Name: 2021 GMC Sierra 2500 HD Timing Chain 12646387
Brand: GM
SKU: GM 12646387
Price: 58.89 USD
Availability: InStock

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108 products about 2021 GMC Sierra 2500 HD Timing Belts, Chains, Cams & Related Parts found

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OEM (Genuine) 2021 GMC Sierra 2500 HD Timing Chain
PartNumber: 12646387
Product Specifications
Notes: Silverado, Sierra 2500 Hd
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 2500 HD Timing Chain
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$58.89 MSRP: ~~$93.47~~
You Save: $34.58 (37%)
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OEM (Genuine) 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain
PartNumber: 12630107
Product Specifications
Notes: Silverado, Sierra 2500 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 2500 HD Tensioner Kit-Timing Chain
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$32.23 MSRP: ~~$48.11~~
You Save: $15.88 (34%)
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OEM (Genuine) 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain
PartNumber: 12630107
Product Specifications
Notes: Silverado, Sierra 2500 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 2500 HD Tensioner Kit-Timing Chain
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$32.23 MSRP: ~~$48.11~~
You Save: $15.88 (34%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain
PartNumber: 12630107
Product Specifications
Notes: Silverado, Sierra 2500 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 2500 HD Tensioner Kit-Timing Chain
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$32.23 MSRP: ~~$48.11~~
You Save: $15.88 (34%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain
PartNumber: 12630107
Product Specifications
Notes: Silverado, Sierra 2500 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 2500 HD Tensioner Kit-Timing Chain
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$32.23 MSRP: ~~$48.11~~
You Save: $15.88 (34%)
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OEM (Genuine) 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor
PartNumber: 12658178
Product Specifications
Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators; Silverado, Sierra 2500 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 2500 HD Belt Kit-A/C Compressor
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$54.14 MSRP: ~~$89.84~~
You Save: $35.70 (40%)
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OEM (Genuine) 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor
PartNumber: 12658178
Product Specifications
Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators; Silverado, Sierra 2500 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 2500 HD Belt Kit-A/C Compressor
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$54.14 MSRP: ~~$89.84~~
You Save: $35.70 (40%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor
PartNumber: 12658178
Product Specifications
Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators; Silverado, Sierra 2500 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 2500 HD Belt Kit-A/C Compressor
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$54.14 MSRP: ~~$89.84~~
You Save: $35.70 (40%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor
PartNumber: 12658178
Product Specifications
Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators; Silverado, Sierra 2500 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 2500 HD Belt Kit-A/C Compressor
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$54.14 MSRP: ~~$89.84~~
You Save: $35.70 (40%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover Seal
PartNumber: 12634614
Product Specifications
Notes: 6.6 Liter Gas; Silverado, Sierra 2500 Hd
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 2500 HD Front Cover Seal
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$9.41 MSRP: ~~$14.93~~
You Save: $5.52 (37%)
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OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover Seal
PartNumber: 12634614
Product Specifications
Notes: 6.6 Liter Gas; Silverado, Sierra 2500 Hd
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 2500 HD Front Cover Seal
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$9.41 MSRP: ~~$14.93~~
You Save: $5.52 (37%)
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OEM (Genuine) 2021 GMC Sierra 2500 HD Vibration Damper Bolt
PartNumber: 11547372
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 2500 HD Vibration Damper Bolt
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$17.21 MSRP: ~~$28.47~~
You Save: $11.26 (40%)
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OEM (Genuine) 2021 GMC Sierra 2500 HD Module Bolt
PartNumber: 11588725
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 2500 HD Module Bolt
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$4.54 MSRP: ~~$7.19~~
You Save: $2.65 (37%)
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OEM (Genuine) 2021 GMC Sierra 2500 HD Module Bolt
PartNumber: 11588725
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 2500 HD Module Bolt
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$4.54 MSRP: ~~$7.19~~
You Save: $2.65 (37%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Idler Pulley
PartNumber: 12611935
Product Specifications
Notes: 6.6 Liter Diesel, W/O Dual Alternators, Type 1; 6.6 Liter Diesel, W/Dual Alternators, Type 1; Silverado, Sierra 2500 Hd; Dual Alternator; Diesel; Lower; Right;Silverado, Sierra 2500 Hd; Dual Alternator; Diesel; Upper;Silverado, Sierra 2500 Hd; Single Alternator; Diesel; Lower;Silverado, Sierra 2500 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 2500 HD Serpentine Idler Pulley
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
$52.69 MSRP: ~~$99.43~~
You Save: $46.74 (48%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Idler Pulley
PartNumber: 12611935
Product Specifications
Notes: 6.6 Liter Diesel, W/O Dual Alternators, Type 1; 6.6 Liter Diesel, W/Dual Alternators, Type 1; Silverado, Sierra 2500 Hd; Dual Alternator; Diesel; Lower; Right;Silverado, Sierra 2500 Hd; Dual Alternator; Diesel; Upper;Silverado, Sierra 2500 Hd; Single Alternator; Diesel; Lower;Silverado, Sierra 2500 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 2500 HD Serpentine Idler Pulley
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
$52.69 MSRP: ~~$99.43~~
You Save: $46.74 (48%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Idler Pulley
PartNumber: 12611935
Product Specifications
Notes: 6.6 Liter Diesel, W/O Dual Alternators, Type 1; 6.6 Liter Diesel, W/Dual Alternators, Type 1; Silverado, Sierra 2500 Hd; Dual Alternator; Diesel; Lower; Right;Silverado, Sierra 2500 Hd; Dual Alternator; Diesel; Upper;Silverado, Sierra 2500 Hd; Single Alternator; Diesel; Lower;Silverado, Sierra 2500 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 2500 HD Serpentine Idler Pulley
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
$52.69 MSRP: ~~$99.43~~
You Save: $46.74 (48%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Timing Gear Set
PartNumber: 12691939
Product Specifications
Notes: Silverado, Sierra 2500 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 2500 HD Timing Gear Set
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$152.63 MSRP: ~~$242.36~~
You Save: $89.73 (38%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Timing Gear Set
PartNumber: 12691939
Product Specifications
Notes: Silverado, Sierra 2500 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 2500 HD Timing Gear Set
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$152.63 MSRP: ~~$242.36~~
You Save: $89.73 (38%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Timing Gear Set
PartNumber: 12691939
Product Specifications
Notes: Silverado, Sierra 2500 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 2500 HD Timing Gear Set
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$152.63 MSRP: ~~$242.36~~
You Save: $89.73 (38%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover Seal
PartNumber: 97209341
Product Specifications
Notes: 6.6 Liter Diesel, Upper Components; Silverado, Sierra 2500 Hd
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 2500 HD Front Cover Seal
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
$38.08 MSRP: ~~$71.86~~
You Save: $33.78 (48%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover Seal
PartNumber: 97209341
Product Specifications
Notes: 6.6 Liter Diesel, Upper Components; Silverado, Sierra 2500 Hd
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 2500 HD Front Cover Seal
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
$38.08 MSRP: ~~$71.86~~
You Save: $33.78 (48%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Camshaft
PartNumber: 12633925
Product Specifications
Notes: Silverado, Sierra 2500 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 2500 HD Camshaft
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$142.40 MSRP: ~~$226.09~~
You Save: $83.69 (38%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Bracket Bolt
PartNumber: 11588741
Product Specifications
Notes: 6.6 Liter Diesel, W/O Dual Alternators, Drive Belt Tnsr; 6.6 Liter Diesel, W/Dual Alternators, Drive Belt Tnsr
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 2500 HD Bracket Bolt
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$5.72 MSRP: ~~$9.45~~
You Save: $3.73 (40%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD CAMSHAFT ASM
PartNumber: 12672469
Product Specifications
Notes: Silverado, Sierra 2500 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 2500 HD CAMSHAFT ASM
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$107.94 MSRP: ~~$187.84~~
You Save: $79.90 (43%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Actuator
PartNumber: 12689342
Product Specifications
Notes: Silverado, Sierra 2500 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 2500 HD Actuator
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$106.18 MSRP: ~~$168.56~~
You Save: $62.38 (38%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Crankshaft Gear
PartNumber: 12662371
Product Specifications
Notes: Silverado, Sierra 2500 Hd; Oil Pump Drive Gear; Silverado, Sierra 2500 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 2500 HD Crankshaft Gear
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$35.53 MSRP: ~~$53.60~~
You Save: $18.07 (34%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Crankshaft Gear
PartNumber: 12631214
Product Specifications
Notes: Silverado, Sierra 2500 Hd
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 2500 HD Crankshaft Gear
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$21.01 MSRP: ~~$34.78~~
You Save: $13.77 (40%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Crankshaft Gear
PartNumber: 12631214
Product Specifications
Notes: Silverado, Sierra 2500 Hd
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 2500 HD Crankshaft Gear
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$21.01 MSRP: ~~$34.78~~
You Save: $13.77 (40%)
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Crankshaft Gear
PartNumber: 12631214
Product Specifications
Notes: Silverado, Sierra 2500 Hd
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 2500 HD Crankshaft Gear
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$21.01 MSRP: ~~$34.78~~
You Save: $13.77 (40%)