Dorman 917-274 Engine Variable Valve Timing (VVT) Sprocket - Exhaust

Overview of Dorman Engine Variable Valve Timing Sprocket

The Dorman 917-274 Engine Variable Valve Timing (VVT) Sprocket is designed for reliable performance in select GM vehicles. Constructed from durable steel with a silver zinc-plated finish, this standard replacement sprocket ensures consistent operation of the variable valve timing system.

• Made from high-strength steel for durability
• Silver zinc-plated finish for corrosion resistance
• Standard replacement grade for dependable fit and function
• Overall dimensions: 3.75 inches height and length
• Includes M10 x 1.5 camshaft bolt for installation

Detailed Product Description

This Dorman Engine Variable Valve Timing Sprocket (part number 917-274) is engineered to meet OEM specifications for a range of GM vehicles including Buick, Cadillac, Chevrolet, GMC, Pontiac, and Saturn models. The sprocket’s steel construction provides the necessary strength to withstand engine timing stresses, while the silver zinc plating offers protection against rust and wear. Measuring 3.75 inches in both height and length, it is designed to fit precisely within the valve train assembly. The package includes an M10 x 1.5 camshaft bolt to facilitate secure installation.

Compatible Vehicles and Applications

This VVT sprocket is compatible with various GM models such as the Buick LaCrosse and Enclave, Cadillac ATS and SRX, Chevrolet Camaro and Malibu, GMC Canyon and Terrain, Pontiac G6 and G8, and Saturn Aura and Vue. It is suitable for vehicles equipped with variable valve timing systems requiring a reliable sprocket replacement.

Common Issues Addressed by This VVT Sprocket

• Irregular engine timing causing rough idling or poor performance
• Excessive wear or damage to the original VVT sprocket
• Engine check light triggered by timing component faults
• Noise or rattling from the valve train area
• Reduced fuel efficiency due to timing inconsistencies

Installation Notes and Tips

When installing the Dorman 917-274 VVT sprocket, ensure the engine is cool and the battery is disconnected. Use the included M10 x 1.5 camshaft bolt to secure the sprocket, following manufacturer torque specifications. Proper alignment with the timing chain and other valve train components is critical to maintain engine timing accuracy. It is recommended to inspect related components such as the timing chain and tensioner during installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and fitment. This VVT sprocket undergoes quality control inspections to ensure durability and function. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship.