Dorman 917-262 Engine Variable Valve Timing (VVT) Sprocket

Overview of Dorman Engine Variable Valve Timing Sprocket

The Dorman 917-262 Engine Variable Valve Timing (VVT) Sprocket is designed for reliable performance in select Buick, Chevrolet, GMC, Isuzu, and Saab vehicles. Constructed from durable steel with a silver zinc-plated finish, this standard replacement sprocket ensures proper timing and engine efficiency.

• Made from high-strength steel for durability
• Silver zinc-plated surface for corrosion resistance
• Standard replacement grade for dependable performance
• Overall height of 5.9 inches and length of 2.3 inches
• Includes M10 x 1.5 cam shaft bolt for installation

Detailed Product Description

The Dorman 917-262 VVT sprocket is engineered to maintain precise valve timing in engines equipped with variable valve timing systems. Its steel construction provides the necessary strength to withstand engine stresses, while the silver zinc plating offers protection against rust and wear. Measuring 5.9 inches in height and 2.3 inches in length, this sprocket fits specific models such as the Buick Rainier, Chevrolet Trailblazer and Trailblazer EXT, GMC Envoy and Envoy XL, Isuzu Ascender, and Saab 9-7x. The included M10 x 1.5 cam shaft bolt simplifies installation, ensuring a secure fit.

Compatible Vehicles and Applications

This VVT sprocket is compatible with the following makes and models:

• Buick Rainier
• Chevrolet Trailblazer and Trailblazer EXT
• GMC Envoy and Envoy XL
• Isuzu Ascender
• Saab 9-7x

Common Issues Addressed by the VVT Sprocket

• Irregular engine timing causing rough idling or poor acceleration
• Check engine light triggered by variable valve timing faults
• Reduced fuel efficiency due to improper valve operation
• Engine noise or rattling related to worn timing components
• Failed emissions tests linked to timing inconsistencies

Installation Notes and Tips

• Ensure engine is cool before beginning installation
• Use the included M10 x 1.5 cam shaft bolt to secure the sprocket
• Follow manufacturer torque specifications to avoid damage
• Inspect related timing components for wear during replacement
• Verify proper alignment of the sprocket with timing marks

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 917-262 VVT sprocket undergoes rigorous quality control to ensure durability and reliable operation. This part is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use.