Buy Caterpillar 9M4178 - CONNECTING ROD AND PISTON at wholesale prices with easy payment and fast shipping options. Save up to 50% OFF OEM pricing. Compatible Machines:- ENGINE - INDUSTRIAL- ENGINE - MARINE- ENGINE - TRUCK Compatible Models:- D343- D343- 1693 Units Containing The Spare Part :- 9M4178 CONNECTING ROD AND PISTON GROUP--6 Required (1693)- CONNECTING ROD AND PISTON (9M4178 N/S)--6 Required (D343)