Gates VCP834 Engine Variable Valve Timing (VVT) Sprocket

OE-Style VVT Sprocket for Audi and Volkswagen

Gates VCP834 is an engine variable valve timing sprocket built to OE specifications for fit, form, and performance. It is designed for Audi A3, A3 Quattro, A4, A4 Quattro, TT, and Volkswagen Eos, GTI, Jetta, Jetta City, and Passat applications with timing chain drive systems.

Constructed with a steel housing and OE Exact comparison rating, this Gates variable valve timing sprocket is engineered to restore proper cam timing response, engine efficiency, and emissions control on supported 2006-2009 Audi and Volkswagen models.

Key Features

• Gates Engine Variable Valve Timing Sprocket, part number VCP834
• OE Exact comparison rating for OE-style fit and function
• Steel housing for durability and service life
• Timing chain drive design with 19 teeth
• Outside diameter: 3.31 in; overall height: 1.506 in
• Single-row chain configuration
• Mounting hardware not included

Product Details

The Gates VCP834 cam phaser-style VVT sprocket is engineered for direct replacement in timing chain applications where precise valve timing is critical. Gates designs this Engine Variable Valve Timing Sprocket to OE specifications and tests it to help restore engine performance, fuel economy, power delivery, and emissions control. If you are servicing a 2006-2009 Audi A4 or A4 Quattro, or a 2006-2008 Volkswagen GTI or Jetta, this part number VCP834 provides the correct OE-style solution for the listed applications.

This part cross-references Dorman OE Solutions 916-590 for the same application.

Common Problems This Part Addresses

• Check engine light related to cam timing or VVT performance
• Rough idle or inconsistent engine operation from worn cam phaser components
• Reduced fuel economy caused by incorrect valve timing
• Loss of power or sluggish throttle response
• Higher emissions from timing control issues

Installation Notes and Tips

• Fits 2006-2009 Audi A4, N/A
• Fits 2006-2009 Audi A4 Quattro, N/A
• Fits 2006-2008 Audi A3, N/A
• Fits 2007-2008 Audi TT, N/A
• Fits 2007-2008 Volkswagen Eos, N/A
• Fits 2006-2008 Volkswagen GTI, N/A
• Fits 2006-2008 Volkswagen Jetta, N/A
• Fits 2007-2008 Volkswagen Jetta City, N/A
• Fits 2006-2008 Volkswagen Passat, N/A
• Fits 2006-2007 Audi A3 Quattro, N/A

Verify timing marks, chain condition, and related valve train components before installation. Because these applications are listed as interference engines, correct cam timing and final inspection are essential after service. Use the OE comparison and tooth specifications to confirm application match before assembly.

Quality Assurance

Gates builds this VVT sprocket from high-quality materials and validates it against OE performance targets for fit, form, and function. The design is intended to deliver dependable service in timing chain-driven Audi and Volkswagen engines.