VIAIR 400C VMS Vehicle-Mounted Compressor

Short Product Summary

The VIAIR 400C VMS wires a single 400C compressor straight into a 4x4, overlander, caravan or expedition vehicle for onboard air on demand. It comes with the mounting hardware, pressure switch, in-cab switch and wiring harness needed to fit it, plus thermal overload protection for extended use.

Why This Product

A portable compressor has to be unpacked and connected every time you need air. Wiring a compressor into the vehicle means air is on hand at the flick of an in-cab switch, whether you're topping up tyres on a gravel road or running air lockers, air bags or air tools out on the trail.

Key Features

• In-cab switch operation – start the system from inside the cab instead of reaching for a portable unit
• Automatic pressure switch – keeps air supply managed without you having to watch a gauge
• Thermal overload protection – guards the compressor during extended use in demanding conditions
• Wiring harness and mounting hardware included – everything needed for a standard installation comes in the kit
• Runs more than tyres – powers inflatables, air tools, air horns and air bags too
• Suited to remote, regular use – built for vehicles that spend time away from a reliable air supply

Ideal For

• 4x4 and overland vehicles that need onboard air on tap rather than a portable unit to fetch and connect
• Touring and work vehicles operating away from town where dependable air supply matters
• Owners running air lockers or air tools who want one system for both tyre inflation and accessories

Local Support from 4Matt Campers

Not sure if the single or Dual VMS suits your build? Speak to our Western Cape-based team before you order.

Technical Specifications

• Brand: VIAIR
• Configuration: Single VIAIR 400C compressor, vehicle-mounted
• Control: In-cab switch with automatic pressure switch
• Protection: Thermal overload protection
• Typical Uses: Tyre inflation, air lockers, air bags, air horns, air tools and inflatables

What's Included

• VIAIR 400C compressor
• Wiring harness
• Pressure switch
• In-cab control switch
• Mounting hardware

Optional Fitment / Upgrade Notes

A couple of things to check before ordering:

• This is a vehicle-mounted system, so we'd recommend professional fitting; confirm with us first that you've got the mounting space for it
• Let us know which accessories you want to run, such as lockers, air tools or tyres, so we can confirm this single-compressor system will keep up
• VIAIR's Tyre Inflation Kit is sold separately, so add one if you don't already carry one
• If you think you'll need more airflow down the line, ask us about the Dual VMS version rather than upsizing later

Complete Your Setup

Browse VIAIR's full range for tyre inflation kits and air tanks, add 4x4 accessories to run off it, or see our other compressors.

FAQ

What comes with the kit?
It ships with the mounting hardware, pressure switch, in-cab switch and wiring harness you need for a standard fit. The tyre inflation kit is sold separately.

Can it run more than tyre inflation?
Yes, it's also built to power air tools, air horns, inflatables and air bags.

Is there any protection if I run it hard?
It has thermal overload protection built in for extended or demanding use.

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

What if I need more air than this gives me?
VIAIR also offers a Dual VMS version pairing two 400C compressors on one bracket for more air delivery; ask us which suits your build.