Standard Ignition VVT516 Engine Variable Valve Timing (VVT) Sprocket - Right Bank

OE-Style VVT Sprocket Replacement

Standard Ignition VVT516 is a direct-fit engine variable valve timing sprocket for the right bank. It is built to restore accurate cam timing, smooth rough idle, and recover horsepower and torque delivery on the affected applications.

Compatible with 2005-2007 Saab 9-7x, right bank, and other listed GM-platform vehicles, this Standard Ignition VVT516 replacement is engineered for quiet operation and consistent variable valve timing control.

Key Features

• Engine variable valve timing sprocket for right-bank applications
• Precision-machined for accurate cam phasing and timing control
• OE-matching tooth profile for quiet operation
• Designed to reduce leakage and lash for stable performance
• 100% end-of-line tested for OE-level function
• Direct-fit replacement for service work on the listed vehicles

Detailed Description

The Standard Ignition VVT516 is an OE-style variable valve timing sprocket designed to restore proper engine timing behavior on the right bank. By helping the cam timing system respond correctly, it can improve drivability, reduce emissions, and recover the engine’s intended power curve. This part is a practical replacement for service on the Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Isuzu Ascender, Saab 9-7x, Trailblazer EXT, and Envoy XL applications listed below.

This part cross-references Dorman OE Solutions 917-262 for the same application.

What It Helps Fix

• Rough or unstable idle related to variable valve timing control
• Timing response issues caused by worn sprocket components
• Noise from excessive lash or leakage in the VVT assembly
• Reduced engine performance, including loss of horsepower or torque
• Emissions concerns tied to inaccurate cam timing

Fitment and Installation Notes

• Fits 2006-2007 Buick Rainier, right bank
• Fits 2006-2007 Chevrolet Trailblazer, right bank
• Fits 2006-2007 GMC Envoy, right bank
• Fits 2006-2007 Isuzu Ascender, right bank
• Fits 2005-2007 Saab 9-7x, right bank
• Fits 2006 Chevrolet Trailblazer EXT, right bank
• Fits 2006 GMC Envoy XL, right bank

Verify engine configuration and bank location before installation. Proper timing alignment is critical when replacing a variable valve timing sprocket, so follow the service procedure for the specific vehicle and engine. Standard Ignition VVT516 is a direct-fit replacement intended for the listed right-bank applications.

Quality Assurance

Standard Ignition states that this VVT sprocket undergoes 100% end-of-line testing to help meet or exceed OE performance expectations. The design is based on OE replacement requirements for accurate timing, quiet operation, and consistent drivability.