2009 UD 1800HD Timing Gears, Chains & Covers

UD 1800HD 2009, Variable Valve Timing Solenoid by gpd®. The variable valve timing (VVT) solenoid, also known was VVT oil control valve, is a vital part of the engine's VVT system. The VVT solenoid controls the flow of oil to the VVT...