Select page: PICT-020.1 20 Engine MM16401, MM16402 ( - 150000) ST515029 Engine Gasket Kit ( - 150000) ST515087 Cylinder Block and Dipstick ( - 150000) ST515088 Piston and Crankshaft ( - 150000) ST515089 Cylinder Head ( - 150000) ST515090 Engine Oil Pump and Filter ( - 150000) ST515091 Flywheel Screen, Fan Housing and Engine Shrouds ( - 150000) ST515139 Home Maintenance Kit ( - 140000) ST940472 Home Maintenance Kit (140001 - 150000) ST948528 Cylinder Head Kit, High Compression ST970435 Engine ST976929 Cylinder Head Kit Other parts group: 20 Engine MM16401, MM16402 ( - 150000) 21 Engine MM16974 (150001 - ) 30 Fuel and Air 40 Electrical 50 Power Train 60 Steering and Brakes 80 Wheels, Frame and Operators Station 85 Mower Deck and Lift Linkage 86 Material Collection System 90 Labels and Optional Equipment