500 HD Timing Belts, Chains, Cams & Related Parts

My Vehicle Change Vehicle
2018 GMC Sierra 3500 HD
Change Vehicle
Vehicle Options
We need more information about your vehicle to make a correct determination of fitment
< Back to View All
Engine & Drivetrain

89 products about 2018 GMC Sierra 3500 HD Timing Belts, Chains, Cams & Related Parts found

Show Item:
  • 30
  • 60
  • 90
Sort by:
Recommended
Filter
Sort
View by
  • OEM 2018 GMC Sierra 3500 HD Seal, Engine Front Cover Diagram - 12585673
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Seal, Engine Front Cover

    PartNumber: 12585673
    OEM 2018 GMC Sierra 3500 HD Seal, Engine Front Cover - 12585673
    Product Specifications
    • Notes: Silverado, Sierra
    • Item Dimensions: 3.5 x 3.5 x 0.4 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12550565, 12561244
    • Part Description: 2018 GMC Sierra 3500 HD Seal, Engine Front Cover
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $15.05 MSRP: $45.94
    You Save: $30.89 (68%)
  • OEM 2018 GMC Sierra 3500 HD Seal, Engine Front Cover Diagram - 12585673
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Seal, Engine Front Cover

    PartNumber: 12585673
    OEM 2018 GMC Sierra 3500 HD Seal, Engine Front Cover - 12585673
    Product Specifications
    • Notes: Silverado, Sierra
    • Item Dimensions: 3.5 x 3.5 x 0.4 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12550565, 12561244
    • Part Description: 2018 GMC Sierra 3500 HD Seal, Engine Front Cover
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $15.05 MSRP: $45.94
    You Save: $30.89 (68%)
  • OEM 2018 GMC Sierra 3500 HD Serpentine Idler Pulley Diagram - 12669569
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Serpentine Idler Pulley

    PartNumber: 12669569
    OEM 2018 GMC Sierra 3500 HD Serpentine Idler Pulley - 12669569
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; 6.0l
    • Other Names: Idler Pulley, Serpentine Idler Pulley
    • Item Dimensions: 6.8 x 4.4 x 4.4 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12555609, 12580771
    • Part Description: 2018 GMC Sierra 3500 HD Serpentine Idler Pulley
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $54.20 MSRP: $102.28
    You Save: $48.08 (48%)
  • OEM 2018 GMC Sierra 3500 HD Serpentine Idler Pulley Diagram - 12669569
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Serpentine Idler Pulley

    PartNumber: 12669569
    OEM 2018 GMC Sierra 3500 HD Serpentine Idler Pulley - 12669569
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; 6.0l
    • Other Names: Idler Pulley, Serpentine Idler Pulley
    • Item Dimensions: 6.8 x 4.4 x 4.4 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12555609, 12580771
    • Part Description: 2018 GMC Sierra 3500 HD Serpentine Idler Pulley
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $54.20 MSRP: $102.28
    You Save: $48.08 (48%)
  • OEM 2018 GMC Sierra 3500 HD Serpentine Idler Pulley Diagram - 12669569
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Serpentine Idler Pulley

    PartNumber: 12669569
    OEM 2018 GMC Sierra 3500 HD Serpentine Idler Pulley - 12669569
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; 6.0l
    • Other Names: Idler Pulley, Serpentine Idler Pulley
    • Item Dimensions: 6.8 x 4.4 x 4.4 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12555609, 12580771
    • Part Description: 2018 GMC Sierra 3500 HD Serpentine Idler Pulley
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $54.20 MSRP: $102.28
    You Save: $48.08 (48%)
  • OEM 2018 GMC Sierra 3500 HD Serpentine Tensioner Diagram - 12609719
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Serpentine Tensioner

    PartNumber: 12609719
    OEM 2018 GMC Sierra 3500 HD Serpentine Tensioner - 12609719
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; 6.0l
    • Other Names: Belt Tensioner, Serpentine Tensioner, Tensioner
    • Item Dimensions: 6.6 x 4.5 x 4.5 inches
    • Item Weight: 1.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12580162, 12554027
    • Part Description: 2018 GMC Sierra 3500 HD Serpentine Tensioner
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $61.34 MSRP: $101.54
    You Save: $40.20 (40%)
  • OEM 2018 GMC Sierra 3500 HD Serpentine Tensioner Diagram - 12609719
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Serpentine Tensioner

    PartNumber: 12609719
    OEM 2018 GMC Sierra 3500 HD Serpentine Tensioner - 12609719
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; 6.0l
    • Other Names: Belt Tensioner, Serpentine Tensioner, Tensioner
    • Item Dimensions: 6.6 x 4.5 x 4.5 inches
    • Item Weight: 1.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12580162, 12554027
    • Part Description: 2018 GMC Sierra 3500 HD Serpentine Tensioner
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $61.34 MSRP: $101.54
    You Save: $40.20 (40%)
  • OEM 2018 GMC Sierra 3500 HD Serpentine Tensioner Diagram - 12609719
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Serpentine Tensioner

    PartNumber: 12609719
    OEM 2018 GMC Sierra 3500 HD Serpentine Tensioner - 12609719
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; 6.0l
    • Other Names: Belt Tensioner, Serpentine Tensioner, Tensioner
    • Item Dimensions: 6.6 x 4.5 x 4.5 inches
    • Item Weight: 1.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12580162, 12554027
    • Part Description: 2018 GMC Sierra 3500 HD Serpentine Tensioner
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $61.34 MSRP: $101.54
    You Save: $40.20 (40%)
  • Gates Drivealign OE Exact Automatic Belt Tensioner for 2018 GMC Sierra 3500 HD - 39083

    Gates® Drivealign OE Exact Automatic Belt Tensioner for 2018 GMC Sierra 3500 HD

    PartNumber: 39083
    Product Specifications
    • Notes: Plastic Pulley
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: V-Ribbed Grooved
    • Material: Thermoplastic
    • Number of Grooves: 6
    • Number Of Pulleys: 1
    • OE Comparison Rating: OE Exact
    • Outside Diameter: 2.99"
    • Pulley 1 Flanged: Yes
    • UPC: 770075414506
    • Width: 28 mm
    • Part Description: 2018 GMC Sierra 3500 HD Drivealign OE Exact Automatic Belt Tensioner
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $56.31
  • Dorman Oe Solutions Steel Variable Timing Sprocket for 2018 GMC Sierra 3500 HD - 918-186

    Dorman® Oe Solutions Steel Variable Timing Sprocket for 2018 GMC Sierra 3500 HD

    PartNumber: 918-186
    Product Specifications
    • Attachment Type: Bolt
    • Color: Silver
    • Diameter: 5.342"
    • Grade Type: Standard
    • Height: 1.64"
    • Material: Steel
    • OE Part Number: 12606358
    • Overall Length: 5.342"
    • UPC: 885484591868
    • Part Description: 2018 GMC Sierra 3500 HD Oe Solutions Steel Variable Timing Sprocket
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $86.69
  • Dorman OE Solutions Center Inner Regular Grade Type Harmonic Balancer Assembly Kit for 2018 GMC Sierra 3500 HD - 594-209

    Dorman® OE Solutions Center Inner Regular Grade Type Harmonic Balancer Assembly Kit for 2018 GMC Sierra 3500 HD

    PartNumber: 594-209
    Product Specifications
    • Notes: Direct Replacement
    • Color/Finish: Black
    • Degree Markings: No
    • Drive Belt Type: Serpentine
    • Grade Type: Regular
    • OE Part Number: 12553112, 12576652, 12634105, 19300488, 8-12576-652-0, 8-12634-105-0, 12617538, 8193004880, 8126152970
    • UPC: 019495118732
    • Part Description: 2018 GMC Sierra 3500 HD OE Solutions Center Inner Regular Grade Type Harmonic Balancer Assembly Kit
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $83.71
  • Dayco SUPERCHARGER PERF BALANCER, POWERBOND for 2018 GMC Sierra 3500 HD - PBO81190SC10

    Dayco® SUPERCHARGER PERF BALANCER, POWERBOND for 2018 GMC Sierra 3500 HD

    PartNumber: PBO81190SC10
    Product Specifications
    • Bolt Hole Quantity: 9
    • Counterweight Balance: Neutral, no counterweight
    • Crank Bore: 1.481; 37.60
    • Crank Trigger/Exciter Plate: No
    • Hardware Included: No
    • Installation Instructions Included: Yes
    • Nose Outside Diameter: 2.126; 54.00
    • Number of Integrated Pulleys: 2
    • Outer Ring Material: Steel
    • Overall Outside Diameter: 214.00; 8.426
    • Overall Width: 117.50; 4.626
    • Pulley 1 Number Of Grooves: 4
    • Pulley 1 Outside Diameter: 191.200; 7.528
    • Pulley 1 Type: Serpentine
    • Pulley 2 Number Of Grooves: 8
    • Pulley 2 Outside Diameter: 210.000; 8.268
    • Pulley 2 Type: Serpentine
    • Ring Width: 2.569; 65.23
    • Timing Marks: Yes
    • Woodruff Key Included: No
    • Part Description: 2018 GMC Sierra 3500 HD SUPERCHARGER PERF BALANCER, POWERBOND
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $415.62
  • Sealed Power Camshaft Bearing Set for 2018 GMC Sierra 3500 HD - 1923M

    Sealed Power® Camshaft Bearing Set for 2018 GMC Sierra 3500 HD

    PartNumber: 1923M
    Product Specifications
    • Notes: Wide # 1 and 5 Position
    • Package Alert: Full set
    • Part Material: Steel Backed Babbitt or Bronze Alloy
    • Size: Standard
    • UPC: 019826060617
    • Part Description: 2018 GMC Sierra 3500 HD Camshaft Bearing Set
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $26.84
  • Dorman OE Solutions Variable Timing Oil Control Valve for 2018 GMC Sierra 3500 HD - 916-865

    Dorman® OE Solutions Variable Timing Oil Control Valve for 2018 GMC Sierra 3500 HD

    PartNumber: 916-865
    Product Specifications
    • End 1 Thread Diameter: 0.62"
    • End 1 Thread Type: Fine
    • Gasket or Seal Included: No
    • Length: 3.92"
    • Material: Metal
    • Mount Hole Quantity: 0
    • Port Quantity: 12
    • UPC: 885484890077
    • Part Description: 2018 GMC Sierra 3500 HD OE Solutions Variable Timing Oil Control Valve
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $29.34
  • Dayco No Slack Automatic Belt Tensioner Assembly for 2018 GMC Sierra 3500 HD - 89397

    Dayco® No Slack Automatic Belt Tensioner Assembly for 2018 GMC Sierra 3500 HD

    PartNumber: 89397
    Product Specifications
    • Belt Type: Serpentine
    • Direction: Counter Clock Wise
    • Number Of Pulleys: 1
    • Pulley 1 Diameter: 76
    • Pulley 1 Flat: N
    • Pulley 1 Number Of Grooves: 6
    • Pulley 1 Width: 28.7
    • UPC: 036687725486
    • Part Description: 2018 GMC Sierra 3500 HD No Slack Automatic Belt Tensioner Assembly
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $48.99
  • Dorman OE Solutions Steel Harmonic Balancer Bolt for 2018 GMC Sierra 3500 HD - 917-139

    Dorman® OE Solutions Steel Harmonic Balancer Bolt for 2018 GMC Sierra 3500 HD

    PartNumber: 917-139
    Product Specifications
    • Material: Steel
    • OE Part Number: 12557840
    • UPC: 037495332637
    • Part Description: 2018 GMC Sierra 3500 HD OE Solutions Steel Harmonic Balancer Bolt
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $5.06
  • Gates Micro V Serpentine Belt Drive Component Kit for 2018 GMC Sierra 3500 HD - 90K-39083B

    Gates® Micro V Serpentine Belt Drive Component Kit for 2018 GMC Sierra 3500 HD

    PartNumber: 90K-39083B
    Product Specifications
    • Notes: {K060930HD, K040355SF, 39083, 36299}; W/145A. Alt.
    • Belt 1 Outside Circumference (in): 93.585
    • Belt 1 Outside Circumference (mm): 2377
    • Belt 1 Part Number: K060930HD
    • Belt 2 Outside Circumference (in): 36
    • Belt 2 Outside Circumference (mm): 916
    • Belt 2 Part Number: K040355SF
    • Belt Top Width: .56; .807; 14; 20
    • Contents: Belt, Tensioner, Idler
    • Idler Pulley 1 Part Number: 36299
    • Tensioner Assembly Part Number: 39083
    • UPC: 770075801856
    • Part Description: 2018 GMC Sierra 3500 HD Micro V Serpentine Belt Drive Component Kit
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $130.21
  • OEM 2018 GMC Sierra 3500 HD Rear Main Seal Gasket Diagram - 12633904
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Rear Main Seal Gasket

    PartNumber: 12633904
    OEM 2018 GMC Sierra 3500 HD Rear Main Seal Gasket - 12633904
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra
    • Item Dimensions: 13.6 x 11.2 x 0.2 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12558013, 12574294
    • Part Description: 2018 GMC Sierra 3500 HD Rear Main Seal Gasket
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $30.08 MSRP: $47.74
    You Save: $17.66 (37%)
  • Dayco No Slack Lower Light Duty Idler Tensioner Pulley for 2018 GMC Sierra 3500 HD - 89059

    Dayco® No Slack Lower Light Duty Idler Tensioner Pulley for 2018 GMC Sierra 3500 HD

    PartNumber: 89059
    Product Specifications
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 14
    • Belt Type: Serpentine
    • Flat: Y
    • Material: Steel
    • Max Belt Width: 06 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 76
    • Pulley Width: 28
    • UPC: 036687383129
    • Part Description: 2018 GMC Sierra 3500 HD No Slack Lower Light Duty Idler Tensioner Pulley
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.6L
    $24.32
  • Gates Fleetrunner Micro V Heavy Duty V Ribbed Belt for 2018 GMC Sierra 3500 HD - K060930HD

    Gates® Fleetrunner Micro V Heavy Duty V Ribbed Belt for 2018 GMC Sierra 3500 HD

    PartNumber: K060930HD
    Product Specifications
    • Effective Length: 93.02"
    • OE Comparison Rating: OE Improved
    • Outside Circumference: 93.585"
    • Rib Quantity: 6
    • Section: K
    • Top Width: 0.807"
    • UPC: 770075241522
    • Part Description: 2018 GMC Sierra 3500 HD Fleetrunner Micro V Heavy Duty V Ribbed Belt
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $43.73
  • Gates Fleetrunner Micro V Heavy Duty V Ribbed Belt for 2018 GMC Sierra 3500 HD - K061195HD

    Gates® Fleetrunner Micro V Heavy Duty V Ribbed Belt for 2018 GMC Sierra 3500 HD

    PartNumber: K061195HD
    Product Specifications
    • Notes: W/Single Alt.
    • Effective Length: 119.53"
    • OE Comparison Rating: OE Improved
    • Outside Circumference: 3051 mm
    • Rib Quantity: 6
    • Section: K
    • Top Width: 0.807"
    • UPC: 770075241249
    • Part Description: 2018 GMC Sierra 3500 HD Fleetrunner Micro V Heavy Duty V Ribbed Belt
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.6L
    $30.21
  • OEM 2018 GMC Sierra 3500 HD Belt Diagram - 12637204
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Belt

    PartNumber: 12637204
    OEM 2018 GMC Sierra 3500 HD Belt - 12637204
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; 6.0l
    • Other Names: Belt, Drive Belt, Serpentine Belt
    • Item Dimensions: 23.2 x 3.3 x 0.9 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12557501, 12569348, 12576451
    • Part Description: 2018 GMC Sierra 3500 HD Belt
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $50.46 MSRP: $91.36
    You Save: $40.90 (45%)
  • OEM 2018 GMC Sierra 3500 HD Belt Diagram - 12637204
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Belt

    PartNumber: 12637204
    OEM 2018 GMC Sierra 3500 HD Belt - 12637204
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; 6.0l
    • Other Names: Belt, Drive Belt, Serpentine Belt
    • Item Dimensions: 23.2 x 3.3 x 0.9 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12557501, 12569348, 12576451
    • Part Description: 2018 GMC Sierra 3500 HD Belt
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $50.46 MSRP: $91.36
    You Save: $40.90 (45%)
  • OEM 2018 GMC Sierra 3500 HD Belt Diagram - 12637204
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Belt

    PartNumber: 12637204
    OEM 2018 GMC Sierra 3500 HD Belt - 12637204
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; 6.0l
    • Other Names: Belt, Drive Belt, Serpentine Belt
    • Item Dimensions: 23.2 x 3.3 x 0.9 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12557501, 12569348, 12576451
    • Part Description: 2018 GMC Sierra 3500 HD Belt
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $50.46 MSRP: $91.36
    You Save: $40.90 (45%)
  • OEM 2018 GMC Sierra 3500 HD Belt Diagram - 12637204
    View Related Parts

    OEM (Genuine) 2018 GMC Sierra 3500 HD Belt

    PartNumber: 12637204
    OEM 2018 GMC Sierra 3500 HD Belt - 12637204
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; 6.0l
    • Other Names: Belt, Drive Belt, Serpentine Belt
    • Item Dimensions: 23.2 x 3.3 x 0.9 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12557501, 12569348, 12576451
    • Part Description: 2018 GMC Sierra 3500 HD Belt
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $50.46 MSRP: $91.36
    You Save: $40.90 (45%)
  • Dayco No Slack Light Duty New Style Idler Tensioner Pulley for 2018 GMC Sierra 3500 HD - 89006

    Dayco® No Slack Light Duty New Style Idler Tensioner Pulley for 2018 GMC Sierra 3500 HD

    PartNumber: 89006
    Product Specifications
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 12
    • Belt Type: Serpentine
    • Flat: Y
    • Material: Steel
    • Max Belt Width: 06 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 90
    • Pulley Width: 30
    • UPC: 038244156948
    • Part Description: 2018 GMC Sierra 3500 HD No Slack Light Duty New Style Idler Tensioner Pulley
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $19.32
  • Gates Micro V V Ribbed Belt for 2018 GMC Sierra 3500 HD - K060930

    Gates® Micro V V Ribbed Belt for 2018 GMC Sierra 3500 HD

    PartNumber: K060930
    Product Specifications
    • OE Comparison Rating: OE Performance
    • Outside Circumference: 93.585"
    • Rib Quantity: 6
    • Section: K
    • Top Width: 20 mm
    • UPC: 072053009583
    • Part Description: 2018 GMC Sierra 3500 HD Micro V V Ribbed Belt
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $34.54
  • Dayco Poly Rib Serpentine Belt for 2018 GMC Sierra 3500 HD - 5060930

    Dayco® Poly Rib Serpentine Belt for 2018 GMC Sierra 3500 HD

    PartNumber: 5060930
    Product Specifications
    • Color: Black
    • Cross Section: K-Section
    • Effective Length: 2362.20; 93.00
    • Material: EPDM, Aramid Reinforced
    • Maximum Operating Temperature: 100; 212
    • Minimum Operating Temperature: -42.7; -45
    • Outside Circumference: 2376.43; 93.56
    • Rib Depth: Standard
    • Rib Profile: W Profile
    • Rib Quantity: 6
    • Standards: SAE J1459, SAE J2432
    • Top Width: .82
    • UPC: 038244096268
    • Part Description: 2018 GMC Sierra 3500 HD Poly Rib Serpentine Belt
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $34.31
  • Gates Drivealign Drive Belt Idler Pulley for 2018 GMC Sierra 3500 HD - 36299

    Gates® Drivealign Drive Belt Idler Pulley for 2018 GMC Sierra 3500 HD

    PartNumber: 36299
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: Smooth/Backside
    • Material: Steel
    • Number of Grooves: 0
    • Number Of Pulleys: 1
    • Outside Diameter: 3.54"
    • Pulley 1 Flanged: No
    • UPC: 072053394078
    • Width: 31 mm
    • Part Description: 2018 GMC Sierra 3500 HD Drivealign Drive Belt Idler Pulley
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $25.40
  • Dayco No Slack Light Duty Idler Tensioner Pulley for 2018 GMC Sierra 3500 HD - 89009

    Dayco® No Slack Light Duty Idler Tensioner Pulley for 2018 GMC Sierra 3500 HD

    PartNumber: 89009
    Product Specifications
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 12
    • Belt Type: Serpentine
    • Flat: N
    • Groove Quantity: 6
    • Material: Polymer
    • Max Belt Width: 06 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 76
    • Pulley Width: 28.7
    • UPC: 038244156979
    • Part Description: 2018 GMC Sierra 3500 HD No Slack Light Duty Idler Tensioner Pulley
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $13.50
1-30 of 89 Results
< Previous
123
Next >