Four Seasons Accessory Drive Belt Idler Pulley Eccentric Arm

The Four Seasons Accessory Drive Belt Idler Pulley Eccentric Arm is a replacement drive belt idler pulley eccentric cam, also called a belt tensioner idler arm or serpentine belt idler arm. It helps keep the accessory drive belt correctly aligned and tensioned. This supports reliable operation of the alternator, power steering pump, water pump and air conditioning compressor.

Key Features:

• Eccentric arm design lets you set the belt position and tension accurately
• Helps guide the serpentine belt along its routing and maintain even belt contact
• Made as a direct replacement for worn or noisy idler components
• Built by Four Seasons, a brand known for engine cooling and climate control parts
• Helps prevent belt slip, squealing and premature belt wear

Replacing a worn idler pulley eccentric arm along with the drive belt helps restore smooth, quiet accessory drive performance. Choose the item in this product line that matches your application.