OTTO Excavator Spare Parts Ex100Wd 4Bd1T Air Pump Connecting Rod 1191730090 119173-0090 1-19173009-0 For Isuzu Engineered as a critical mechanical component for heavy-duty excavator air systems, this OTTO air pump connecting rod is precision-manufactured to deliver seamless integration with OTTO EX100WD excavators powered by the rugged Isuzu 4BD1T turbocharged engine. Featuring triple cross-reference part numbers—1191730090, 119173-0090, and 1-19173009-0—it guarantees OEM-level compatibility, ensuring a direct bolt-on fit that eliminates the need for modifications during installation. This makes it an essential choice for fleet managers, maintenance professionals, and construction companies seeking reliable, time-efficient replacement parts for their Isuzu-powered equipment.