108 products about 2021 GMC Sierra 3500 HD Timing Belts, Chains, Cams & Related Parts found
Product Specifications- Other Names: Timing Chain
- Item Dimensions: 9.6 x 6.2 x 0.7 inches
- Item Weight: 0.80 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Timing Chain
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$60.48 MSRP: $96.00
You Save: $35.52 (38%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd
- Other Names: Chain Tensioner, Tensioner, Timing Tensioner
- Item Dimensions: 6.1 x 5.2 x 3.1 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Tensioner Kit-Timing Chain
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$39.73 MSRP: $59.28
You Save: $19.55 (33%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd
- Other Names: Chain Tensioner, Tensioner, Timing Tensioner
- Item Dimensions: 6.1 x 5.2 x 3.1 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Tensioner Kit-Timing Chain
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$39.73 MSRP: $59.28
You Save: $19.55 (33%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd
- Other Names: Chain Tensioner, Tensioner, Timing Tensioner
- Item Dimensions: 6.1 x 5.2 x 3.1 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Tensioner Kit-Timing Chain
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$39.73 MSRP: $59.28
You Save: $19.55 (33%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd
- Other Names: Chain Tensioner, Tensioner, Timing Tensioner
- Item Dimensions: 6.1 x 5.2 x 3.1 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Tensioner Kit-Timing Chain
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$39.73 MSRP: $59.28
You Save: $19.55 (33%)
Product Specifications- Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators; Silverado, Sierra 3500 Hd; Gas
- Other Names: AC Belt
- Item Dimensions: 10.1 x 9.6 x 3.6 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Belt Kit-A/C Compressor
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$54.14 MSRP: $89.84
You Save: $35.70 (40%)
Product Specifications- Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators; Silverado, Sierra 3500 Hd; Gas
- Other Names: AC Belt
- Item Dimensions: 10.1 x 9.6 x 3.6 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Belt Kit-A/C Compressor
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$54.14 MSRP: $89.84
You Save: $35.70 (40%)
Product Specifications- Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators; Silverado, Sierra 3500 Hd; Gas
- Other Names: AC Belt
- Item Dimensions: 10.1 x 9.6 x 3.6 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Belt Kit-A/C Compressor
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$54.14 MSRP: $89.84
You Save: $35.70 (40%)
Product Specifications- Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators; Silverado, Sierra 3500 Hd; Gas
- Other Names: AC Belt
- Item Dimensions: 10.1 x 9.6 x 3.6 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Belt Kit-A/C Compressor
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$54.14 MSRP: $89.84
You Save: $35.70 (40%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd; 6.6 Liter Gas
- Item Dimensions: 3.6 x 3.5 x 0.5 inches
- Item Weight: 0.40 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12693255
- Part Description: 2021 GMC Sierra 3500 HD Front Cover Seal
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$11.60 MSRP: $18.40
You Save: $6.80 (37%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd; 6.6 Liter Gas
- Item Dimensions: 3.6 x 3.5 x 0.5 inches
- Item Weight: 0.40 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12693255
- Part Description: 2021 GMC Sierra 3500 HD Front Cover Seal
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$11.60 MSRP: $18.40
You Save: $6.80 (37%)
Product Specifications- Notes: 6.6 Liter Gas
- Item Dimensions: 5.2 x 1.2 x 1.2 inches
- Item Weight: 0.80 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Vibration Damper Bolt
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$22.72 MSRP: $37.61
You Save: $14.89 (40%)
Product Specifications- Notes: 6.6 Liter Gas, Short
- Item Dimensions: 2.2 x 1.2 x 0.8 inches
- Item Weight: 0.40 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Module Bolt
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$4.72 MSRP: $7.47
You Save: $2.75 (37%)
Product Specifications- Notes: 6.6 Liter Gas, Short
- Item Dimensions: 2.2 x 1.2 x 0.8 inches
- Item Weight: 0.40 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Module Bolt
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$4.72 MSRP: $7.47
You Save: $2.75 (37%)
Product Specifications- Notes: 6.6 Liter Diesel, W/O Dual Alternators, Type 1; 6.6 Liter Diesel, W/Dual Alternators, Type 1; Silverado, Sierra 3500 Hd; Dual Alternator; Diesel; Lower; Right;Silverado, Sierra 3500 Hd; Dual Alternator; Diesel; Upper;Silverado, Sierra 3500 Hd; Single Alternator; Diesel; Lower;Silverado, Sierra 3500 Hd; Single Alternator; Diesel; Upper
- Other Names: Idler Pulley, Serpentine Idler Pulley
- Item Dimensions: 4.3 x 4.4 x 4.2 inches
- Item Weight: 0.90 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12581700
- Part Description: 2021 GMC Sierra 3500 HD Serpentine Idler Pulley
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
$54.11 MSRP: $102.11
You Save: $48.00 (48%)
Product Specifications- Notes: 6.6 Liter Diesel, W/O Dual Alternators, Type 1; 6.6 Liter Diesel, W/Dual Alternators, Type 1; Silverado, Sierra 3500 Hd; Dual Alternator; Diesel; Lower; Right;Silverado, Sierra 3500 Hd; Dual Alternator; Diesel; Upper;Silverado, Sierra 3500 Hd; Single Alternator; Diesel; Lower;Silverado, Sierra 3500 Hd; Single Alternator; Diesel; Upper
- Other Names: Idler Pulley, Serpentine Idler Pulley
- Item Dimensions: 4.3 x 4.4 x 4.2 inches
- Item Weight: 0.90 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12581700
- Part Description: 2021 GMC Sierra 3500 HD Serpentine Idler Pulley
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
$54.11 MSRP: $102.11
You Save: $48.00 (48%)
Product Specifications- Notes: 6.6 Liter Diesel, W/O Dual Alternators, Type 1; 6.6 Liter Diesel, W/Dual Alternators, Type 1; Silverado, Sierra 3500 Hd; Dual Alternator; Diesel; Lower; Right;Silverado, Sierra 3500 Hd; Dual Alternator; Diesel; Upper;Silverado, Sierra 3500 Hd; Single Alternator; Diesel; Lower;Silverado, Sierra 3500 Hd; Single Alternator; Diesel; Upper
- Other Names: Idler Pulley, Serpentine Idler Pulley
- Item Dimensions: 4.3 x 4.4 x 4.2 inches
- Item Weight: 0.90 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12581700
- Part Description: 2021 GMC Sierra 3500 HD Serpentine Idler Pulley
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
$54.11 MSRP: $102.11
You Save: $48.00 (48%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd
- Other Names: Camshaft Gear, Timing Gear Set
- Item Dimensions: 9.1 x 8.7 x 2.6 inches
- Item Weight: 5.20 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12642320
- Replaced by: 12721405
- Part Description: 2021 GMC Sierra 3500 HD Timing Gear Set
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$152.63 MSRP: $242.36
You Save: $89.73 (38%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd
- Other Names: Camshaft Gear, Timing Gear Set
- Item Dimensions: 9.1 x 8.7 x 2.6 inches
- Item Weight: 5.20 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12642320
- Replaced by: 12721405
- Part Description: 2021 GMC Sierra 3500 HD Timing Gear Set
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$152.63 MSRP: $242.36
You Save: $89.73 (38%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd
- Other Names: Camshaft Gear, Timing Gear Set
- Item Dimensions: 9.1 x 8.7 x 2.6 inches
- Item Weight: 5.20 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12642320
- Replaced by: 12721405
- Part Description: 2021 GMC Sierra 3500 HD Timing Gear Set
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$152.63 MSRP: $242.36
You Save: $89.73 (38%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd; 6.6 Liter Diesel, Upper Components
- Other Names: Cover Seal, Front Cover Seal, Front Seal
- Item Dimensions: 6.2 x 6.1 x 1.0 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Front Cover Seal
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
$39.10 MSRP: $73.80
You Save: $34.70 (48%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd; 6.6 Liter Diesel, Upper Components
- Other Names: Cover Seal, Front Cover Seal, Front Seal
- Item Dimensions: 6.2 x 6.1 x 1.0 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Front Cover Seal
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
$39.10 MSRP: $73.80
You Save: $34.70 (48%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd
- Other Names: Camshaft
- Item Dimensions: 28.1 x 3.5 x 3.4 inches
- Item Weight: 12.10 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Camshaft
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$146.25 MSRP: $232.19
You Save: $85.94 (38%)
Product Specifications- Item Dimensions: 3.1 x 1.0 x 1.0 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Replaces: 11519184
- Part Description: 2021 GMC Sierra 3500 HD Bracket Bolt
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$5.88 MSRP: $9.71
You Save: $3.83 (40%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd
- Other Names: Camshaft
- Item Dimensions: 28.6 x 3.1 x 3.1 inches
- Item Weight: 10.30 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD CAMSHAFT ASM
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$124.86 MSRP: $206.63
You Save: $81.77 (40%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd
- Other Names: Actuator
- Item Dimensions: 10.3 x 9.7 x 4.3 inches
- Item Weight: 3.90 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Actuator
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$119.95 MSRP: $190.42
You Save: $70.47 (38%)
Product Specifications- Notes: Silverado, Sierra 3500 Hd
- Other Names: Crankshaft Gear, Drive Gear
- Item Dimensions: 5.3 x 5.2 x 1.6 inches
- Item Weight: 5.20 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Crankshaft Gear
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$36.49 MSRP: $55.05
You Save: $18.56 (34%)
Product Specifications- Other Names: Crankshaft Gear, Timing Gear
- Item Dimensions: 4.8 x 4.4 x 2.3 inches
- Item Weight: 0.90 Pounds
- Fitment Type: Direct Replacement
- Replaced by: 12713934
- Part Description: 2021 GMC Sierra 3500 HD Crankshaft Gear
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$21.58 MSRP: $35.73
You Save: $14.15 (40%)
Product Specifications- Other Names: Crankshaft Gear, Timing Gear
- Item Dimensions: 4.8 x 4.4 x 2.3 inches
- Item Weight: 0.90 Pounds
- Fitment Type: Direct Replacement
- Replaced by: 12713934
- Part Description: 2021 GMC Sierra 3500 HD Crankshaft Gear
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$21.58 MSRP: $35.73
You Save: $14.15 (40%)
Product Specifications- Other Names: Crankshaft Gear, Timing Gear
- Item Dimensions: 4.8 x 4.4 x 2.3 inches
- Item Weight: 0.90 Pounds
- Fitment Type: Direct Replacement
- Replaced by: 12713934
- Part Description: 2021 GMC Sierra 3500 HD Crankshaft Gear
More Info Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$21.58 MSRP: $35.73
You Save: $14.15 (40%)