For off-roaders who air down and want fast refills on big tires without paying ARB prices. Drivers who only top up car tires should get something smaller.
Smittybilt $229.99
For truck, Jeep and SUV owners who air down on weekends and want a proven compressor at a sensible price. Bigger tires or long sessions call for a 400P or 450P.
- Battery clampsPower
- 150 PSIMax pressure
- 65.1 L/minAirflow
- NoAuto shutoff
- 1 yearWarranty
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
- Airs up 33 in truck and Jeep tires much faster than a socket inflator
- 25 ft hose with a built-in deflator lets you air down and up with one tool
- Runs half an hour straight at normal tire pressures
- Long track record and parts support
- No auto shutoff: you watch the inline gauge
- Needs a rest at high pressures (33% duty cycle at 100 PSI)
- Has to be clamped to the battery under the hood
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | 30033 |
|---|---|
| Inflating | |
| Max pressure | 150 PSI |
| Airflow (maker) | 65.1 L/min |
| Auto shutoff | No |
| Duty cycle | 30 min on |
| Noise | 78 dB |
| Power | |
| Power | Battery clamps |
| Power bank | No |
| Power cord | 8 ft |
| Build | |
| Air hose | 300 in |
| Light | No |
| Dimensions | 9.0 x 4.9 x 7.5 in |
| Weight | 8.7 lb |
| Warranty | 1 year |
Alternatives in this type
For serious overlanders with 35 in and larger tires, or groups airing up several vehicles, who want the fastest portable air and can justify the price. Most drivers are better served by a single-motor unit.
Amazon $955For car, SUV and light-truck owners who want a sturdier, battery-powered alternative to a socket inflator for the trunk. Off-roaders airing up 33 in tires should step up to a 300P or 400P.
Amazon $89.89Compare
Compare the VIAIR 300P with any other tire inflator →
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