Ensure the sealing and reliability of your engine with our specific 4-stroke Sherco top gasket pack. Designed for 250cc, 300cc, 450cc and 500cc models, this complete high-quality kit includes all the gaskets needed for cylinder head reassembly: head gasket, stud gaskets and sometimes the exhaust gasket. A perfect seal is crucial to maintain optimum compression and engine power, and prevent the ingress of impurities. Essential after dismantling for maintenance, overhaul or machining, this pack guarantees that you can reassemble your machine with complete confidence, and maintain its performance over time.