Dorman 420-100 Engine Timing Belt Tensioner

Engine Timing Belt Tensioner for Honda and Acura

This Dorman engine timing belt tensioner is a standard replacement for select Honda and Acura applications. Built to match the original fit and function, it uses quality materials and an automatic hydraulic design for reliable belt tension control.

• Direct replacement engine timing belt tensioner for specified applications
• Automatic hydraulic tensioner style for consistent belt loading
• Standard replacement grade for OE-style fit and function
• Made from quality materials for durability in engine service
• Designed for Honda Accord, Acura CL, Acura TL, and Honda Odyssey applications

Product Details

Dorman 420-100 is an engine timing belt tensioner engineered to match the original component on select 1997-2002 Honda and Acura vehicles. It is a non-adjustable, hydraulic automatic tensioner with no bracket and no pulley included, making it a focused replacement for the timing belt system. This part cross-references Dayco 85039 and Gates T43198 for the same application. If you are servicing a 1998-2002 Honda Accord, 1997-1999 Acura CL, 1999 Acura TL, or 1999 Honda Odyssey, Dorman 420-100 provides the correct replacement format for the timing belt drive.

Common Problems It Can Address

• Timing belt slack caused by a worn hydraulic tensioner
• Noise from a tensioner that no longer maintains proper belt load
• Irregular belt tension during engine operation
• Service issues on Honda Accord, Acura CL, Acura TL, and Honda Odyssey timing belt repairs
• Replacement needs when the original tensioner has lost damping performance

Installation Notes and Tips

Install during timing belt service and verify the belt path, alignment, and tensioner operation before closing the engine. Because this is an automatic hydraulic tensioner, follow the vehicle service procedure for setting and releasing the tensioner correctly. Confirm vehicle fitment by year and model before installation. Fits 1998-2002 Honda Accord, 1997-1999 Acura CL, 1999 Acura TL, and 1999 Honda Odyssey.

Quality Assurance

Dorman designs this timing belt tensioner to match the fit and function of the original part on listed applications. The component is built from quality materials and engineered for dependable performance in standard replacement service.