Buy Caterpillar 5I8421 - SPACER at wholesale prices with easy payment and fast shipping options. Save up to 50% OFF OEM pricing. Compatible Machines:- ENGINE - MACHINE- EXCAVATOR- OEM SOLUTIONS Compatible Models:- 3066- 3116- 3176C- 320B- 320B L- 320B N- 320B S- 345B- 345B L- OEMS Units Containing The Spare Part :- 137-3717 MOTOR GP-SWING (3176C)- 126-2028 MOTOR GP-SWING (3066)- 123-1998 MOTOR GP-SWING (3176C)- 116-3550 MOTOR GP-SWING (3116)- 0874715 SWING MOTOR GP-PISTON (SLIPPER)-PART 1 OF 2 (3066)- 0874824 SWING MOTOR GP-PISTON (SLIPPER)-PART 1 OF 2 (3066)- 0874824 MOTOR GP-PISTON-SLIPPER-PART 1 OF 2 (3066)- 1262028 MOTOR GP-SWING-PART 1 OF 2 (3066)- 1765107 MOTOR GP-SWING-PART 1 OF 2 (3066)- 1262028 MOTOR GP-SWING (1/2) (3066)- 1373717 MOTOR GP-SWING-PART 1 OF 2 (3176C)