SD-SPD-GM Super Duty Complete Wiring Kit
InfoVehicle Info Needed
K&RPART NUMBER: 572-SD-SPD-GM

SD-SPD-GM Super Duty Complete Wiring Kit

$64999
7 left in stock
ShippingShips on Nov 02, 2026
Lowest PriceLowest Price Guarantee

Super Duty Complete Wiring Kit
  • 8 ft. Harness
  • Switch Panel
  • Gunmetal Finish
  • Sold as a Kit

    SD-SPD-GM Super Duty Complete Wiring Kit Features:

    • All necessary quality terminals
    • Color and labeled wires
    • Heat Shrink
    • Wire ties
    • Laminated poster size, full color wiring diagram

    FAQ:

    What is a wiring harness for car for?

    • A car wiring harness serves as an organized system of wires, connectors, and terminals, facilitating electrical power and signal distribution across various vehicle components. It ensures proper electrical connections, powering essential functions like lights, ignition, sensors, and more in a vehicle.

    Do I need a wiring harness for my car?

    • Yes, a wiring harness is crucial for any vehicle. It provides a standardized and organized method for connecting electrical components, ensuring reliability, safety, and proper functionality of the car's electrical system. Whether for repairs, upgrades, or new installations, a wiring harness simplifies electrical connections.

    Can a car run without a wiring harness?

    • Absolutely not. A wiring harness is fundamental to a vehicle's electrical system. It acts as the nervous system, linking all electrical components together. Without it, crucial electrical connections would be absent, preventing the vehicle from starting or functioning properly.

    Can you drive a car with a bad wiring harness?

    • Driving with a faulty wiring harness is highly discouraged. A deteriorating or malfunctioning wiring harness can lead to electrical issues, intermittent faults, component failures, or even pose safety risks due to potential short circuits or electrical fires. It's advisable to replace or repair a damaged harness promptly.
  • Race-Proven Modular Design
    with Clean Installation


    These revolutionary wiring harness kits feature a remotely-mounted power board, engraved chrome switch panel, and soft touch lighted switches. The power board has 6 fused circuts, 4 high-current relays, fuse status & relay output LEDs, and Time or RPM shift select switch. Click to view the installation typical of this kit.

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    Additional Features

    • Show-quality chromed switch panel
    • More input/output circuits than any other system on the market
    • Unique shifter output circuit operates any shift actuator
    • Switch between Time or RPM shifting
    • All wire colored/labeled for simple installation and traceability (more wire than any other kit)
    • Extra long crank trigger wires (with connector) and terminated coil wires
    • Includes alternator charging wire, terminals, heat shrink tubing, wire ties, and laminated full-color poster of wiring diagram
    • 2-year Manufacturer's Warranty

     

    The K+R Dash-Mount Switch Panel/Wire Harness Kits are purpose-built for racers and performance enthusiasts who demand clean wiring, reliable power distribution, and professional-grade control from the driver’s seat. Designed primarily for drag racing and competition vehicles, these dash-mounted switch panel systems simplify electrical management while improving safety and consistency. Whether you’re wiring a new build or upgrading an outdated setup, K+R Dash-Mount Switch Panel/Wire Harness Kits provide a streamlined solution trusted by serious motorsports competitors.

    In high-performance applications, electrical reliability is just as important as engine power. A properly integrated switch panel and race wire harness ensure consistent activation of ignition systems, fuel pumps, cooling fans, transbrakes, and other critical components. K+R’s engineering precision and race-proven components make these kits a dependable choice for competition-focused builds.

    Performance Benefits & Key Features

    K+R Dash-Mount Switch Panel/Wire Harness Kits are engineered to deliver organized, high-quality electrical control in demanding racing environments. Key features often include clearly labeled switches, durable aluminum or composite panels, pre-terminated wiring harnesses, and high-amperage compatibility for critical race electronics.

    Performance enthusiasts prioritize factors such as current load capacity, circuit protection, wiring quality, and ease of installation. These kits are designed to reduce wiring clutter, minimize voltage drop, and improve overall electrical system reliability. Clean routing and professional-grade connectors help prevent intermittent issues that can compromise race performance.

    For drag racers, having quick and reliable access to ignition controls, transbrake activation, and accessory circuits is essential. These switch panels help centralize controls, improving driver focus and response during staging and competition. Their robust construction withstands vibration and repeated use in high-horsepower race vehicles.

    Fitment, Compatibility & Applications

    K+R Dash-Mount Switch Panel/Wire Harness Kits are compatible with a wide range of GM, Ford, and Mopar-based drag racing vehicles configured with aftermarket ignition systems and race electronics. They are commonly installed in bracket cars, Super Comp dragsters, door cars, and custom race builds where electrical organization and reliability are critical.

    These kits are designed for motorsports use rather than daily drivers, making them ideal for dedicated track vehicles and high-performance race applications. Installation typically involves integrating the harness with existing electrical components, ensuring proper grounding and circuit protection.

    If you’re building a race-ready electrical system and demand professional-grade control, explore the K+R Dash-Mount Switch Panel/Wire Harness Kits at JEGS and equip your vehicle with the reliability and precision serious racers depend on.

    Part TypeToggle Switch Panel
    Product LineK+R Dash-Mount Switch Panel/Wire Harness Kits
    BrandK&R
    Package Height4.6
    Package Width10.3
    Package Length22.3
    Weight11.8 PG
    Part CategoryPerformance Parts
    Wiring Harness IncludedYes
    Number Of Switches6
    Fused CircuitsYes
    Part FitmentUniversal
    Relay IncludedYes
    Vendor Part NumberSD-SPD-GM
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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