Tuner Harness Plug Kit for 6.7L Cummins is a premium OEM-quality solution exclusively engineered for 2013-2015 Dodge RAM 2500 and 3500 models equipped with the 6.7L Cummins diesel engine. Developed by EGR Performance, this plug-and-play kit efficiently replaces damaged factory wiring harness plugs and seals unused connectors post exhaust or EGR modifications, effectively preventing moisture, dust, and debris contamination—one of the leading causes of 6.7L Cummins electrical system failures.