GMB 440-8620 Engine Timing Belt Tensioner

Engine Timing Belt Tensioner for Isuzu and Honda

The GMB 440-8620 engine timing belt tensioner is built for applications that require stable belt control and consistent tension. Manufactured to meet or exceed OEM specifications, it supports proper timing belt operation on select Isuzu Rodeo, Honda Passport, Isuzu Pickup, Isuzu Amigo, and Isuzu Trooper models.

With a metal pulley, 1-groove design, and serpentine & V-belt pulley type, this timing belt tensioner is built for direct-fit service in timing belt systems that rely on accurate belt tracking and steady pulley engagement. The GMB 440-8620 is a practical replacement for worn or noisy tensioner assemblies on covered Isuzu and Honda vehicles.

Key Features

• Engine timing belt tensioner for valve train service
• Manufactured to meet or exceed OEM specifications
• Metal pulley construction for durability
• 1-groove pulley design
• Serpentine & V-belt pulley type
• Cross-reference part numbers include Dayco 84030 and Gates T41026
• Part number: 440-8620

Detailed Description

GMB 440-8620 is an engine timing belt tensioner engineered for select 1988-1997 Isuzu and Honda applications. It is listed for 1991-1997 Isuzu Rodeo, 1994-1996 Honda Passport, 1988-1995 Isuzu Pickup, 1989-1994 Isuzu Amigo, and 1988-1991 Isuzu Trooper. This part number, 440-8620, is a direct replacement option for timing belt service where maintaining correct belt tension is critical to engine operation.

This part cross-references Dayco 84030 and Gates T41026 for the same application. If you are servicing an Isuzu Rodeo timing belt tensioner, Honda Passport timing belt tensioner, or related Isuzu Pickup, Amigo, or Trooper timing belt system, this component provides an OE-spec replacement path.

Common Problems This Part Can Address

• Timing belt slack caused by a worn tensioner
• Belt noise from a failing pulley assembly
• Inconsistent belt tracking in the timing system
• Reduced tension control during engine service
• Replacement needs during timing belt maintenance on Isuzu and Honda vehicles

Installation Notes and Tips

Verify engine application by year, make, and model before installation. Inspect the timing belt, idlers, and related wear components during service, since tensioner replacement is commonly performed as part of a broader timing belt job. Confirm pulley alignment and belt routing against the vehicle service information for the specific Isuzu or Honda application.

Quality Assurance

GMB manufactures this tensioner to meet or exceed OEM specifications, supporting consistent fit and function for the listed applications. Part number 440-8620 is built for service use in timing belt systems where OE-level replacement standards matter.