Parts list: № Number Qty Name Options 1 RE51943 AR SHORT BLOCK ASSEMBLY (MARKED R113641 OR R116193) (SUB FOR RE25578) (MARKED R80726) 2 RE51929 AR SHORT BLOCK ASSEMBLY (MARKED R113641 OR R116193) (SUB FOR RE25579) (MARKED R80726) Next page: 21-20 OIL FILLER [01C24] 21-21 MAGNETIC PICK-UP [01C25] 21-22 TIMING GEAR COVER [01D01] 21-23 IDLE GEARS [01D02] 21-24 IDLE GEARS [01D03] 21-19 BALANCER SHAFT, KIT [01C23] 21-18 BALANCER SHAFT [01C22] 21-17 BALANCER SHAFT, KIT [01C21] 21-16 BALANCER SHAFT [01C20] 21-15 CAMSHAFT, KIT [01C19]