
440P
- Best for
- Portable tyre inflation
- Tyres
- Up to 37″
- Pressure
- 150 PSI
- Duty cycle
- 33% @ 100 PSI
Verified tyre-size capacity gives useful headroom above your selected diameter.
From roadside tyre inflation to complete onboard air systems. Find the right setup for what you actually need.
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Results stay live as you narrow the choice. We only show products approved in the OBA Intelligence Registry.
This branch is being rebuilt from the verified hard-mount/system capability matrix. It will not guess a compressor.
This branch is being rebuilt from verified tank, pressure, flow and duty data. It will not guess a compressor.
Air-tool matching requires verified delivered CFM at working pressure and tool demand. We are not using voltage as a tool-selection question.
Start with the job you need to perform. We will route this into a verified branch rather than force unrelated technical questions.
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Up to eight quick technical snapshots from the approved OBA Intelligence Registry. Refreshed daily.

Verified tyre-size capacity gives useful headroom above your selected diameter.

Verified tyre-size rating covers your selected diameter at the model limit.

Verified tyre-size rating covers your selected diameter at the model limit.

Verified tyre-size rating comfortably covers your selected diameter.

Verified tyre-size rating covers your selected diameter at the model limit.

Verified tyre-size rating comfortably covers your selected diameter.
Only verified model facts are shown. Check individual product specifications and application requirements before purchase.
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Maximum PSI is only part of the story. Airflow, duty cycle, power supply, tyre size and the demands of your application all matter.
Explore the Tech Centre ↗Understand the difference between moving air quickly and achieving the pressure you need.
Understand why continuous use matters for repeated inflation jobs.
See when a portable inflator works better than a fixed air system.
Specialist product knowledge, authentic VIAIR equipment and support.