Parts that do not meet Cummins factory standards are replaced with new genuine Cummins parts. Individual components are tested prior to assembly. Following dis-assembly and cleaning, critical-wear parts — including seals, bearings and thrust plates — are replaced.
Truck and bus turbochargers are tested for tolerance and calibration to ensure an exact match to the intake needs of every engine. All critical-wear parts are replaced, and patented unitized carbon seals are used to resist silicate deposits and leaks.