Cloyes 9-5977 Engine Timing Chain Tensioner

Cloyes Timing Chain Tensioner 9-5977

Cloyes 9-5977 is an engine timing chain tensioner built for applications that rely on a spring-and-guide design. It helps maintain proper chain tension for consistent valve timing in compatible Cadillac, Chevrolet, and GMC vehicles, including Silverado, Sierra, Tahoe, Yukon, Camaro, and Corvette applications.

Key Features

• Spring and guide tensioner design for timing chain control
• Metal housing with metal and nylon construction
• Black finish with included mounting bracket and shoe
• Activation pin style for service installation
• Two mounting holes with 0.383 in. diameter
• Non-adjustable design
• Cross-references part numbers 95977 and 12630107

Product Details

This Cloyes timing chain tensioner is part of the Timing Chain Tensioner line, a product group focused on maintaining timing system stability across a wide range of engine applications. Cloyes has supplied timing system components since 1921, and the 9-5977 reflects that experience with a metal-bodied, spring-and-guide configuration built for precise chain control. It is used in timing systems where proper chain tension is critical to keeping camshaft and crankshaft timing aligned in Cadillac CT5, Escalade, CTS, Chevrolet Silverado 1500, Tahoe, Camaro, Corvette, and GMC Sierra and Yukon applications. For timing system integrity, Cloyes recommends replacing the chain, tensioners, guides, and sprockets together during service.

Vehicle Fitment

• Fits 2022-2023 Cadillac CT5, Timing Chain Tensioner
• Fits 2015-2023 Cadillac Escalade, Timing Chain Tensioner
• Fits 2015-2022 Cadillac Escalade ESV, Timing Chain Tensioner
• Fits 2016-2019 Cadillac CTS, Timing Chain Tensioner
• Fits 2014-2023 Chevrolet Silverado 1500, Timing Chain Tensioner
• Fits 2022 Chevrolet Silverado 1500 LTD, Timing Chain Tensioner
• Fits 2019 Chevrolet Silverado 1500 LD, Timing Chain Tensioner
• Fits 2020-2023 Chevrolet Silverado 2500 HD, Timing Chain Tensioner
• Fits 2020-2023 Chevrolet Silverado 3500 HD, Timing Chain Tensioner
• Fits 2015-2023 Chevrolet Tahoe, Timing Chain Tensioner
• Fits 2016-2022 Chevrolet Camaro, Timing Chain Tensioner
• Fits 2014-2022 Chevrolet Corvette, Timing Chain Tensioner
• Fits 2021-2022 Chevrolet Express 2500, Timing Chain Tensioner
• Fits 2021-2022 Chevrolet Express 3500, Timing Chain Tensioner
• Fits 2014-2018 Chevrolet Cheyenne, Timing Chain Tensioner
• Fits 2016-2018 Chevrolet Silverado 2500, Timing Chain Tensioner
• Fits 2015-2023 GMC Yukon, Timing Chain Tensioner
• Fits 2015-2023 GMC Yukon XL, Timing Chain Tensioner
• Fits 2014-2022 GMC Sierra 1500, Timing Chain Tensioner
• Fits 2022 GMC Sierra 1500 Limited, Timing Chain Tensioner
• Fits 2019 GMC Sierra 1500 Limited, Timing Chain Tensioner
• Fits 2020-2023 GMC Sierra 2500 HD, Timing Chain Tensioner
• Fits 2020-2023 GMC Sierra 3500 HD, Timing Chain Tensioner
• Fits 2021-2022 GMC Savana 2500, Timing Chain Tensioner
• Fits 2021-2022 GMC Savana 3500, Timing Chain Tensioner
• Fits 2017 GMC Sierra, Timing Chain Tensioner

Common Timing System Issues

• Excess timing chain slack
• Chain noise from a worn or weak tensioner
• Inconsistent camshaft timing control
• Timing system wear during high-mileage service
• Need for a direct replacement timing chain tensioner on supported Cadillac, Chevrolet, and GMC engines

Installation Notes

Install the tensioner according to the vehicle service procedure and verify correct chain alignment before closing the timing cover. Because this part uses an activation pin and includes a mounting bracket and shoe, confirm all mating timing components are inspected for wear before assembly. Cloyes recommends replacing the chain, guides, and sprockets at the same time to help restore full timing system integrity.

Quality Assurance

Cloyes has specialized in automotive timing systems since 1921 and backs its products with technical support and an industry-leading warranty. Part number 9-5977 is built for timing system service on supported Cadillac, Chevrolet, and GMC applications.