Classic Chevy & GMC Truck Wiring and Electrical Restoration Parts (1955–1987)
Nothing stops a classic truck build in its tracks faster than bad wiring. Decades-old insulation cracks, connections corrode, and the electrical gremlins that plagued these trucks from the factory only get worse with age. Whether you're replacing a single switch, refreshing your battery setup, or rewiring your entire 1955–1987 Chevy or GMC truck from scratch, H&H Classic Parts carries everything you need — including complete wiring harness kits made exclusively in the USA by American Autowire, the most trusted name in classic vehicle electrical systems.
American Autowire: Premium USA-Made Wiring Kits for Classic Trucks
When it comes to rewiring a classic Chevy or GMC truck, American Autowire is the industry's first choice. Every wiring kit H&H Classic Parts carries in this category is manufactured in the United States by American Autowire — a company that has spent decades engineering electrical solutions specifically for classic vehicle applications. Their kits are not generic universal harnesses cut to fit. They are vehicle-specific systems designed around the exact electrical architecture of your truck, eliminating the guesswork and improvisation that causes problems down the road.
H&H Classic Parts is an authorized distributor of American Autowire products, giving you access to their full lineup with the added confidence of expert support from a team that knows these trucks inside and out. You can browse the fullAmerican Autowire brand page at H&H Classic Parts for the complete selection.
Factory Fit Wiring: Stock-Correct Restoration Harnesses
American Autowire's Factory Fit wiring line is engineered to replicate the original factory harness exactly as it was when your truck rolled off the assembly line. Every connector, color code, and routing path is matched to original GM specifications, making this the correct choice for concours restorations, numbers-matching builds, and any project where factory correctness is the priority. Installation is straightforward because everything plugs in exactly where the original wiring did. Shop Factory Fit wiring kits athhclassic.com/c-1180460-chevy-gmc-truck-parts-wiring-electrical-parts-factory-fit-wiring.html.
Classic Update Wiring Kits: Modern Performance in a Classic Truck
For builders who want the reliability and capability that a modern electrical system provides without sacrificing the stock appearance of their truck, American Autowire's Classic Update kits are the answer. These vehicle-specific kits retain all of the factory wiring connections and routing for a clean, stock-looking installation — but they add every modern upgrade you'd want, including improved circuit protection, higher amperage capacity, and compatibility with today's accessories and electronics. If you've added fuel injection, an electric fan, upgraded lighting, or a modern stereo system, a Classic Update kit gives your electrical system the capacity to handle it all. Browse Classic Update Wiring Kits athhclassic.com/c-756046-truck-wiring-classic-update-wiring-kits.html.
Switches, Battery Parts & Wire Gutters for Classic Chevy & GMC Trucks
A complete electrical restoration goes beyond the main harness. H&H Classic Parts stocks all of the supporting electrical components needed to finish the job correctly.
Switches
Original switches in 1955–1987 Chevy and GMC trucks are among the most common failure points in aging electrical systems. Contacts corrode, mechanisms wear out, and cracked housings create shorts. We carry correct-style replacement switches from trusted suppliers including OER Parts and Counterpart Automotive to restore proper function and original appearance to your dash and cab. Shop switches athhclassic.com/c-1180459-chevy-gmc-truck-parts-wiring-electrical-parts-switches.html.
Battery Parts
A solid, correctly installed battery setup is the foundation of any reliable electrical system. We carry battery boxes, trays, hold-downs, and related hardware to keep your battery properly secured and protected. Whether you're restoring your truck to factory-correct battery placement or relocating the battery as part of a custom build, ourbattery parts category has what you need, with options from The Battery Mat Company and other quality suppliers.
Wire Gutters
Wire gutters are the unsung heroes of a clean, professional wiring installation. They route and protect wiring harnesses along the firewall and inner cab, keeping everything organized, protected from heat and abrasion, and looking factory-correct. We carry replacement wire gutters that match original GM specifications for 1955–1987 Chevy and GMC trucks. Shop wire gutters athhclassic.com/c-756056-truck-wiring-wire-gutters.html.
More Trusted Brands for Classic Truck Electrical Parts
Beyond American Autowire, H&H Classic Parts sources classic truck electrical components from a carefully selected lineup of suppliers. OER Parts provides factory-correct replacement electrical components engineered to original GM specifications. United Pacific and East Coast Reproductions supply a wide range of lighting and electrical accessories. Dynacorn, Counterpart Automotive, Fargo Automotive, and Route 66 Reproductions contribute additional components across the category. AUVECO Products and PYCL Classic Locks round out the selection with fasteners, hardware, and lock components that tie into the electrical system.
As an authorized distributor for American Autowire and these supporting brands, H&H Classic Parts carries genuine products — not knockoffs. Browse the fullClassic Truck Parts catalog or check outwhat's currently on sale for current deals on electrical and wiring parts.
Why Buy Classic Truck Wiring Parts from H&H Classic Parts?
Wiring is one of the most intimidating aspects of a classic truck restoration — and one of the most consequential. A poorly done wiring job creates safety hazards, intermittent electrical failures, and hours of troubleshooting down the road. H&H Classic Parts takes the guesswork out of the process by carrying only proven, quality-tested products from manufacturers who specialize in classic vehicle electrical systems. Our team of enthusiasts is available to help you choose between a Factory Fit and Classic Update kit, determine which switch fits your application, or talk through any other electrical question you have. Call 479-787-5575 (Mon–Fri, 8am–5pm CST),submit an inquiry online, or read what other builders are saying at ourcustomer reviews page.
FAQs: Classic Chevy & GMC Truck Wiring & Electrical Parts
What years of Chevy and GMC trucks do these wiring and electrical parts fit?
This category covers 1955 through 1987 Chevy and GMC trucks, including C10, C20, C30, K10, and K20 pickups, full-size Suburbans, and classic Blazers. American Autowire wiring kits are vehicle-specific — each kit is engineered for a defined range of years and applications, so fitment is precise rather than generic. Use the year filters on each subcategory page to narrow results, or call our team at 479-787-5575 to confirm which kit is correct for your truck before ordering.
What is the difference between the American Autowire Factory Fit and Classic Update wiring kits?
The Factory Fit line replicates your truck's original factory harness exactly — same connectors, same color codes, same routing — making it the right choice for stock restorations where original appearance and correct factory wiring are the priorities. The Classic Update kits are vehicle-specific like the Factory Fit line but add modern electrical upgrades, including higher amperage capacity, improved circuit protection, and compatibility with aftermarket accessories like electric fans, fuel injection, and upgraded stereo systems. If your build is close to stock, Factory Fit is typically the right call. If you've made engine, accessory, or performance upgrades, a Classic Update kit will give your electrical system the headroom to support them reliably.
Do I need to replace the entire wiring harness, or can I repair sections of my existing wiring?
It depends on the condition and extent of the damage. If your truck's wiring has isolated issues — a failed switch, a corroded connector, a broken section of loom — targeted repairs using replacement components are often the most practical approach. If the harness is extensively corroded, previously spliced and hacked, brittle throughout, or the truck has been modified significantly over the years, a complete harness replacement with an American Autowire kit is almost always the better long-term solution. It eliminates hidden problems, provides a clean foundation for the rest of the build, and typically saves time compared to chasing gremlins through a compromised original harness. Our team can help you evaluate your situation — call 479-787-5575 orcontact us online.
Are American Autowire wiring kits truly made in the USA?
Yes. Every American Autowire wiring kit carried by H&H Classic Parts is manufactured in the United States. American Autowire has built their reputation on domestic production and quality control, which is reflected in the consistency, materials, and reliability of their harnesses. This is a meaningful distinction in a market where many wiring products are sourced overseas with inconsistent quality standards. When you order an American Autowire kit through H&H Classic Parts, you're getting a genuine USA-made product backed by both the manufacturer and our team.
Does H&H Classic Parts ship wiring and electrical parts nationwide?
Yes. H&H Classic Parts ships wiring and electrical parts to customers across the United States from our Bentonville, Arkansas location. All in-stock orders are processed and shipped within one business day. Most wiring kits and electrical components ship via UPS or USPS depending on size and destination. For complete details on shipping timelines, carriers, and our return policy, visithhclassic.com/p-33579-shipping-returns.html.
