1973–1979 Ford Truck Tail Light Harness
NOTE: Includes 18’ chassis supply lead, a new chassis plug, and fuel sending unit wiring (Single/Dual)
Complete Harness with Trailer Option:
- Includes 7 integrated wires for trailer wiring, built directly into your harness
- Includes a 4-flat / 7-round style, ready to use trailer plug, already installed in your harness!
- Designed to fully replace your tail light wiring harness and chassis supply
- Fully replace your chassis supply wiring from your firewall to your tail lights!
- Chassis supply lead is 18’ long, fitting all trucks!
- We include wiring for your fuel sending unit (s)
- Fits both single tanks and dual/auxiliary tanks
- Designed to replace your old chassis connection with a new weather-proof chassis plug
- Includes new tail light bulb sockets and chrome license plate light assemblies
- This replaces the all of the wiring from your firewall to your tail lights
Includes 18’ chassis supply lead, a new chassis plug, and fuel sending unit wiring (Single/Dual)
What All Harnesses Include:
- Every harness offered starts with a solid, heavy-duty foundation—built to handle real-world use.
- All connections are soldered and sealed with heat shrink, giving you years of dependable service.
- The manufacturer includes triple ground wires and a clean black finish on every harness for improved reliability.
- Each harness comes with all necessary installation hardware, along with a detailed harness description to make your install quick and simple.
Built heavy duty, built to work, built to last — Made in USA.
Fits:
1973, 1974, 1975, 1976, 1977, 1978, 1979 Ford F100, F150, F250, F350 2 or 4 wheel drive | 
