GMB 420-8820 Engine Timing Belt Tensioner

Engine Timing Belt Tensioner for Chrysler and Dodge

Restore proper timing belt control with this GMB engine timing belt tensioner, part number 420-8820. It is manufactured to meet or exceed OEM specifications and is built with a metal pulley for dependable belt tracking in service.

• Engine timing belt tensioner for valve train applications
• Metal pulley construction for durability
• Pulley / belt type: Serpentine & V-Belt
• Pulley groove quantity: 1
• Direct-fit replacement for select Chrysler, Dodge, and Plymouth vehicles

Fitment and Application Details

Compatible with a wide range of 1982-1988 Chrysler, Dodge, and Plymouth models, including Chrysler Daytona, LeBaron, New Yorker, Town & Country, and Laser; Dodge 600, Aries, Dakota, Daytona, Lancer, Shadow, Caravan, Charger, and Rampage; and Plymouth Expo, Reliant, Sundance, TC3, Turismo, Turismo 2.2, and Voyager. This GMB 420-8820 tensioner is a fitment-based replacement for vehicles that use the listed timing belt application.

This part cross-references Dayco 84006 and Gates T41000 for the same application.

What This Part Helps Address

• Timing belt slack that can affect engine synchronization
• Belt noise caused by worn tensioner components
• Uneven belt tracking across the pulley surface
• Premature timing belt wear from inconsistent tension
• Service issues on older Chrysler, Dodge, and Plymouth timing systems

Installation Notes and Tips

Verify engine code, belt routing, and existing tensioner design before installation. Inspect the timing belt, idlers, and related wear components at the same time, since a worn belt system can shorten the service life of the new tensioner. Confirm fitment against the vehicle’s year, make, and model listing for the exact application.

Quality Assurance

GMB manufactures this timing belt tensioner to meet or exceed OEM specifications, supporting consistent fit and function for the listed applications. Part number 420-8820 is built for replacement use in select Chrysler, Dodge, and Plymouth timing belt systems.