Product Summary

Universal Fit, 12 Number of Circuits

  • Perfect for restoration projects, custom vehicles or budget-minded DIY builders
  • Universal design for nearly any 12-volt vehicle – great for engine swaps!
  • Switch functions include left and right turn signals, as well as a 4-way flasher lever for an all-in-one unit
  • This universal 3-position headlight switch features Off, Park, and Headlight/tail light positions
  • This 4 position ignition switch features ACC, OFF, IGN/ACC, and IGN/START functions

Comes as a Kit

Key Specs

BrandSpeedway Motors

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Wiring Harness

Our universal wiring harness is the perfect solution for vehicles with no reproduction harness options, custom builds, or the budget-minded DIY builder. This compact hot rod wiring harness works with nearly any 12-volt vehicle, engine, and transmission combination (carb or EFI, automatic or manual), including engine swaps. This 12-circuit wiring harness is ideal for basic vehicles with minimal power accessories.

A compact fuse box mounts discreetly out of view, or choose an open installation for easy access. Harness consists of 4 branches that are strategically bundled to simplify installation. The 12-foot-long tail light leads allow easy mounting in most compact and mid-size vehicles.

Plug-and-Play with GM Tilt Columns

Wiring up the steering column controls can be a daunting task, but our harness makes it easy. This harness plugs directly into most GM-style tilt steering columns. It connects to aftermarket tilt columns from ididit, Flaming River or Speedway Motors, as well as factory GM tilt columns from 1968-1996 cars, trucks and vans (see our full list of compatible GM columns). If you're sourcing a column from the junkyard, look for one with a flat "ribbon"plug, either 3-7/8"or 4-1/4"long (with 10 or more wires). Ignition switch plugs to connect "keyed"GM columns are also included in this kit.

Not using a GM tilt column? No problem. This harness easily splices into other steering columns with the included pin-out wiring diagram (it helps to have a wiring schematic for your vehicle here, too). Wires are conveniently bundled and labeled every 6 inches - just take your time and be attentive when splicing it in.

Modern High-Quality Insulated Wire

Patches and splicing are tedious and unreliable. Your car deserves better! Start fresh with modern polyethylene-insulated, stranded bare copper wire. Each harness is constructed from premium quality GXL automotive wiring, with the appropriate wire diameter for each fused circuit (ranging 8 to 16 gauge). Every strand of this wire harness is covered with a high-temperature (-40°F to +257°F) outer coating, color coded, and labeled to aid in a smooth installation for any DIY enthusiast. In other words, you can expect the same quality of automotive wiring used by the big 3 OE manufacturers.

Modular Design with Modern Fuses

An innovative 2-piece fuse block design gives easy service, fuse replacement, and endless mounting solutions. Mount the baseplate and then clip in the fuse block assembly. The clip-in fuse block detaches easily for service and arrives complete with modern ATO/ATC blade fuses and a common 2-prong style flasher. No more fragile, corroded glass fuses! Crimp connectors and terminals are included to get you started right away.

Conveniently Bundled Wires

Our universal 12-circuit harness consists of 4 branches that are conveniently bundled, so you can get started right away. Here's a quick rundown of those branches:

  • Front of vehicle/engine feed wires (EFI engines will need an additional engine-specific harness)
  • Dash panel instrument feed wires (mechanical or electric gauges)
  • Ignition/lighting feed wires
  • Rear of vehicle feed wires

The included 5-page instruction booklet, with color printed pictures, covers each of these pre-bundled circuits in detail.


  • Perfect for restoration projects, custom vehicles or budget-minded DIY builders
  • Universal design for nearly any 12-volt vehicle – great for engine swaps!
  • Plug-and-play with 1968-96 GM tilt steering columns (can be spliced into others)
  • Connects directly to aftermarket tilt columns from Speedway Motors, ididit and Flaming River
  • Works with nearly any engine/transmission combination (carb or EFI, auto or manual)
  • Tail light leads are 12 ft. in length
  • Constructed of GXL insulated, automotive-grade copper wiring
  • High-temp polyethylene insulation makes it viable in engine compartments
  • Includes appropriate wire diameter for each fused circuit (ranging 8 to 16 gauge)
  • Compact 3.7"x 1.9"x 3.8"fuse block mounts discreetly out of view
  • Two-piece fuse block design makes for easy fuse block removal/service
  • Uses modern blade-style ATO/ATC fuses in place of outdated glass fuses
  • 12 individually fused circuits, conveniently bundled into 4 "quick start"bales
  • Each wire strand is color-coded and labeled every 6"for easy identification
  • Complete wiring harness kit weighs less than 7.5 lbs. installed


Headlight Switch

This universal 3-position headlight switch features Off, Park, and Headlight/tailight. Screw type terminals. 7/16" mounting hole.

Has a 15 amp per circuit rating at 12 volts.


Ignition Switch

This universal, 4 position ignition switch features ACC, OFF, IGN/ACC, and IGN/START. Screw type terminals. 3/4" mounting hole and 2 keys included.

  • Requires 2-3/8" of space behind dash for clearance
  • Fits 3/4" to 7/8" hole
  • Terminals: 4 screw
  • Actuators: coded tumbler lock, 2 keys
  • Sealed terminal insulator: no
  • O-ring seal in stem: no
  • Ground terminal: no
  • Mounting stem: 3/4"-20
  • Case material: diecast zinc
  • Mounting panel thickness: 3/8"
  • Amperage ratings (current ratings at 12V DC)
    •  Accessory: 10A
    • Ign/Run: 10A
    • Start: 5A


Turn Signal Switch

For early autos not equipped with right and left turn signals. Chrome plated finish. Switch works with 6 or 12 volt systems. Includes wiring diagram. Clamps to any steering column with included stainless hose clamp. Switch has four-way flashers and does not self cancel.

  • Universal fitment
  • Works in 6 or 12 volt systems
  • Easily adaptable to nearly any existing steering column
  • Chrome plastic body with a metal turn signal switch handle
  • 3 position switch: Right, Off, Left
  • Built-in 4 way flasher
  • Fits up to 2-inch steering column
  • Larger clamp (not included) can be fitted for column exceeding 2-inches in diameter


Kit Includes

(1) 12-Circuit Mini-Fuse Universal Hot Rod Wiring Harness Kit

(1) Speedway Universal Headlight Switch

(1) Speedway Universal 4-Way Ignition Switch with Keys

(1) Speedway Heavy Duty Turn Signal Switch



BrandSpeedway Motors
Number of Circuits12
Fuse Block IncludedYes
Compatible with GM ColumnYes
Ignition Key LocationColumn or Dash
Fuse StyleATO/ATC
Sold in QuantityKit
NotesEFI engines will need additional engine-specific harness.