Standard Ignition VVT559 Engine Variable Valve Timing (VVT) Sprocket - Exhaust

OE-Style VVT Sprocket for Volt and ELR

Standard Ignition VVT559 is a direct-fit engine variable valve timing sprocket for the exhaust side. It is built to restore accurate cam timing, smooth idle quality, and consistent drivability in 2011-2015 Chevrolet Volt and 2014-2015 Cadillac ELR applications.

• Engine variable valve timing sprocket for exhaust-side service
• Precision-machined for accurate valve timing control
• OE-matching tooth profile for quiet operation
• Designed to reduce leakage and lash
• 100% end-of-line tested for OE-level performance
• Direct-fit replacement for Standard Ignition VVT559 applications

Detailed Product Overview

This Standard Ignition VVT559 sprocket is engineered as an OE replacement for variable valve timing service on the exhaust cam. By restoring proper cam phasing, it helps recover horsepower and torque delivery, improve engine efficiency, and reduce emissions. It is a strong match for drivers searching for a 2011-2015 Chevrolet Volt exhaust VVT sprocket or a 2014-2015 Cadillac ELR exhaust variable valve timing sprocket.

This part cross-references 35-1357 and 916-521 for the same application.

What It Helps Correct

• Rough or unstable idle caused by worn VVT components
• Loss of horsepower or torque from incorrect cam timing
• Excessive noise from sprocket tooth wear or lash
• Reduced fuel efficiency tied to timing control issues
• Emissions concerns related to variable valve timing performance

Installation Notes and Tips

Verify exhaust-side fitment before installation and confirm the part number VVT559 against the original component. Clean mating surfaces, inspect related timing components, and follow the vehicle service procedure for cam timing alignment and torque specifications. This part is listed for 2011-2015 Chevrolet Volt, Exhaust, and 2014-2015 Cadillac ELR, Exhaust.

Quality Assurance

Standard Ignition states that this VVT component undergoes 100% end-of-line testing to meet or exceed OE performance expectations. The design also includes OE-style installation bolt provisions where applicable, supporting a straightforward service replacement.