4 & 7 Pin Trailer Tow Wiring Harness Plug Compatible with 2002 2003 2004 Ford F250 F350 Super Duty Replace# 2C3Z-13A576-DA. Connector Type: 4 & 7 Pin Trailer Tow Wiring Harness Plug. [HIGH QUALITY]- Made of highest grade materials, it has the functions of waterproof, dustproof, impact resistant, and anti-corrosion.
eBay