The Stihl motor casing (code 1146-020-3006) is an original spare part for Stihl MS 150 C-E, MS 150 TC, MS 151 C-E, MS 151 TC chainsaws. Plastic element that protects and contains the engine. Includes Collar Screw, Succorule, Hose, Valve, Oil Hose, Oil Filter, Oil Tank Cap, MN Mixture Tank Cap