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Factory GM Belts, Pulleys & Brackets

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Belt Idler Primary Pulley

GM 12708716

Silverado, Sierra 2500 HD. Single alternator. Diesel. Center. Silverado, Sierra 3500 HD. Dual alternator. Lower. Repair noisy idler...

$106.48

MSRP $191.87

Save $85.39

44.5% Off

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Drive Belt Idler Pulley

GM 12729702

Supercharger belt. Corvette. Without grooves. With supercharger, smooth, without zr1.

$113.10

MSRP $181.21

Save $68.11

37.6% Off

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Drive Belt Idler Pulley

GM 55571052

Equinox, Terrain. 1.6l diesel. Cruze. 1.6l. Helps repair noisy idler pulley bearing This GM Genuine Part is designed, engineered, and...

$23.42

MSRP $36.02

Save $12.60

35% Off

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Drive Belt Idler Pulley

GM 55502363

Cascada. Repair noisy idler pulley bearing

$23.67

MSRP $41.52

Save $17.85

43% Off

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Drive Belt Idler Pulley

GM 19418226

6.0 & 6.2L. Serpentine belt tens. With ac, 5.7L. GTO. Repair noisy idler pulley bearing Manufactured to GM OE specification for...

$56.97

MSRP $102.64

Save $45.67

44.5% Off

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Supercharger Belt Idler Pulley

GM 12665035

With supercharger, smooth, with zr1. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...

$86.56

MSRP $136.78

Save $50.22

36.7% Off

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Supercharger Belt Idler Pulley

GM 12678515

Supercharger belt. Corvette. With grooves. Lower. 6.2L with superchager. grooved 35mm. Camaro. 6.2l. With supercharger. Grooved. 96mm....

$59.83

MSRP $94.56

Save $34.73

36.7% Off

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Timing Belt Idler Pulley

GM 55187100

Cruze. Helps direct and help maintain the engine timing belt to help keep it in its correct position

$52.95

MSRP $81.48

Save $28.53

35% Off

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Drive Belt Idler Pulley

GM 12580773

Express, savana. Gas engines. S-series. 4.3l. Without heavy duty heater. 4.3L, with ac. With ac, 7.4L. 5.7L, with ac. 6 cylinder. 1/2,...

$50.86

MSRP $89.22

Save $38.36

43% Off

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Supercharger Belt Idler Pulley

GM 12665845

Camaro. 6.2l. With supercharger. Smooth. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...

$73.09

MSRP $115.52

Save $42.43

36.7% Off

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Drive Belt Idler Pulley

GM 12695659

2018-20. Silverado, Sierra 2500 HD. Single alternator. Silverado, Sierra 3500 HD. Dual alternator. Gas. Upper. Repair noisy idler pulley...

$31.92

MSRP $56.01

Save $24.09

43% Off

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Drive Belt Idler Pulley

GM 55500388

Silverado, sierra. 3.0l diesel. Repair noisy idler pulley bearing

$18.67

MSRP $31.12

Save $12.45

40% Off

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Keep Your Engine Running Smoothly with Belts, Pulleys, & Brackets

Belts, pulleys, and brackets work together to drive essential engine accessories, including the alternator, power steering, and air conditioning. Over time, belts can fray, pulleys may wear, and brackets may loosen, which can create noise or reduce engine efficiency. Genuine GM components are designed to meet factory specifications and provide long-lasting reliability for vehicles like the Buick Enclave.

The Importance of OEM Components

Using OEM belts, pulleys, and brackets ensures proper tension and alignment, reducing stress on connected systems such as hoses and clamps. Aftermarket alternatives may wear unevenly or fail prematurely, which can affect engine performance and accessory function. Genuine GM parts help maintain smooth, quiet operation for the Enclave.

Signs You Need Replacement

Look for these warning signs:

Squealing or chirping engine noises.
Visible cracks or fraying on belts.
Loose or misaligned pulleys.
Bent or corroded brackets.
Loss of power steering or AC function.
Burning smell from friction.
Engine stalling or difficulty starting.

Related Parts to Inspect

Other components to check include:

Hoses and clamps
Water pumps
Tensioners
Alternator

Keep your Buick Enclave running smoothly with genuine GM belts, pulleys, and brackets. For reliable performance, contact our team to order parts directly.