MERCEDES-BENZ Belt Tensioner/Pulley - Part Code A6402020319

This genuine MERCEDES-BENZ Belt Tensioner/Pulley, part code A6402020319, is engineered to maintain the correct tension on your vehicle's accessory belt. Proper belt tension is crucial for the efficient operation of components like the alternator, power steering pump, and air conditioning compressor. Over time, belt tensioners can wear out, leading to a loose belt that can slip, causing noise and reduced performance of driven accessories. A failing tensioner pulley can also contribute to premature belt wear and potential failure. Replacing this component with a genuine MERCEDES-BENZ part ensures it meets the exact specifications of your vehicle. By installing this Belt Tensioner/Pulley, you help prevent issues such as battery charging problems, loss of power steering assist, and ineffective air conditioning. It is a vital part for maintaining the smooth and reliable operation of your engine's accessory drive system.

• Genuine MERCEDES-BENZ part for guaranteed compatibility and quality.
• Part Code: A6402020319
• Maintains optimal tension on the accessory drive belt.
• Ensures proper functioning of alternator, power steering, and A/C.
• Helps prevent belt slippage, noise, and premature wear.
• Designed for durability and long-lasting performance.
• Direct replacement for a precise fit.