U27-4 OIL PIPING Parts group U27-4 E00000 OIL PIPING (SUCTION) E00200 OIL PIPING (DELIVERY) E00400 OIL PIPING (RETURN) E00600 OIL PIPING (OIL COOLER) E10000 OIL PIPING (CONTROL LH) E10200 OIL PIPING (CONTROL RH) E20000 OIL PIPING (TRAVEL LH) E20200 OIL PIPING (TRAVEL RH) E20400 OIL PIPING (SWIVEL) E30000 OIL PIPING (SWING) E30400 OIL PIPING (BOOM) E40000 OIL PIPING (ARM) E50000 OIL PIPING (BUCKET) E60000 OIL PIPING (BLADE) E70000 OIL PIPING (CLAMP) E80001 OIL PIPING (S/P1) E80002 OIL PIPING (S/P2) E82000 OIL PIPING (THIRD LINE HYDRAULIC RETURN) sale parts diagram catalog online construction equipment excavator tractor