GM Genuine Parts 12679099 Intake Variable Valve Timing (VVT) Solenoid with Seal, Retainer, and Bolt

GM Genuine Parts VVT solenoids control the oil feed to cam phasers, enabling timing adjustments that respond to engine speed and load. This helps maintain smooth operation and supports efficient performance. These OE-style components are intended for GM vehicles and are backed by General Motors, with some parts historically appearing as ACDelco GM Original Equipment (OE).

Engineered for durable OE performance

• Coated to resist premature corrosion and extend service life
• Calibrated to match OEM specifications for the expected GM driving experience
• Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
• GM Genuine Parts are designed, engineered, and tested to high standards and backed by General Motors
• GM engineers design and validate OE parts specifically for Chevrolet, Buick, GMC, or Cadillac vehicles
• GM regularly updates production and service part designs to integrate new materials and technologies

What you may notice with proper VVT timing control

• Consistency in cam timing adjustments aligned with engine speed and load
• Smoother idle and responsive accelerative feel as the timing system operates as intended
• Reliable valve timing control that supports overall engine efficiency and drive quality
• Durable construction with corrosion-resistant coating for longer service life

For installation and maintenance, verify fitment for 12679099, replace the included seal and bolt to maintain sealing integrity, and follow GM service guidelines for OE parts. If installing yourself, keep the electrical connector clean and ensure the mounting surface is free of debris. In many GM models, replacing the VVT solenoid is a straightforward task that can help restore the intended timing behavior when the system is functioning as designed.

Why GM Genuine Parts

GM Genuine Parts are specifically designed, engineered, and tested to meet rigorous standards, and are backed by General Motors. They reflect OEM calibration and are intended to restore the reliability you expect from your GM vehicle. Continuous improvements in materials and technologies help keep OE parts aligned with modern engineering needs.