Buy Caterpillar 6S6456 - RETAINER 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 :- 6S3314 REAR FRAME GROUP (3204)- 5G1390 REAR FRAME GROUP-PART 2 OF 2 (3204)- 5G1390 REAR FRAME GROUP-PART 2 OF 2 (3204)