Headlight Pigtail Connector Harness – 7-Wire Halogen Headlamp Plug, Compatible
Relevant numbers :P92-4343 (Headlamp Wiring Harness, T680 legacy halogen system); P54-6164-100 / P54-6164-100R / P54-6164-100L / P54-6164-110 (T680 legacy headlamp assemblies; old# P54-6103-10000). Use to cross-check that your truck has the legacy halogen lamp; this 7-wire pigtail mates that system.