SPECIFICATIONS Caterpillar Roller Replacement suitable for Caterpillar D6M (1210827) 121-0827 Thread diameter (in): 7.76 Flange diameter (in): 8.9 Flange type: Two flanges COMPATIBLE MODELS FOR PART NUMBER 121-0827 TRACKED BULLDOZER D5H D5H XL D6M D6N TRACK LOADER 953C SKIDING CATERPILLAR TRACTOR D5HTSK II EXCAVATOR OEMs Weight(lbs): 103 Length(cm): 37 Width(cm): 22 Depth(cm): 21 1210827