1991 dodge cummins wiring harness | eBay Save 1991 dodge cummins wiring harness to get e-mail alerts and updates on your eBay Feed. + Items in search results. Find the right parts for your 1991 Dodge. Enter Model. Tell us about your vehicle to find the right parts faster. DODGE RAM 5.9 CUMMINS DIESEL ENGINE BLOCK HEATER CORD WIRING HARNESS NEW MOPAR (Fits: 1991 Dodge) dodge cummins wiring harness | eBay Find great deals on eBay for dodge cummins wiring harness. Shop with confidence. Skip to main content. eBay Logo: 1991-1993 DODGE RAM 250/350 1ST GEN CUMMINS REG CAB LONGBOX FRAME WIRING HARNESS. Pre-Owned. $129. From Canada. 2002 DODGE 5.9 CUMMINS 24V ENGINE WIRING HARNESS OEM See more like this.