Dorman 419-386 Accessory Drive Belt Tensioner Assembly

Accessory Drive Belt Tensioner for Audi and Volkswagen

Dorman 419-386 is an accessory drive belt tensioner assembly built to match the fit and function of the original equipment unit on specified Audi and Volkswagen applications. It uses an aluminum housing, a steel pulley, and a clockwise rotation design for serpentine belt systems.

For Audi A4, A6, S4, RS4, Allroad Quattro, Cabriolet, A4 Quattro, A6 Quattro, and Volkswagen Passat applications, this Dorman 419-386 replacement is engineered for direct service on the accessory drive belt system.

Key Features

• OE-style replacement belt tensioner assembly for serpentine belt systems
• Aluminum body with steel pulley for durable construction
• Clockwise tensioner rotation
• Single-pulley design with one pulley bearing
• Designed to match original fit and function on specified vehicles
• Cross-reference part numbers include Continental 49267 and Dayco 89842

Detailed Description

Dorman 419-386 is an accessory drive belt tensioner assembly for vehicles that use a serpentine belt layout. The assembly is built with an aluminum housing, a steel pulley, and a 40 mm pulley bearing diameter, with a 76 mm outside diameter and 25 mm width. Its 45 mm maximum adjustment range and clockwise rotation help it align with the original belt routing and tensioning requirements on covered Audi and Volkswagen models. This part number, 419-386, is a direct-fit replacement for the original equipment tensioner on selected applications.

Compatible With 1992-1994 Audi S4, 1994-1998 Audi Cabriolet, 1995-2001 Audi A6, 1995-2004 Audi A6 Quattro, 1996-2001 Audi A4, 1996-2001 Audi A4 Quattro, 1998-2002 Volkswagen Passat, 2000-2002 Audi S4, 2001-2005 Audi Allroad Quattro, and 2002 Audi RS4. The Dorman 419-386 is also cross-referenced to Febi-Bilstein 36141 and URO 078903133AB for the same application.

What It Helps Address

• Belt squeal caused by weak or inconsistent tension
• Serpentine belt tracking issues from a worn tensioner pulley
• Accessory drive noise related to bearing wear
• Loss of proper belt tension on the engine accessory drive
• Service replacement for a damaged or seized tensioner assembly

Installation Notes and Tips

Verify belt routing, mounting hole diameter, and tensioner rotation before installation. This assembly uses one mounting hole and is designed for serpentine belt applications, so confirm the vehicle’s accessory drive layout matches the listed fitment. Inspect the belt, idlers, and adjacent pulleys during service to avoid repeat noise or tension issues.

Quality Assurance

This replacement tensioner assembly is engineered with quality components and extensively tested for reliable performance. It is designed to match the fit and function of the original equipment part on specified vehicles.