Select page: PICT-020.1 20 ENGINE (25 HP) AM128312 ST501219 Fan Cover ST501221 Oil Cooler ST501223 Cylinder Block/Crankshaft/Piston/Camshaft ( - 690503) ST501224 Cylinder Block/Crankshaft/Piston/Camshaft (690504 - ) ST501225 Cylinder Head ST501391 Oil Pump ST501393 Oil Drain Hose ST501397 Engine Gasket Kit Other parts group: 20 ENGINE (25 HP) AM128312 30 Fuel And Air 40 Electrical 50 Power Train 60 Steering, Brakes And Control Linkages 70 Hydraulics 80 Wheels, Non-Powered Axles, Sheet metal 85 Mower Deck And Lift Linkage