3957290 OE Injector Return Check Valve.
Located on the back of the cylinder head.
Fits 2003, 2004, 2005, 2006, 2007 Dodge Ram 5.9L Cummins
The injector return check valve located on the back of the cylinder head can leak fuel after it gets some time on it. We offer the Cummins 3957290 replacement part to fix this problem. To install this check valve you will need two gaskets: 12MM gasket14MM gasketSee below to add to your order.