The CTA Tools Cummins Front & Rear Crankshaft Seal Remover & Installer Master Kit, No. 5085, is a comprehensive kit for installing and removing the front and rear crankshaft seals on Cummins engines, including ISB, ISC, ISL, QSB, and B and C Series models from 1989 to current. It's compatible with factory OE seals and wear sleeves. The kit includes a Cummins USB front crank seal removal and installation tool, a Cummins crankshaft seal installer, a Cummins wear sleeve install tool, a rear crankshaft seal removal and installation tool, and a Cummins B and C Series rear crank seal/wear sleeve installer.