The Cummins R&I tool CM3880 is a rear crankshaft seal R&I tool that is designed for use on Cummins 3,5L, 3,9L, 5,9L and 6,7L engines. The CM3880 features a replaceable crankshaft seal tool head that is made from high-quality steel and is precision machined to exacting tolerances. The tool head is also equipped with a hardened steel scraper blade that is designed to remove stubborn sealant residues from the crankshaft seal surface. The Cummins R&I tool CM3880 is a rear crankshaft seal R&I tool that is designed for use on Cummins 3,5L, 3,9L, 5,9L and 6,7L engines. The CM3880 features a replaceable crankshaft seal tool head that is made from high-quality steel and is precision machined to exacting tolerances. The tool head is also equipped with a hardened steel scraper blade that is designed to remove stubborn sealant residues from the crankshaft seal surface.