Highway 22 Plus Wiring System
Universal 22-circuit wiring harness with a built-in LED flasher, 20A relay and high-amp alternator kit with two 175A Megafuses. Easy for first-timers, trusted by pros.
Install Level: Moderate
Universal harness; not pre-cut for a specific vehicle.
Our goal with the changes in the Highway 22 Plus is to preserve the same feel as the original, with some modernization and ease of use improvements for both backyard and professional builders. Each kit will now include a built-in LED flasher to support LED turn signals without the need to purchase an additional item. We’ve added back up light feed and power wires to make the harness easier to install in a more modern vehicle. The pre-installed 20 amp relay can now be easily changed to function as either a keyed 12 volt or ground triggered item.
We’ve also improved our instructions to cite a wider range of examples and real-world scenarios. The panel labeling has also been updated along with the above physical changes, including wording modifications for enhanced clarity. The wiper circuit has been upgraded to a 20 amp fuse to support all aftermarket wiper systems. This has been made an accessory circuit for more adaptability. The AC/Heat fuse has also been moved to an accessory circuit to eliminate draw from the blower motor while the vehicle is being started.
All kits will feature our new high amp alternator and main power connection kit. This allows for the use of high amp alternators, and provides an even better level of fuse protection for the panel and charging system. This new connection kit utilizes 6 ga wire and two 175 amp Megafuses. Extra connectors and wiring have been added to more easily support a 4-headlight system without an additional add-on purchase.
Longer neutral safety wires for cars with console shifters
These original features that made the Highway Series the most popular wiring system available are still part of the new Highway 22 Plus:
- G-10 composite panel base measuring 7.5”L x 4.5”W x 3.125”H, and nylon 6/6 panel components.
- GXL/XLPE GM color-coded wire.
- Easy-to-read wire labeling every 3”- 4”.
- Battery and accessory power expansion via heavy duty power studs on the panel.
- Self-locking screw clamp interface.
- American Autowire’s signature gauge cluster disconnect.
- Ignition, headlight and dimmer switches are included.
- Full-color, tabloid-sized, step-by-step instructions
*All Classic Update Kits are currently averaging 4-5 weeks from date of order.
Vendor: American Autowire
Circuits: 22
Panel base: G-10 composite measuring 7.5 inch L x 4.5 inch W x 3.125 inch H
Panel components: nylon 6/6
Wire: GXL/XLPE GM color coded
Wire labeling every 3 to 4 inches
Battery and accessory power expansion via heavy duty power studs on the panel
Self-locking screw clamp interface
Gauge cluster disconnect
Built-in LED flasher
Pre-installed 20 amp relay; configurable as keyed 12 volt or ground triggered
Wiper circuit: 20 amp; accessory
AC/Heat circuit: accessory
High amp alternator and main power kit: 6 gauge wire; two 175 amp Megafuses
Switches included: ignition; headlight; dimmer
Instructions: full color; tabloid sized; step by step
Listed price 759.00 USD
Variant count: 1
This listing is tagged into every generation bucket the store stocks: Ford Trucks 1948-52 through 1973-79; Chevy Trucks 1947-54 through 1973-87; and Ford Bronco 1966-77 and 1978-79.
Published year range on this listing: Universal.
