Cloyes VC134 Engine Variable Valve Timing (VVT) Sprocket

Engine timing sprocket overview

The Cloyes VC134 is an engine variable valve timing sprocket for timing system service and repair. It is used in applications where the sprocket works with the timing chain, tensioners, and guides to maintain proper cam timing.

Compatible With Chevrolet Colorado, GMC Canyon, Hummer H3, Hummer H3T, Chevrolet Trailblazer, GMC Envoy, Saab 9-7x, Isuzu Ascender, Isuzu i-290, and Isuzu i-370 applications listed below.

Key features

• Engine Variable Valve Timing (VVT) sprocket for timing system service.
• Fits as an individual replacement part or as part of a complete timing kit.
• Built for applications that rely on coordinated timing chain and guide operation.
• Cloyes VC134 part number for application matching and catalog lookup.

Detailed description

The Cloyes VC134 is a timing sprocket used in variable valve timing systems. In the engine timing assembly, the sprocket works with the chain, tensioners, and guides to keep valve timing synchronized. This part number, VC134, is listed for multiple GM and Isuzu applications, including Chevrolet Colorado and GMC Canyon models, along with Hummer, Saab, and Isuzu platforms shown in the fitment data.

Cloyes positions this sprocket as a service part that can be purchased separately when the timing system needs targeted repair. The VC134 is a practical choice when replacing a worn or damaged VVT sprocket during engine timing work on Chevrolet Colorado, GMC Canyon, and related applications.

What it is used for

• Replacing a worn variable valve timing sprocket.
• Restoring proper timing chain engagement.
• Addressing timing noise caused by sprocket wear.
• Correcting timing system issues during engine service.
• Supporting valve timing synchronization in listed applications.

Installation notes and tips

Install during timing system service and verify all related components before reassembly. Because this part works within the engine timing assembly, follow the vehicle-specific service procedure and confirm application details in the catalog before ordering. The fitment data lists N/A for position, so use the engine application information to confirm placement.

Quality assurance

Cloyes supplies timing system components, including sprockets, as individual service parts and as part of complete timing kits. The VC134 cross-references 12589782 and 8125897820 for the same application.

Compatible With Chevrolet Colorado and GMC Canyon timing system service, the VC134 is cataloged for application-specific use across the listed GM, Hummer, Saab, and Isuzu vehicles.

Part number VC134 is used for fitment lookup and ordering across the listed applications.