Cloyes 9-5115 Engine Timing Chain Tensioner - Upper

Cloyes 9-5115 Timing Chain Tensioner

The Cloyes 9-5115 engine timing chain tensioner is built for specific GM and related applications that use an upper blade-style tensioner. It helps maintain proper timing chain tension so the valvetrain stays quiet and the chain remains properly controlled during operation.

Designed with nylon and steel construction, this tensioner uses an activation pin and a fixed, non-adjustable design. Cloyes engineers each timing component to meet or exceed OEM performance requirements, with CAD-based design and durability testing supporting consistent fit and function.

Key Features

• Part number: 9-5115
• Engine timing chain tensioner for upper timing chain applications
• Blade-style chain type with shoe included
• Nylon/steel construction for controlled chain contact
• Activation pin design; not manually adjustable
• Specific fit application, not universal
• Dimensions: 4 1/4 in. length, 4.59 in. width, 1.15 in. height
• Mounting hole quantity: 2; mount hole inside diameter: 0.33 in./0.38 in.

Detailed Description

Cloyes 9-5115 is an upper engine timing chain tensioner used in a range of Chevrolet, GMC, Pontiac, Buick, Cadillac, Oldsmobile, and Isuzu applications. It is a direct-fit, specific application component for vehicles such as the Chevrolet S10, Chevrolet Cavalier, and GMC Sonoma, where maintaining correct timing chain tension is critical to valvetrain operation. This part cross-references Nissens 95115 for the same application.

Cloyes recommends replacing the chain tensioner, sprockets, and guides together when servicing the timing chain. That approach helps restore proper chain control and reduces the chance of uneven wear in the timing system. The 9-5115 is engineered for quiet operation and consistent performance in upper timing chain service.

What It Helps Address

• Timing chain slack in upper chain applications
• Chain noise caused by worn tensioning components
• Uneven timing chain control from aged guides or tensioners
• Loss of proper chain tension during engine operation
• Timing service on vehicles such as Chevrolet S10, GMC Sonoma, and Chevrolet Cavalier

Installation Notes and Tips

Verify engine-specific application details before installation, especially on vehicles with notes such as LM3 engine coverage. Replace the timing chain tensioner with the related sprockets and guides during timing service when wear is present. Confirm mounting hole size, position, and upper-chain configuration before assembly.

Quality Assurance

Cloyes designs and manufactures timing components using advanced materials and CAD-based engineering. Each part is tested for function and durability, and the brand states that its timing chain tensioners meet or exceed OEM performance requirements.