EPS708 vs ERT45R: Two Different Approaches to Testing Common Rail Pumps The Integrated Bench: Bosch EPS708 The Bosch EPS708 is a fully integrated, OEM-grade test bench designed specifically for Common Rail pump calibration . Its architecture includes all critical measurem... Bosch CP3 pumps Common Rail pump testing Cummins XPI Delphi DFP1 Denso HP4 FL400/A diesel test bench upgrade ert45r