Cummins 4309251 Turbocharger Repair Kit

The Cummins 4309251 turbocharger repair kit is designed for the overhaul of Holset HE400VG and HE451VE variable geometry turbochargers. This kit contains critical rotating assembly components including journal bearings, thrust bearings, piston rings, and sealing rings required to restore turbocharger performance to OEM specifications. Compatible with Cummins ISC, ISL, and ISM engine platforms utilizing the HE400VG and HE451VE turbocharger models. The kit addresses common wear points such as rotor shaft radial play and axial clearance. Precision manufactured to meet Cummins material hardness and dimensional tolerances for high-temperature exhaust environments. Cross-references include ReCon part numbers 4309251RX and 4309251NX. Professional installation with calibrated balancing equipment is recommended for rotating assembly reassembly.