Dorman 419-002 Accessory Drive Belt Tensioner Assembly

Dorman 419-002 Belt Tensioner Assembly

This Dorman accessory drive belt tensioner assembly is a direct replacement for the original equipment unit on select Ford Super Duty trucks. Built for the serpentine belt system, it is engineered to match OE fit and function for dependable belt control.

Key Features

• Replacement accessory drive belt tensioner assembly for serpentine belt systems
• Designed to match original equipment fit and function
• Steel pulley with one pulley bearing for durable operation
• Counter-clockwise tensioner rotation
• Fits 2008-2010 Ford F-250 Super Duty and 2008-2010 Ford F-350 Super Duty with extra heavy duty alternator
• Dorman 419-002 for direct-fit service on specified applications

Detailed Description

The Dorman 419-002 belt tensioner assembly is built for Ford F-250 Super Duty and Ford F-350 Super Duty applications equipped with an extra heavy duty alternator. It is designed around the original belt routing and tensioning requirements of the serpentine drive system, with a steel pulley, 40 mm pulley bearing diameter, and counter-clockwise rotation. This part cross-references Gates 5741 and Dayco 89657 for the same application.

For buyers searching for a 2008-2010 Ford F-250 Super Duty belt tensioner assembly or a 2008-2010 Ford F-350 Super Duty serpentine belt tensioner, Dorman 419-002 provides a direct replacement option that follows OE-style dimensions and mounting requirements.

Common Problems It Can Address

• Belt squeal caused by weak or inconsistent tension
• Serpentine belt tracking issues from a worn pulley
• Reduced belt control from a failing tensioner spring or pivot
• Accessory drive noise related to tensioner bearing wear
• Drive belt instability on Ford Super Duty trucks with an extra heavy duty alternator

Installation Notes and Tips

Verify engine accessory layout and belt routing before installation. Confirm that the vehicle is a 2008-2010 Ford F-250 Super Duty or 2008-2010 Ford F-350 Super Duty with extra heavy duty alternator equipment, and compare the original tensioner orientation, pulley size, and mounting points to Dorman 419-002 before service. Inspect the serpentine belt and adjacent pulleys for wear at the same time to help prevent repeat belt noise or tension issues.

Quality Assurance

Dorman manufactures this replacement belt tensioner assembly with quality components and tests it for reliable performance. It is engineered to match the fit and function of the original equipment part on the listed Ford Super Duty applications.