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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!
  • Plug-and-play with 1968-96 GM tilt steering columns (can be spliced into others)
  • Uses modern blade-style ATO/ATC fuses in place of outdated glass fuses
  • Pass fuel line, cables and wiring neatly though body panels without the risk of damage

Comes as a Kit

Key Specs

BrandSpeedway Motors

Need To Know

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Details

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.

 

Features

  • 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 & 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

Replacement Parts are available individually: Fusible LinkHeadlight Switch, Dimmer SwitchHorn Relay, and a Fuse Block Repair Kit.

 

Grommet Kit

Grommets 

  • 1/8" x 1/4"15 pieces
  • 7/32" x 5/16"10 pieces
  • 9/32" x 1/2"7 pieces
  • 5/16" x 9/16"3 pieces
  • 3/8" x 15/32"6 pieces
  • 3/8" x 1/2"5 pieces
  • 3/8" x 13/16"3 pieces
  • 7/16" x 3/4"4 pieces
  • 1/2" x 19/32"3 pieces
  • 5/8" x 31/32"3 pieces
  • 3/4" x 15/16"2 pieces

Rubber Plugs

  • 9/32"     20 pieces
  • 3/8"     20 pieces
  • 1/2"10 pieces
  • 5/8"5 pieces
  • 3/4" 4 pieces
  • 7/8" 3 pieces
  • 1"2 pieces

 

Charts

Specifications

KEY SPECS
BrandSpeedway Motors
GENERAL
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.