Engine Variable Valve Timing (VVT) Solenoid-Timing Solenoid Dorman 918-078. See our other listings. CST, MON to FRI. Engine Variable Timing Solenoid. This replacement engine variable valve timing (VVT) solenoid is precision-engineered to match the fit and function of the original VVT solenoid. Made of quality materials for a long service life, it has been tested for proper performance. 1 Engine… Read more →