A-B1592175-AI HEAD-CYLINDEROne New Aftermarket Replacement Cylinder Head Fits Briggs and Stratton Small Engines This aftermarket replacement cylinder head Fits Briggs and Stratton (B&S) engines in the 100000 19Z999 series, including the 14B and 14D engine families commonly used in walk behind lawn mowers and other outdoor power equipment. The cylinder head seals the combustion chamber, houses the valves, and manages coolant and exhaust passages to keep the engine running at