Mercedes Cylinder Head & Engine Block Assembly Cylinder Bolt | Part #A0009902907
The Mercedes Cylinder Head & Engine Block Assembly Cylinder Bolt (Part #A0009902907) is a high-yield stretch bolt engineered to clamp the engine cylinder head tightly to the engine block under massive combustion pressures. Designed specifically for Mercedes-Benz powerplants, this fastener ensures a reliable seal for head gaskets. It features premium alloy steel measuring roughly M11 or M12 thread width with an extended length (approx. 120mm to 150mm), a specialized multi-point internal drive head, and high tensile strength designed for torque-to-yield single-use installation.