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2021 GMC Sierra 2500 HD Timing Belts, Chains, Cams & Related Parts

Name: 2021 GMC Sierra 2500 HD Timing Chain 12646387
Brand: GM
SKU: GM 12646387
Price: 60.94 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
$60.94 MSRP: ~~$106.09~~
You Save: $45.15 (43%)
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 2500 HD Timing Chain
More Info
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OEM (Genuine) 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain
PartNumber: 12630107
$37.62 MSRP: ~~$65.49~~
You Save: $27.87 (43%)
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, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain
PartNumber: 12630107
$37.62 MSRP: ~~$65.49~~
You Save: $27.87 (43%)
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, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain
PartNumber: 12630107
$37.62 MSRP: ~~$65.49~~
You Save: $27.87 (43%)
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, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain
PartNumber: 12630107
$37.62 MSRP: ~~$65.49~~
You Save: $27.87 (43%)
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, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor
PartNumber: 12658178
$43.31 MSRP: ~~$94.33~~
You Save: $51.02 (55%)
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, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor
PartNumber: 12658178
$43.31 MSRP: ~~$94.33~~
You Save: $51.02 (55%)
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, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor
PartNumber: 12658178
$43.31 MSRP: ~~$94.33~~
You Save: $51.02 (55%)
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, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor
PartNumber: 12658178
$43.31 MSRP: ~~$94.33~~
You Save: $51.02 (55%)
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, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover Seal
PartNumber: 12634614
$12.75 MSRP: ~~$21.09~~
You Save: $8.34 (40%)
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, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover Seal
PartNumber: 12634614
$12.75 MSRP: ~~$21.09~~
You Save: $8.34 (40%)
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, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Vibration Damper Bolt
PartNumber: 11547372
$25.81 MSRP: ~~$41.00~~
You Save: $15.19 (38%)
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, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Module Bolt
PartNumber: 11588725
$4.88 MSRP: ~~$8.05~~
You Save: $3.17 (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 2500 HD Module Bolt
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Module Bolt
PartNumber: 11588725
$4.88 MSRP: ~~$8.05~~
You Save: $3.17 (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 2500 HD Module Bolt
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Idler Pulley
PartNumber: 12611935
$56.38 MSRP: ~~$106.39~~
You Save: $50.01 (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 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, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Idler Pulley
PartNumber: 12611935
$56.38 MSRP: ~~$106.39~~
You Save: $50.01 (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 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, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Idler Pulley
PartNumber: 12611935
$56.38 MSRP: ~~$106.39~~
You Save: $50.01 (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 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, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover Seal
PartNumber: 97209341
$41.14 MSRP: ~~$68.11~~
You Save: $26.97 (40%)
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, AT4X, Base, Denali, Denali Ultimate, Pro, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover Seal
PartNumber: 97209341
$41.14 MSRP: ~~$68.11~~
You Save: $26.97 (40%)
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, AT4X, Base, Denali, Denali Ultimate, Pro, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
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OEM (Genuine) 2021 GMC Sierra 2500 HD Bracket Bolt
PartNumber: 11588741
$6.13 MSRP: ~~$10.11~~
You Save: $3.98 (40%)
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 2500 HD Bracket Bolt
More Info
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OEM (Genuine) 2021 GMC Sierra 2500 HD CAMSHAFT ASM
PartNumber: 12672469
$131.10 MSRP: ~~$216.96~~
You Save: $85.86 (40%)
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, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Crankshaft Gear
PartNumber: 12631214
$22.49 MSRP: ~~$37.24~~
You Save: $14.75 (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 2500 HD Crankshaft Gear
More Info
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OEM (Genuine) 2021 GMC Sierra 2500 HD Crankshaft Gear
PartNumber: 12631214
$22.49 MSRP: ~~$37.24~~
You Save: $14.75 (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 2500 HD Crankshaft Gear
More Info
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OEM (Genuine) 2021 GMC Sierra 2500 HD Crankshaft Gear
PartNumber: 12631214
$22.49 MSRP: ~~$37.24~~
You Save: $14.75 (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 2500 HD Crankshaft Gear
More Info
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OEM (Genuine) 2021 GMC Sierra 2500 HD Bearings
PartNumber: 19260879
$32.72 MSRP: ~~$54.19~~
You Save: $21.47 (40%)
Product Specifications
Notes: Silverado, Sierra 2500 Hd; No. 3
Other Names: Bearing
Item Dimensions: 3.3 x 3.2 x 3.1 inches
Item Weight: 0.50 Pounds
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Bearings
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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OEM (Genuine) 2021 GMC Sierra 2500 HD Bearings
PartNumber: 19260877
$32.72 MSRP: ~~$54.19~~
You Save: $21.47 (40%)
Product Specifications
Notes: Silverado, Sierra 2500 Hd; No. 1 & 5
Other Names: Bearing
Item Dimensions: 3.4 x 3.2 x 3.2 inches
Item Weight: 0.50 Pounds
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Bearings
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, 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 FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Bearings
PartNumber: 19260878
$32.72 MSRP: ~~$54.19~~
You Save: $21.47 (40%)
Product Specifications
Notes: Silverado, Sierra 2500 Hd; No. 2 & 4
Other Names: Bearing
Item Dimensions: 3.5 x 3.1 x 3.1 inches
Item Weight: 0.50 Pounds
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Bearings
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, 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 FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover
PartNumber: 12691692
$58.21 MSRP: ~~$96.34~~
You Save: $38.13 (40%)
Product Specifications
Notes: 6.6 Liter Gas; Silverado, Sierra 2500 Hd
Other Names: Front Cover, Timing Cover
Fitment Type: Direct Replacement
Replaces: 12693267, 12621363, 12688496
Part Description: 2021 GMC Sierra 2500 HD Front Cover
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover
PartNumber: 12691692
$58.21 MSRP: ~~$96.34~~
You Save: $38.13 (40%)
Product Specifications
Notes: 6.6 Liter Gas; Silverado, Sierra 2500 Hd
Other Names: Front Cover, Timing Cover
Fitment Type: Direct Replacement
Replaces: 12693267, 12621363, 12688496
Part Description: 2021 GMC Sierra 2500 HD Front Cover
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
View Related Parts
OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Tensioner
PartNumber: 12673657
$64.51 MSRP: ~~$106.79~~
You Save: $42.28 (40%)
Product Specifications
Notes: 6.6 Liter Diesel, W/O Dual Alternators, Serpentine Belt; 6.6 Liter Diesel, W/Dual Alternators, Serpentine Belt; Silverado, Sierra 2500 Hd; Diesel; Main
Other Names: Belt Tensioner, Serpentine Tensioner
Item Dimensions: 8.2 x 5.2 x 5.1 inches
Item Weight: 2.20 Pounds
Fitment Type: Direct Replacement
Part Description: 2021 GMC Sierra 2500 HD Serpentine Tensioner
More Info
Vehicle Fitment
2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL