K301, 12 hp before serial number 1730100003. Will not fit Kohler "D" type Mahle piston. (Chrome rings). Cylinder diameter 3.375"
This part fits:
|OEM Replacement This part is aftermarket equipment designed to replace the original manufacturer's part numbers specified here. It is manufactured using high-quality materials, to the same specifications as the original part.||Kohler 235889, OEM 36-032|