DICMIC Trailer Wiring Harness for Ford F250/F350 2002-2004 — 4 & 7-Pin Direct-Fit, Sealed Connector

This DICMIC 4 & 7 pin trailer tow wiring harness is a direct-fit replacement for 2002–2004 Ford F250 and F350 Super Duty models (replace part #2C3Z-13A576-DA), providing plug-and-play connections for lights, brakes and auxiliary power.

Designed to match the factory wiring layout and mounting points, this harness gives you a robust, ready-to-install interface between your truck and trailer. It combines a sealed multi-way socket, a spring-loaded dust cover and protected wire conduit to keep contacts clean and wires secure under towing conditions. Surface-mount components resist vibration, and the assembly is sized to match the original equipment for a straightforward swap.

How will this harness connect my trailer's lights and brakes?

The harness consolidates trailer lighting and brake signals into standard 4- and 7-pin connectors so your trailer receives turn signals, brake lights, tail lights, backup lights, electric brake power and auxiliary circuits. Wiring follows factory signal assignments to prevent cross-wiring and reduce installation time.

• 4-pin for basic lights (tail, stop, left/right turn)
• 7-pin blade for brakes, reverse, and 12V aux power
• Color-coded wires matched to Ford factory pinouts
• Sealed socket keeps contacts dry and dust-free

Is installation difficult or will I need to modify my truck?

Installation is designed to be plug-and-play: the harness replaces the original connector without cutting factory wiring or fabricating mounting brackets. Surface-mount technology and OEM-style terminals make the electrical fit seamless while the included bracket secures the multi-tow connector in the same location as the original.

• Direct replacement—no splicing or special tools typically required
• Mounting bracket included for original fitment
• Spring-loaded dust cover snaps closed when unused
• Sealed tubing protects wires from abrasion and road debris

What durability features help this harness last while towing?

The harness uses vibration-resistant surface-mount components, a sealed 7-way blade outlet, and a protective black tubing conduit to withstand the mechanical stresses of towing. Materials and construction were chosen to resist moisture, road grime, and repeated connection cycles, extending service life compared with unprotected assemblies.

• Surface-mount components limit solder joint fatigue from vibration
• Sealed 7-way blade with dust cover keeps corrosion at bay
• Black sealed tubing organizes and shields wiring harness runs
• High-quality connector housings replace worn OEM parts

Will this part number match my vehicle and what should I check first?

Confirm compatibility by matching your existing connector and the OEM replace number 2C3Z-13A576-DA; this harness is produced for 2002–2004 Ford F250 and F350 Super Duty trucks. Before purchase, inspect the current plug style and mounting bracket to ensure identical fit and alignment.

• Compatible with 2002–2004 Ford F250 and F350 Super Duty
• Replace part number: 2C3Z-13A576-DA
• Check your truck’s current connector shape and mounting tab
• Contact seller for clarification if your OEM part differs

Who is this for: This DICMIC wiring harness is for truck owners, fleet managers and DIY mechanics who need a reliable, OEM-style replacement for a worn or damaged trailer connector on 2002–2004 Ford Super Duty F250/F350 vehicles. It suits anyone wanting a clean, factory-aligned installation that restores full 4- and 7-pin trailer functionality without extensive rewiring or aftermarket adapters.