GMC C25 Suburban Wiring Harnesses & Electrical - OEM-Fit Harnesses & Components
Restore your GMC C25 Suburban’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 GMC C25 Suburban—restoring the wiring behind the dash, under the hood, and through the body to factory-correct, or factory-improved, condition.
Our GMC C25 Suburban 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 GMC C25 Suburban—not a close approximation.
Use the Vehicle Selector above to find the correct wiring or electrical component for your GMC C25 Suburban, or browse below to explore available options. Whether you’re chasing judging points with a numbers-matching restoration or simply getting your GMC C25 Suburban 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 1973-82 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!!!!
ignition module inside distributor to coil, V8 Note: This is the improved 1978-91 style part that is a direct replacement for the original style Distributor Module to Coil Harness. TOTALLY STOCK APPEARANCE WITH DISTRIBUTOR CAP INSTALLED!!
ignition module inside distributor to coil, V8
rear frame connector to rear light assemblies, Suburban, without 40 gallon fuel tank
(40 Total Products)