APEX Design USA Multi Tyre Inflator - 4 Tyre Inflation Kit

Summary

The APEX Design USA Multi Tyre Inflator connects all four tyres to one air source and works them together - one hook-up, four corners rising or falling at the same time, with pressures automatically equalising across the set. The kit pairs the APEX 90 PSI inflator and its slide-valve control with four closed-flow push-on chucks, three composite Y-fittings and 42 feet of 3/8 inch nylon braided air line that you cut to your own wheelbase during assembly, so nothing drags in the mud or catches a tyre. Push the sleeve down to inflate; pull up to stop and read pressure.

Best For

• Drivers airing four tyres at every trailhead who are done doing it one corner at a time
• Group runs and events where pit-stop speed matters
• Setups wanting equal pressures across the axle set without chasing each wheel with a gauge
• Vehicles up to a 150 inch wheelbase - the supplied line is cut to fit yours exactly

One Source, Four Corners

Because all four tyres share one line, the system self-balances: air flows until the set equalises, which is the fastest route to matched pressures side to side. Compared with single-tyre airing - four hook-ups, four gauge checks, four chances to mismatch - the multi-line approach turns pressure changes into one supervised job. It connects to any compressor via the included 1/4 inch NPT adapter and works with standard Schrader valves, so no valve conversion is needed first.

Key Specs

• Manufacturer: APEX Design USA
• Product Type: Four-tyre inflation and deflation kit
• SKU: X02-17-042-3
• Included Items: APEX 90 PSI inflator (slide valve), 4 closed-flow push-on chucks, 3 composite Y-fittings, 42 ft of 3/8 in nylon braided air line, 1/4 in NPT compressor adapter
• Valve Compatibility: Standard Schrader valves
• Wheelbase Coverage: Up to 150 inches (lines cut to length during assembly)

Fitment And Setup Checks

Assembly is part of the product: measure your wheelbase, cut the braided line to suit, and build a harness that fits your vehicle exactly. Check your compressor connection (the 1/4 inch NPT adapter is included) and confirm your wheelbase is within the 150 inch coverage before ordering. The chucks are closed-flow by design - that is what lets the system hold and equalise pressure across all four tyres.

Technical Specifications

Frequently Asked Questions

Why do I cut the hoses myself?

So the harness matches your wheelbase exactly - full-length lines on a short vehicle drag and snag. Measure, cut and assemble once, and the kit fits like it was made for the truck, up to 150 inches of wheelbase.

Does it deflate as well as inflate?

Yes - all four tyres connect to the one line, so the system works pressure both ways and equalises the set while it does it.

Do I need special valves fitted first?

No - it connects to standard Schrader valves, and to any compressor via the included 1/4 inch NPT adapter.

Add the panel mount fitting for a fixed connection point and the four-corner routine gets even quicker.