Buick Centurion Wiring Harnesses & Electrical - OEM-Fit Harnesses & Components

Restore your Buick Centurion’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 Buick Centurion—restoring the wiring behind the dash, under the hood, and through the body to factory-correct, or factory-improved, condition.

Our Buick Centurion 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 Buick Centurion—not a close approximation.

Use the Vehicle Selector above to find the correct wiring or electrical component for your Buick Centurion, or browse below to explore available options. Whether you’re chasing judging points with a numbers-matching restoration or simply getting your Buick Centurion running right, Factory Interiors makes it easy to restore your electrical system with wiring products proudly made in the USA.

1963 Buick Centurion Speaker Harness

rear single seat speaker, Wildcat & Electra 225, Hardtop

1963-1964 Buick Centurion Speaker Lead Wires

rear single seat speaker, Riviera (wiring from rear body intermediate harness to speaker) Use when installing original, replacement, or aftermarket speaker. Made with correct connector for hook-up to current GM replacement speaker and correct connector for connection to original wiring, or cut off connector for hook-up to current GM replacement speaker and solder wires directly to original speaker (as was done originally) or aftermarket speaker.

1964 Buick Centurion Speaker Harness

front single dash speaker, Riviera Use when installing original, replacement, or aftermarket speaker. Made with correct connector for hook-up to current GM replacement or original speaker and correct connector for connection to original radio or radio harness. You can cut off connector for hook-up to current GM replacement speaker and solder wires directly to an aftermarket speaker.

1965 Buick Centurion Speaker Harness

front single dash speaker, Riviera Use when installing original, replacement, or aftermarket speaker. Made with correct connector for hook-up to current GM replacement or original speaker and correct connector for connection to original radio or radio harness. You can cut off connector for hook-up to current GM replacement speaker and solder wires directly to an aftermarket speaker.

1965-1967 Buick Centurion Speaker Harness

1965-1967 Buick Centurion Speaker Harness, built to original specification.

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(309 Total Products)