Belts, Pulleys & Brackets for 2025 GMC Sierra 2500 HD
Select Belts, Pulleys & Brackets part
Multi-Purpose Nut
ACDelco
11546389
GM Genuine Parts Nuts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are...
$0.05
Fits Your Vehicle
Serpentine Tensioner
GM
12717891
Silverado, Sierra 2500 HD. Accessory. 6.6L diesel, with dual alternators, drive belt. Silverado, Sierra 3500 HD.
Positions: Secondary
$72.86
MSRP $116.75
Save $43.89
37.6% Off Fits Your Vehicle
M10x1.5x85 Multi-Purpose Bolt
GM
11588749
GM M10x1. 5x85 Multi-Purpose Bolt (Part Number: 11588749) is a heavy hex acorn flange bolt sized M10x1.5x85 for general underhood...
$60.76
Idler Pulley
GM
12729057
Silverado, Sierra 2500 HD. Dual alternator. Gas. Lower. Ribbed. Silverado, Sierra 3500 HD.
$62.62
MSRP $114.40
Save $51.78
45.3% Off 
Drive Belt Tensioner
ACDelco
12673657
GM Genuine Parts Drive Belt Tensioner Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General...
Positions: Air Conditioning and Power Steering
$69.68
Fits Your Vehicle
Multi-Purpose Nut
ACDelco
11517996
GM Genuine Parts Nuts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are...
$6.94
Fits Your Vehicle
Drive Belt
GM
12732424
Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. 6.6L diesel, with dual alternators.
$28.57
MSRP $54.14
Save $25.57
47.2% Off 
Power Steering Pump Pulley
GM
12682902
GM Genuine Parts Power Steering Pump Pulley (Part Number: 12682902) is a pulley assembly for the power steering pump designed to...
$21.52
MSRP $29.05
Save $7.53
25.9% Off Fits Your Vehicle
M8x1.25x40.7 Multi-Purpose Bolt
GM
11588726
GM M8x1. 25x40. 7 Multi-Purpose Bolt (Part Number: 11588726) is a heavy hex acorn flange-head bolt supplied as a genuine GM fastener...
$7.22
MSRP $8.46
Save $1.24
14.7% Off 
Multi-Purpose Nut
GM
11546365
GM Multi-Purpose Nut (Part Number: 11546365) is a general-purpose fastening nut used in multiple OEM assembly locations. Function:...
$10.63
Drive Belt Tensioner
GM
12673657
GM Drive Belt Tensioner (Part Number: 12673657) is a drive belt tensioner assembly that maintains correct serpentine belt tension to...
Positions: Air Conditioning and Power Steering
$69.68
MSRP $111.65
Save $41.97
37.6% Off Fits Your Vehicle
Multi-Purpose Bolt
ACDelco
11546404
GM Genuine Parts Bolts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are...
Positions: Intermediate
$6.14
Fits Your Vehicle
Multi-Purpose Bolt
ACDelco
11588730
GM Genuine Parts Bolts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are...
$6.38
Fits Your Vehicle
Accessory Drive Auxiliary Belt
ACDelco
12717890
GM Genuine Parts Serpentine Belts are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These...
Positions: Secondary
Fits Your Vehicle
Idler Pulley
GM
12729056
Silverado, Sierra 2500 HD. Lower. 6.6L gas, with dual alternators, smooth. Silverado, Sierra 3500 HD.
$96.69
MSRP $176.62
Save $79.93
45.3% Off 
Engine Cooling Fan Motor Cover
GM
12647745
6.6L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$3.64
MSRP $4.86
Save $1.22
25.1% Off Multi-Purpose Nut
GM
11517996
GM Multi-Purpose Nut (Part Number: 11517996) is a nut used in suspension and related assemblies to secure components. Function:...
$6.94
MSRP $8.12
Save $1.18
14.5% Off Fits Your Vehicle
Belt Idler Primary Pulley
GM
12708716
GM Genuine Parts Belt Idler Primary Pulley (Part Number: 12708716) is an idler pulley assembly that helps route accessory drive belts...
$105.03
MSRP $191.87
Save $86.84
45.3% Off Fits Your Vehicle
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