Ford Mustang Wiring Harnesses & Electrical - OEM-Fit Harnesses & Components
Restore your Ford Mustang’s electrical system with precision-engineered wiring harnesses and electrical components designed specifically for your vehicle. Each harness is manufactured to match the original routing, connectors, and circuits of your Ford Mustang—restoring the wiring behind the dash, under the hood, and through the body to factory-correct, or factory-improved, condition.
Our Ford Mustang electrical lineup includes complete wiring harness sets, battery cables and ground straps, switches, electrical devices, and update/conversion products such as alternator upgrades and electronic ignition conversions. Every component is manufactured and tested to deliver dependable, factory-correct performance, and is organized by your vehicle’s exact year to ensure the harness or component you order is the one built for your Ford Mustang—not a close approximation.
Use the Vehicle Selector above to find the correct wiring or electrical component for your Ford Mustang, or browse below to explore available options. Whether you’re chasing judging points with a numbers-matching restoration or simply getting your Ford Mustang running right, Factory Interiors makes it easy to restore your electrical system with wiring products proudly made in the USA.
for use only with our RestoMod Series wiring system, should your Mega-Fuse become damaged or in need of replacement. NOTE: 2 of these Mega-Fuses are already included with our Classic Update Series wiring system.
Manufactured specifically for 1964-66 models. Designed with the foresight, engineering, and flexibility to bring your electrical system up to date. Choose the routing of the wiring to fit your needs and accommodate all of the most popular custom/aftermarket and reproduction/original accessories available!!!! Includes many of the vehicle's basic electrical devices and detailed instructions!!!!
For use with Classic Update Series Wiring Harness System 510125. Requires use of an original steering column & original hazard flasher switch.
Manufactured specifically for 1967-68 models. Designed with the foresight, engineering, and flexibility to bring your electrical system up to date. Choose the routing of the wiring to fit your needs and accommodate all of the most popular custom/aftermarket and reproduction/original accessories available!!!! Includes many of the vehicle's basic electrical devices and detailed instructions!!!!
Manufactured specifically for 1969 models. Designed with the foresight, engineering, and flexibility to bring your electrical system up to date. Choose the routing of the wiring to fit your needs and accommodate all of the most popular custom/aftermarket and reproduction/original accessories available!!!! Includes many of the vehicle's basic electrical devices and detailed instructions!!!!
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