Cummins 3932159 Fuel Injector Supply Line

Technical specification for Cummins part number 3932159 high-pressure fuel injector supply line. Manufactured from high-strength steel tubing with precision flared ends and M14 x 1.5 flare nuts to withstand injection pressures up to 120 MPa. Designed for direct fitment on Cummins 6BT 5.9L and ISB/QSB 6.7L diesel engines utilizing P7100 or early common rail fuel systems. Each engine requires six cylinder-specific lines; this part number corresponds to a specific cylinder position. OEM cross-references include superseded numbers 3973354 and 4934465. Compatible with Dongfeng Tianlong heavy-duty trucks and various construction machinery equipped with Cummins B-series engines.