Dorman 419-017 Accessory Drive Belt Tensioner Assembly

Accessory Drive Belt Tensioner for OE-Style Replacement

This Dorman accessory drive belt tensioner assembly is built to match the fit and function of the original equipment unit on specified vehicles. It is designed for serpentine belt systems and uses quality components for dependable operation in Chevrolet S10 and GMC Sonoma applications.

Key Features

• Direct replacement accessory drive belt tensioner assembly
• Designed for serpentine belt systems
• Clockwise tensioner rotation
• Steel AISI 1008 pulley material
• Single-groove pulley with one pulley bearing
• 40 mm pulley bearing diameter
• Engineered to match original equipment fit and function
• Cross-references Gates 38187 and Dayco 89310 for the same application

Detailed Product Overview

Dorman 419-017 is an accessory drive belt tensioner assembly for vehicles that use a serpentine belt layout. The assembly is built around a 90 mm outside diameter pulley with a 30 mm width and 17 mm inside diameter, helping maintain proper belt tension in the accessory drive system. Its steel pulley construction and tested design support consistent operation in the specified Chevrolet S10 and GMC Sonoma model years.

Fits 1994-1997 Chevrolet S10 and fits 1994-1997 GMC Sonoma. If you are searching for a replacement belt tensioner assembly for a 1994-1997 Chevrolet S10 or 1994-1997 GMC Sonoma, Dorman 419-017 provides an OE-style service part for the original belt drive setup.

Common Problems This Part Can Address

• Loss of proper serpentine belt tension
• Belt squeal caused by a worn tensioner assembly
• Uneven belt tracking from a failing pulley bearing
• Accessory drive noise from a damaged tensioner pulley
• Reduced belt stability in the engine accessory drive system

Installation Notes and Tips

Verify clockwise rotation, pulley dimensions, and belt routing before installation. Confirm the vehicle application against the listed fitment for 1994-1997 Chevrolet S10 and 1994-1997 GMC Sonoma. Inspect the serpentine belt, idler pulleys, and related accessory drive components during service so the new tensioner can operate against a properly aligned belt path.

Quality Assurance

This Dorman replacement tensioner assembly is engineered with quality components and extensively tested to deliver reliable performance on the specified applications. It is designed as a direct-fit replacement for the original equipment belt tensioner on listed vehicles.