E320/E200b Excavator Carrier Roller Top Roller Cat 320 Upper Roller - China Roller, Undercarriage Parts | Made-in-China.com
320 Excavator Undercarriage Parts Top Roller - China Top Roller, Carrier Roller | Made-in-China.com
Amazon.com: One New Top Roller Group Fits CAT, Fits Caterpillar 320, 320 L, 320B, 320B L, 320B N, 320B S Models Interchangeable with 6Y5323, 6Y5323-A, UNI70-0022 : Patio, Lawn & Garden