Cloyes 9-5157 Engine Timing Chain Tensioner - Upper

Cloyes 9-5157 Timing Chain Tensioner

The Cloyes 9-5157 engine timing chain tensioner is built for specific Ford and Mazda applications that require precise chain control in the upper timing system. It uses a hydraulic/spring design with an included shoe, spring, and gasket or seal to help maintain proper chain tension and stable valve timing.

Key Features

• Specific-fit engine timing chain tensioner for select Ford and Mazda vehicles
• Hydraulic/spring chain type with activation pin design
• Nylon/aluminum construction for durability and consistent operation
• Shoe, spring, and gasket or seal included
• Measures 3.75 in. long, 2.14 in. wide, and 1.06 in. high
• Brown/gray finish with two mounting holes
• Part number 9-5157

Detailed Description

Cloyes 9-5157 is an upper timing chain tensioner engineered for specific applications including the 1986-1994 Ford Ranger, 1990-1994 Ford Aerostar, 1991-1994 Ford Explorer, 1986-1990 Ford Bronco II, 1991-1994 Mazda Navajo, and 1994 Mazda B4000. This timing chain tensioner is designed to maintain proper chain tension using a hydraulic/spring setup, helping the timing system stay aligned under normal engine operation. Cloyes manufactures this part with CAD-based design and advanced materials, then tests it for function and durability to meet or exceed OEM performance requirements. If you are replacing timing components on a Ford Ranger or Mazda Navajo, the 9-5157 is a direct-fit service part for the upper chain position. This part cross-references Dayco 95157 for the same application.

What It Helps Address

• Timing chain slack in the upper timing system
• Chain noise caused by worn tension control
• Valve timing instability from a weakened tensioner
• Premature wear on timing chain guides and related components
• Service issues on Ford Ranger and Mazda Navajo timing systems

Installation Notes and Tips

Use this tensioner only on the specific applications listed in the fitment data. Cloyes recommends replacing the chain tensioner, sprocket, and guide components together when servicing the timing chain, since these parts work together to keep the chain properly tensioned. Verify upper-position fitment before installation and follow the vehicle service procedure for timing system alignment and activation pin handling.

Quality Assurance

Cloyes designs and manufactures timing components with advanced materials and extensive function and durability testing. The 9-5157 timing chain tensioner is built to meet or exceed OEM performance requirements for the listed Ford and Mazda applications.