Dorman 419-604 Accessory Drive Belt Tensioner Pulley

Durable Accessory Drive Belt Tensioner Pulley for Select Vehicles

The Dorman 419-604 accessory drive belt tensioner pulley is engineered to maintain proper tension on serpentine belts in a range of vehicles including Cadillac, Chevrolet, Ford, and Toyota models. Constructed from polyamide, this pulley offers reliable performance and precise fitment for specific applications.

• Material: High-strength polyamide for durability and wear resistance
• Inside Diameter: 17 mm for accurate belt alignment
• Outside Diameter: 73 mm ensuring compatibility with serpentine belt systems
• Groove Quantity: 6 grooves to match belt profile
• Width: 20 mm and 28 mm dimensions for proper belt seating
• Single pulley bearing with 12 mm width for smooth rotation
• Designed for specific fitment on select makes and models
• Package includes one idler pulley without mounting hardware

Product Details and Specifications

The Dorman 419-604 accessory drive belt tensioner pulley is designed to work with serpentine belt systems, providing consistent tension and reducing belt slippage. Its polyamide construction offers resistance to heat and wear, extending the service life of the pulley. The pulley features six grooves and precise dimensions including a 17 mm inside diameter and 73 mm outside diameter, ensuring compatibility with the belt and tensioner assembly. The single bearing with a 12 mm width supports smooth and quiet operation under various driving conditions.

Compatible Vehicles and Applications

This tensioner pulley is compatible with a wide range of vehicles, including but not limited to:

• Cadillac CTS, Escalade, and DeVille models
• Chevrolet Silverado 1500, Suburban 1500, and Tahoe
• Ford Explorer, Mustang, and Ranger
• Toyota Camry, Tacoma, and 86
• Other makes such as GMC, Lincoln, Mazda, Mercury, Oldsmobile, Pontiac, Scion, Subaru, Suzuki

Use the Dorman 419-604 pulley to replace worn or damaged idler pulleys in these specific vehicles to maintain proper belt tension and accessory function.

Common Issues Addressed by This Pulley

• Eliminates belt slippage caused by worn or damaged pulleys
• Prevents premature serpentine belt wear and failure
• Reduces noise from misaligned or failing tensioner components
• Maintains proper tension for alternator, power steering, and A/C compressor operation
• Improves overall accessory drive system reliability

Installation Notes and Tips

Ensure the vehicle is safely supported and the serpentine belt is properly released before removing the old pulley. Verify the pulley dimensions and groove count match the original part. The Dorman 419-604 pulley does not include mounting hardware, so retain or replace bolts as necessary. After installation, inspect belt alignment and tension to confirm correct operation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The 419-604 accessory drive belt tensioner pulley undergoes rigorous quality control to ensure durability and performance. Please refer to Dorman's warranty policy for specific coverage details.