Dorman 420-160 Engine Timing Belt Tensioner

Engine Timing Belt Tensioner for Isuzu Rodeo and Trooper

Dorman 420-160 is an automatic hydraulic engine timing belt tensioner built for specified Isuzu applications. It is made from aluminum alloy with a die cast aluminum contact surface to match original fit and function while supporting reliable belt tension control.

Compatible With 1995-1997 Isuzu Rodeo and 1995-1997 Isuzu Trooper applications that use this adjuster-style timing belt tensioner. The Dorman 420-160 is a standard replacement part for service work where consistent hydraulic tensioning is needed.

Key Features

• Automatic hydraulic tensioner style for timing belt systems
• Aluminum alloy construction for durable service
• Die cast aluminum contact surface
• Standard replacement design for original-equipment fit and function
• No bracket included and no pulley included
• Fits specified Isuzu Rodeo and Isuzu Trooper applications

Detailed Description

This Dorman timing belt tensioner is engineered for 1995-1997 Isuzu Rodeo and 1995-1997 Isuzu Trooper applications that require an adjuster-style hydraulic tensioner. Part number 420-160 is built to match the original component’s fit and operating characteristics, helping maintain proper timing belt tension in the engine valve train system. The aluminum alloy body and die cast aluminum contact surface are selected for strength and consistent wear performance in standard replacement service.

This part cross-references Gates T41028 and Four Seasons 85026 for the same application. Use Dorman 420-160 when servicing timing belt systems on Isuzu Rodeo and Trooper models that call for this configuration.

Common Issues This Part Can Address

• Timing belt slack caused by a worn hydraulic tensioner
• Noise from a tensioner that no longer maintains belt pressure
• Irregular belt tension during engine operation
• Service replacement for a failed original adjuster assembly
• Timing belt maintenance on 1995-1997 Isuzu Rodeo and Trooper engines

Installation Notes and Tips

Verify engine code and existing tensioner style before installation. Inspect the timing belt, idlers, and related valve train components at the same time, since wear in one part can affect the rest of the system. Follow the vehicle service procedure for belt timing and tension setting, and confirm the hydraulic tensioner is properly seated before final assembly.

Quality Assurance

Dorman designs this engine timing belt tensioner as a standard replacement part for specified applications, using materials selected for dependable operation and durability. Part number 420-160 is built to align with original fit and function requirements for the listed Isuzu applications.