Buy 1999 Chevrolet Express 3500 Timing. Camshaft. Engine. Actuator. Variable Valve Timing Actuator - Exhaust, Valve, LITER - OEM Chevrolet Part # 12621505 (12578516)

Engine Timing Camshaft Sprocket. Engine Variable Valve Timing (VVT) Adjuster. Exhaust. Assembly - CM/SHF POSN. Gear. Position. Sprocket. Variable Valve (VVT) Adjuster.

Engine Timing Camshaft SprocketEngine Variable Valve Timing (VVT) Adjuster

Variable Valve Timing Actuator - Repair or Replace
If your 1999 Chevrolet Express 3500 has a faulty variable valve timing actuator, your check engine light will be accompanied by misfires, hesitation on acceleration, or pinging under load.