Product Contents: Gasket inside the cocklever (1), O-ring inside the cocklever, 1 O-ring inside the cocklever, 1 O-ring with negative pressure diaphragm tip (1), O-ring between tank and cock, seal at the base of the fixed bolt (2) Genuine parts for reliability, peace of mind. *This is a brand new O-ring set compatible with genuine gasoline cocks. [Compatible models] GPZ400R (ZX40D - 1D) 985- image Can be installed on the same gas cook (genuine product).