GMB 435-8440 Engine Timing Belt Tensioner

Engine Timing Belt Tensioner for Honda and Acura

GMB 435-8440 is an engine timing belt tensioner built to meet or exceed OEM specifications. It is engineered for precise belt control in timing belt service, helping maintain proper tension across the engine’s valve train system.

Compatible with select Honda Accord, Prelude, Odyssey, Acura CL, and Isuzu Oasis applications, this timing belt tensioner supports accurate belt tracking for 1990-2002 model-year coverage. The GMB 435-8440 is a direct-fit service part for vehicles that require a reliable OE-style replacement.

• Engine timing belt tensioner for valve train service
• Built to meet or exceed OEM specifications
• Metal pulley construction for durability
• Serpentine and V-belt pulley/belt type
• Single-groove pulley design
• Cross-references Gates T41014 for the same application

Detailed Product Overview

This GMB timing belt tensioner is designed around OE replacement requirements for Honda and Acura engines. The metal pulley and single-groove layout support stable belt operation, while the OE-spec construction helps maintain the correct tension needed for timing belt performance. Part number 435-8440 is also referenced in aftermarket catalogs for the same application, including ACI 85203.

Fits 1990-2002 Honda Accord, N/A. Fits 1997-1999 Acura CL, N/A. Fits 1996-1999 Isuzu Oasis, N/A. Fits 1995-1998 Honda Odyssey, N/A. Fits 1992-1996 Honda Prelude, N/A.

Common Issues This Part Addresses

• Timing belt slack that can affect engine synchronization
• Belt noise caused by worn tensioner components
• Uneven belt tracking from a deteriorated pulley assembly
• Service replacement needs during timing belt maintenance
• Wear-related tension loss in high-mileage Honda and Acura engines

Installation Notes and Tips

Replace the tensioner during timing belt service and verify belt routing before starting the engine. Inspect the belt, idlers, and related wear components at the same time to confirm the system is ready for reassembly. Confirm vehicle year, engine configuration, and OE part number before installation.

Quality Assurance

GMB manufactures this part to meet or exceed OEM specifications, supporting OE-level fit and function for the listed applications. Part number 435-8440 is built for direct replacement use in timing belt service on select Honda, Acura, and Isuzu vehicles.