Genuine Cummins QSB6.7 6D102 4D102 Engine Oil Seal 5259499 3937111
3937111 is a Cummins Front Crankshaft Seal Kit,Cummins Front Crank Seal Service Kit - 89-07 Dodge Cummins 5.9L - 3937111
Is your Cummins leaking oil at the rear of the engine?
Chances are its your rear main seal. This is a genuine Cummins direct replacement seal to get you back on the road with reliability.
This is a genuine Cummins Oil Ring Seal for ISB and B Series engines. This is a genuine Cummins part shipped with a 12-month warranty.
