Motorcycle Cylinder Head Base Gasket Kit For Kawasaki Ninja 400 EX400 2018-2023 Z400 ER400 2019-2023 Fit For Kawasaki Ninja 400 EX400 2018-2023 Z400 ER400 2019-2023 motorcycles; cylinder head engine base mounting structure;suitable for engine end overhaul leak repair Direct complete replacement set;contains matched cylinder head gasket base gaskets;no extra or custom during installation Multi-layer composite sealing material with temperature resistance;effectively blocks coolant leakage under rpm operation die-cut to dimensional standards; fits engine mating surfaces to eliminate uneven gaps blow-by issues compression structure maintains stable sealing for long mileage;reduces frequent gasket replacement frequency