Dorman 419-317 Accessory Drive Belt Tensioner Assembly - Air Conditioning

Reliable Accessory Drive Belt Tensioner for Chevrolet and Pontiac

The Dorman 419-317 accessory drive belt tensioner assembly is engineered to maintain optimal serpentine belt tension for Chevrolet Camaro, Corvette, Pontiac Firebird, and GTO models. Constructed with durable aluminum and featuring a plastic pulley, this tensioner ensures consistent performance and longevity in your vehicle's accessory drive system.

• Material: Aluminum construction for strength and corrosion resistance
• Length: 109 mm for precise fitment
• Color: Black and silver components for durability and corrosion protection
• Inside Diameter: 17 mm, Outside Diameter: 65 mm for pulley compatibility
• Width: 20 mm with a single mounting hole (8.32 mm diameter)
• Designed for serpentine belt systems with one pulley and one bearing
• Maximum adjustment range of 25 mm to accommodate belt tension variations
• Clockwise (CW) rotation for proper belt alignment

Detailed Product Description

The Dorman 419-317 accessory drive belt tensioner assembly is specifically designed for use with serpentine belt systems on select Chevrolet and Pontiac vehicles, including the Camaro, Corvette, Firebird, and GTO. The tensioner features a robust aluminum body that provides reliable strength while resisting corrosion. Its plastic pulley, measuring 65 mm in outside diameter and 20 mm in width, is equipped with a 40 mm bearing to ensure smooth rotation and reduce wear. The single mounting hole with an 8.32 mm diameter allows for secure installation, and the tensioner’s maximum adjustment range of 25 mm helps maintain proper belt tension under varying operating conditions. The clockwise rotation design aligns with factory specifications to ensure optimal belt tracking and accessory performance.

Common Applications and Issues Addressed

• Maintains proper serpentine belt tension to prevent slipping and noise
• Replaces worn or damaged belt tensioners causing belt misalignment
• Eliminates squealing or chirping noises from loose belts
• Prevents premature wear of belts and accessory components
• Restores correct belt routing and tension for engine accessories

Installation Notes and Tips

• Ensure vehicle compatibility with Chevrolet Camaro, Corvette, Pontiac Firebird, or GTO models before installation
• Use appropriate tools to remove the old tensioner and install the new assembly securely
• Check belt condition and replace if worn or damaged during tensioner replacement
• Verify proper belt alignment and tension after installation to avoid premature wear
• Follow manufacturer torque specifications for mounting bolt installation

Quality Assurance and Warranty

Dorman manufactures the 419-317 accessory drive belt tensioner assembly to meet or exceed OEM standards for fit, form, and function. The aluminum construction and quality bearing components contribute to long service life. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship for a specified period. Always refer to Dorman’s warranty documentation for detailed terms and conditions.