Buy Caterpillar 8B9421 - RETAINER-PIN at wholesale prices with easy payment and fast shipping options. Save up to 50% OFF OEM pricing. Compatible Machines:Compatible Models:Units Containing The Spare Part :- 2H7114 OIL PUMP ASSEMBLY (D337)- CRANKSHAFT, CAMSHAFT, CONNECTING ROD AND PISTON (D337)- CONNECTING ROD AND PISTON (2 Groups Req'd.) (D397D)- CAMSHAFT, CRANKSHAFT, CONNECTING ROD AND PISTON (D326F)- CONNECTING ROD AND PISTON--2 Required (D326F)- CAMSHAFT, CRANKSHAFT, CONNECTING ROD AND PISTON (D326F)- 4H8614 OIL PUMP ASSEMBLY (D342)- 4H8758 OIL PUMP ASSEMBLY--Type 1 (D342)- 4H8758 OIL PUMP ASSEMBLY--Type 2 (D342)- CRANKSHAFT, CAMSHAFT, CONNECTING ROD AND PISTON (D342)- 2H7105 OIL PUMP ASSEMBLY (977A)- 6N2603 OIL PUMP GROUP (D342)