Dorman 419-326 Accessory Drive Belt Tensioner Assembly

Overview of Dorman Accessory Drive Belt Tensioner Assembly

The Dorman 419-326 accessory drive belt tensioner assembly is engineered for Chrysler, Dodge, and Plymouth Neon vehicles. Designed with durable aluminum construction and a plastic pulley, this tensioner ensures reliable serpentine belt performance and proper tensioning for your vehicle's accessory drive system.

• Constructed from lightweight aluminum for strength and corrosion resistance
• Compatible with serpentine belt systems on Chrysler, Dodge, and Plymouth Neon models
• Features a single plastic pulley with a 40 mm bearing diameter for smooth operation
• Includes 9 mounting holes with varied diameters (10.8 mm, 10.5 mm, 8.5 mm) for secure installation
• Maximum adjustment range of 120 mm to maintain optimal belt tension
• Designed for clockwise (CW) rotation to match factory specifications

Detailed Product Description

The Dorman 419-326 accessory drive belt tensioner assembly is a critical component in maintaining the correct tension on the serpentine belt of Chrysler, Dodge, and Plymouth Neon vehicles. Its aluminum body provides a balance of durability and lightweight performance, while the black and silver finish offers corrosion resistance. The tensioner features a single plastic pulley equipped with one bearing, measuring 40 mm in diameter, which facilitates smooth belt movement and reduces wear. With an inside diameter of 17 mm, an outside diameter of 70 mm, and a width of 19 mm, this tensioner fits precisely within the accessory drive system. The assembly includes nine mounting holes with diameters of 10.8 mm, 10.5 mm, and 8.5 mm, ensuring compatibility with factory mounting points. The maximum adjustment range of 120 mm allows for proper belt tensioning, preventing slippage and premature belt failure.

Common Applications and Issues Addressed

• Restores proper tension to serpentine belts on Chrysler, Dodge, and Plymouth Neon vehicles
• Eliminates belt squealing caused by loose or worn tensioners
• Prevents accessory drive belt slippage and uneven wear
• Addresses noise and vibration issues related to faulty belt tensioners
• Supports the longevity of alternator, power steering, and air conditioning belt-driven components

Installation Notes and Tips

When installing the Dorman 419-326 tensioner assembly, ensure the serpentine belt is properly routed according to the vehicle’s service manual. Verify that the tensioner rotates clockwise (CW) as specified to maintain correct belt tension. Use the appropriate tools to align the mounting holes and secure the tensioner firmly to avoid misalignment. Inspect the serpentine belt for wear and replace if necessary to ensure optimal performance.

Quality Assurance and Warranty

Dorman manufactures this accessory drive belt tensioner assembly to meet or exceed OEM specifications for Chrysler, Dodge, and Plymouth Neon vehicles. The aluminum construction and precision-engineered pulley bearing contribute to reliable operation and durability. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship.