Specifics:Material: Aluminum-Bore/Piston Outer Diameter:STD(66mm)-Piston Pin Outer Diameter:16mm-Rings Thickness:1*1mm-Cylinder Height at both ends:90mm-Cylinder Displacement:175ccFitment:DT175E 1978 175 DT175 Dual PurposeDT175F 1979 175 DT175 Dual PurposeDT175G 1980 175 DT175 Dual PurposeDT175H 1981 175 DT175 Dual PurposeMX175 DT180Part numbers:Cylinder: 2A7-11311-00Base Gasket: 18G-11351-00Head Gasket: 1W2-11181-00Piston: 3J1-11631-00-96Piston Rings: 2A7-11610-00Package includes:Cylinder Kit Includ:( Cylinder + Piston + Rings + Pin +Clips+ Gaskets )Piston Kit Includ:( Piston + Rings + Pin + Clips)Features:Manufactured using the latest computerized technologies derived from GP and F1.Forged pistons are more temperature resistant and longer lasting than cast pistons.These pistons additionally have a piston skirt coating.The piston sets are supplied complete with rings, bolts and clips.Airtight function,prevent gas leakage from the top of the piston.This piston ring also achieve the heat dissipation effect.Prevent excessive oil from entering the combustion chamber and to fully lubricate the cylinder wall.Maintain the direction of movement of the piston,so please select the best piston ring for the engine.This kit includes a piston, rings, wrist pin, and circlips.Professional install will be highly recommanded. No installation instruction included.