GMC Wiring Harnesses & Electrical - OEM-Fit Harnesses & Components
Restore your GMC ’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 —restoring the wiring behind the dash, under the hood, and through the body to factory-correct, or factory-improved, condition.
Our GMC 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 —not a close approximation.
Use the Vehicle Selector above to find the correct wiring or electrical component for your GMC , or browse below to explore available options. Whether you’re chasing judging points with a numbers-matching restoration or simply getting your GMC running right, Factory Interiors makes it easy to restore your electrical system with wiring products proudly made in the USA.
C15
C15 Suburban
C1500
C1500 Suburban
C25
C25 Suburban
C2500
C2500 Suburban
C35
C3500
Caballero
K15
K15 Suburban
K1500
K1500 Suburban
K25
K25 Suburban
K2500
K2500 Suburban
K35
K3500
K5 Jimmy
R1500
R1500 Suburban
R2500
R2500 Suburban
R3500
S15 Jimmy
S15 Sonoma
Truck
V1500
V1500 Suburban
V2500
V2500 Suburban
V3500
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 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 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 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 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!!
(2131 Total Products)