Cummins 3973228 Fuel Pump Repair Kit

This fuel pump repair kit is engineered for Cummins 8.3L and 8.9L engine series including QSC, ISC, ISL, QSL, and 6CT models. The kit provides all necessary seals, gaskets, O-rings, and internal hardware required to reseal or rebuild the fuel injection pump to OEM specifications. It addresses common wear points in CAPS, PT, and HPI fuel systems to restore fuel delivery pressure and prevent leakage. Designed for heavy-duty construction machinery, commercial truck, and industrial power generation applications where Cummins C-series engines are deployed. Manufactured to meet Cummins material and dimensional standards for reliable service life.