Dorman 419-020 Accessory Drive Belt Tensioner Assembly

Reliable Accessory Drive Belt Tensioner for Chrysler and Dodge

The Dorman 419-020 accessory drive belt tensioner assembly is designed to maintain proper tension on the serpentine belt system in Chrysler and Dodge vehicles. Engineered for models like the Caravan, Sebring, and Stratus, this tensioner ensures consistent belt performance and helps prevent slippage or premature wear.

• Compatible with Chrysler Caravan, Dodge Sebring, and Dodge Stratus
• Serpentine belt type tensioner with a single composite pulley
• Pulley outside diameter: 70 mm; inside diameter: 17 mm
• Width approximately 24.9 to 25 mm for precise fit
• Counterclockwise rotation for proper belt alignment
• Includes one pulley bearing with a 40 mm diameter

Technical Specifications and Features

The Dorman 419-020 tensioner assembly features a composite pulley designed to reduce weight and resist corrosion. The pulley has no grooves, supporting a smooth serpentine belt operation. With a single pulley bearing measuring 40 mm in diameter, the tensioner provides stable and quiet belt movement. The tensioner rotates counterclockwise, matching the belt routing on compatible Chrysler and Dodge models. Its dimensions, including an outside diameter of 70 mm and width near 25 mm, ensure a precise fit within the accessory drive belt system.

Applications and Common Issues Addressed

This accessory drive belt tensioner assembly is used to maintain optimal tension on the serpentine belt, which drives multiple engine accessories. It is compatible with Chrysler Caravan, Dodge Sebring, and Dodge Stratus vehicles, making it a direct replacement part for these models. The Dorman 419-020 helps resolve issues such as:

• Excessive belt noise or squealing due to improper tension
• Premature belt wear or damage from slack or misalignment
• Accessory drive system failure caused by belt slippage
• Vibration or pulley bearing wear affecting belt performance

Installation Notes and Tips

When installing the Dorman 419-020 tensioner assembly, ensure the serpentine belt is properly routed according to the vehicle’s service manual. The counterclockwise rotation of the tensioner must align with the belt path to maintain correct tension. Inspect the belt for wear and replace it if necessary during installation. Use appropriate tools to relieve tension safely and avoid damage to the tensioner or belt components.

Quality Assurance and Warranty Information

Dorman manufactures the 419-020 tensioner assembly to meet or exceed OEM specifications for fit, form, and function. The composite pulley and sealed bearing design contribute to durability and long service life. This part is backed by Dorman’s limited warranty, providing coverage against defects in materials and workmanship under normal use conditions.