Dodge Cummins Wiring Harness | eBay 2005 Dodge Ram 2500 3500 Engine Wire Harness Cummins P/N 3972348 3972347. Condition is Used. This is both wiring wiring harnesses for the a 2005 dodge Cummins diesel H.O. This would be considered a fu.. I need the complete wiring harness for a 1992 dodge diesel I need the complete wiring harness for a 1992 dodge diesel 4x4 The wiring harness under the hood and dash A fire started under the from some kind of short which made the brake line from the master cylinder cherry red. causing the wiring to burn. My dodge dealer said they can get everything, but the wiring harness. need to find used harness from a 1991,1992 or 1993 dodge diesel.