Browse New OEM serpentine belts, belt tensioners, and idler pulleys for GM vehicles including Chevrolet Volt, Camaro, Cadillac CTS, and more. Every component is factory-original — sourced from GM surplus, never installed.

The serpentine belt system drives your alternator, power steering pump, A/C compressor, and water pump. A complete OEM service kit — belt, tensioner, and idler — eliminates all wear components at once and uses factory-correct specifications for belt length, tensioner spring rate, and pulley alignment.

Verify part numbers against your engine code and build date, as belt routing and component specifications vary.