A-B1809200-AI HEAD-CYLINDEROne New Aftermarket Replacement Cylinder Head Fits Briggs & Fits Stratton Vanguard V Twin Engines This aftermarket replacement cylinder head is designed to Fits Briggs & Fits Stratton Vanguard V twin engines. The cylinder head seals the top of the engine block, houses the intake and exhaust valves, and contains the combustion chamber where fuel and air are ignited to generate power. A cracked, warped, or damaged cylinder head can cause coolant leaks,