Buy Caterpillar 5I9580 - O-RING 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 :- SWING MOTOR-Part 2 of 2 (3116)- SWING MOTOR (For automatic swing brake)-Part 3 of 3 (3116)- SWING MOTOR - Part 2 of 2 (3306)- SWING MOTOR (For automatic swing brake) - Part 3 of 3 (3306)