Parts list: № Number Qty Name Options 1 RE504203 1 Short Block Assembly (ALSO ORDER R502773 AND R121765) (MARKED R115471) (HELICAL GEAR) (PISTON MARKED RE70689 OR R503305) 1 RE504203 1 Short Block Assembly (ALSO ORDER R121765) (MARKED R115471) (SPUR GEAR) (PISTON MARKED RE70689 OR R503305) Next page: ST471179 COMPLETE ENGINE BLOCK ST471180 ENGINE OVERHAUL KIT ST471181 PISTON / CONNECTING RODS / CYLINDER LINER ST471182 CRANKSHAFT ST471183 UNDERSIZE CONNECTING ROD JOURNAL CRANKSHAFT AND BEARING KIT ST471177 CYLINDER BLOCK FITTINGS ST471176 TORQ-GARD SUPREME AND PLUS-50 ENGINE OIL