Including results for 4 pin harness cover.Do you want results only for 4 pin harnesses cover? 4 Pin Trailer Connector Cover | etrailer Tow Ready replacement 7-way flat pin and 4-flat combo adapter harness for vehicles with a factory socket. Features: Ability to tow trailers with different style trailer connectors Durable plastic shell Provides both a 7-Way and a 4 -Way covered trailer connector Mounting bracket included Notes: Vehicle Amazon: 4 pin wiring harness wwwon›Search›4 pin wiring harness1-16 of over 1,000 results for "4 pin wiring harness" Showing selected results. Universal 4 Pin Trailer Plug 4 Core Departments with Waterproof Cover. HQAP Trailer Wiring Harness Kit 4-Way Flat Wishbone-Style With 4 Flat Connector for Under or Over 80" Wide Trailers. by HQAP.Including results for 4 pin harness cover.Do you want results only for 4 pin harnesses cover?