Dorman 419-1007 Accessory Drive Belt Tensioner - Accessory Drive

Accessory Drive Belt Tensioner Overview

Dorman 419-1007 is an accessory drive belt tensioner for serpentine belt systems. It helps maintain proper belt tension so the drive belt stays aligned and the accessory drive system operates as intended. This Dorman 419-1007 tensioner is a direct replacement-style service part for vehicles that use a serpentine belt setup.

Key Features

• Accessory drive belt tensioner for serpentine belt systems
• Aluminum construction with a silver finish
• Two mounting holes for secure installation
• Measures 8.5 in. long, 6 in. wide, and 14 in. outside diameter
• Inside diameter: 56 mm; mounting hole diameter: 13 mm
• Compatible with applications that use a serpentine belt tensioner assembly

Detailed Description

Built for accessory drive belt service, the Dorman 419-1007 tensioner helps keep serpentine belt tension within the proper operating range. The aluminum housing and compact assembly dimensions support a clean OE-style replacement for vehicles that rely on an automatic belt tensioner. If you are servicing a belt drive on a Honda Civic, Toyota Camry, or similar passenger vehicle application, this part number 419-1007 is the type of component used to restore belt tension control after wear or noise develops.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Is Used For

• Correcting serpentine belt slack
• Reducing belt chirp, squeal, or flutter caused by weak tension
• Restoring stable accessory drive operation
• Replacing a worn automatic belt tensioner assembly
• Supporting proper belt tracking on the drive system

Installation Notes and Tips

Verify belt routing and mounting-hole alignment before installation. Inspect the serpentine belt, pulleys, and related accessory drive components at the same time, since worn parts can shorten tensioner life. For best results, replace the tensioner when servicing the serpentine belt if the assembly shows play, noise, or reduced spring tension. Confirm vehicle-specific fitment by year, make, and model before ordering Dorman 419-1007.

Quality Assurance

Dorman is a recognized aftermarket brand for replacement drivetrain and chassis components. Part number 419-1007 is built as an aluminum accessory drive belt tensioner for serpentine belt applications and is intended to meet the needs of routine belt system service.