#4: P/N ETT0326: Tillotson T225RS Crankcase Socket Head Screw

#5: P/N ETT0325: Tillotson T225RS Crankcase Top Mounting Plate Spacer

#6: P/N ETT0304: Tillotson T22RS Crankcase Drain Plug Washer

#7: P/N ETT0305: Tillotson T225RS Crankcase Drain Plug Bolt

#8: P/N ETT0303: Tillotson T225RS Crankcase Oil Seal