RC48-G20G / RC48-G20G-S(G2000) GEAR BOX/PULLEY/BLADE Parts group RC48-G20G / RC48-G20G-S(G2000) I02010 GEAR BOX/CENTER PULLEY [RC48-G20G(S)] I03010 PULLEY HOLDER/BLADE [RC48-G20G(S)] I04010 SIDE PULLEY/BLADE [RC48-G20G(S)] I05000 TENSION PULLEY sale parts diagram catalog online construction equipment excavator tractor