New old stock ( been in storage for at least 24 years) Piston Rings and Conrod to suit Kohler K161 7 horsepower engines. Piston and rings will also suit K181 8hp models however con rod will not fit. Due to storage, piston and rings have some minor corrosion, rings on top and bottom surface, piston has some discolouration but is not pitted. Genuine OE parts, part numbers 4107405 (piston) 232575 (rings) and B-230039 (rod). All are standard sizes. Piston includes gudgeon pin and circlips. Also includes a genuine Kohler gasket set that matches the above parts, (part no 41 004 01). As it has been opened, I cannot guarantee it is totally complete, but it does have head, sump and a selection of side cover gaskets.