Accessory Belt

Serpentine belts replace individual accessory belts. A single serpentine belt drives multiple accessories: alternator, water pump, power steering, etc.

Euromotiv suggests that you replace the belt tensioner whenever you replace the serpentine belt. The tensioner contains a coiled tension spring that weakens over time, allowing the belt to run loose. This causes belt slippage and noise, poor accessory operation, and premature belt failure. Replacing belt and tensioner as a pair ensure a longer service life for both.