VIAIR 400C Dual VMS Vehicle-Mounted Compressor with Cradle Bracket

Short Product Summary

The VIAIR 400C Dual VMS pairs two 400C compressors on one cradle bracket, giving 4x4s, overlanders and expedition builds a permanent onboard air source rather than a portable unit to fetch and connect. It arrives with the mounting hardware, pressure switch, in-cab switch and wiring harness needed to get it wired into the vehicle.

Why This Product

Airing down for sand, rocks or corrugations is only half the job; every tyre still has to come back up, and big tyres, air lockers, air bags and air tools all call for plenty of air. The Dual VMS puts two 400C compressors on one bracket for high airflow, and because it's wired into the vehicle it's ready at the in-cab switch instead of packed away in a bag.

Key Features

• Two compressors, one bracket – dual VIAIR 400C units share a single cradle bracket for one combined air source
• Universal cradle bracket – a silver bracket that mounts both compressors together for a simplified installation
• In-cab switch and pressure switch – start the system from inside the cab while the pressure switch manages it automatically
• Wiring harness and mounting hardware included – everything needed to wire the system into your vehicle comes in the kit
• Runs more than tyres – power air lockers, air tools, air horns and air bags from the same system
• Built for expedition use – made to keep working through overlanding trips and heavy-duty off-road travel

Ideal For

• 4x4 owners running lockers or air tools who want onboard air for both their tyres and their accessories
• Overlanders and expedition builds that need a permanent air source wired straight into the vehicle
• Owners of large off-road tyres who air down often and want strong airflow on tap for the trip back

Local Support from 4Matt Campers

Want help deciding between the single and Dual VMS setup? Our Western Cape team can talk through your accessories and tyre size first.

Technical Specifications

• Brand: VIAIR
• Configuration: Two VIAIR 400C compressors on one universal cradle bracket
• Mounting Bracket: Silver, universal fit
• Control: In-cab switch with automatic pressure switch
• Typical Uses: Tyre inflation, air lockers, air tools, air horns and air bags

What's Included

• Two VIAIR 400C compressors mounted on a universal cradle bracket
• Wiring harness
• Pressure switch
• In-cab control switch
• Mounting hardware

Optional Fitment / Upgrade Notes

Before you order the Dual VMS, a few things to sort out:

• This is a vehicle-mounted system, so we'd recommend having it professionally fitted, and checking with us first that there's room for both compressors and the bracket
• VIAIR's Tyre Inflation Kit is sold separately, so add one if you don't already carry one
• Tell us which accessories you plan to run off it, such as lockers, air tools or tyres, so we can confirm this is the right size system for your build

Complete Your Setup

Pair it with a recovery kit for the trail, browse the rest of the VIAIR range for tanks and blow guns, or see our other 4x4 parts and accessories.

FAQ

Does it come ready to wire in?
This one comes ready to fit: it includes the in-cab switch, pressure switch, wiring harness and the hardware to mount it.

Can I run air lockers and air tools off this system?
Yes. Besides tyre inflation, it's built to run accessories such as air lockers, air tools, air horns and air bags.

Is a tyre inflation kit included?
No. The tyre inflation kit is sold separately, so add one if you don't already have one.

Should I fit this myself?
It's a vehicle-mounted system, so we recommend professional fitting, and we can help confirm there's enough mounting space first.

What's the difference between this and the single 400C VMS?
This version pairs two 400C compressors on one bracket for more air delivery than a single unit; the standard VMS runs one compressor.