OTTO Excavator Spare Parts Ex300 6Sd1T Air Pump Oil Seal 1096251870 109625-1870 1-09625187-0 For Isuzu Engineered as a critical sealing solution for heavy-duty excavator air systems, this OTTO air pump oil seal is precision-manufactured to seamlessly integrate with OTTO EX300 excavators powered by the robust Isuzu 6SD1T turbocharged engine. Featuring triple cross-reference part numbers—1096251870, 109625-1870, and 1-09625187-0—it guarantees OEM-level compatibility, ensuring a direct, drop-in fit that eliminates installation delays and modifications for maintenance teams, fleet operators, and construction professionals.