1989-1993 Cummins Fuel Injector Return Manifold – PN 3909696

Description This is the fuel return line from the injectors that is very prone to cracking when removed. It runs from all 6 injectors, to the backside of the block where it makes a connection, and heads back to the tank. One needed per engine. Don’t forget to order the 6 horseshoe washers required for install. They are sold separately here: