Smittybilt 2781 Air Compressor
#3 in Heavy dutyFull review
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$229.99
The Smittybilt 2781 Air Compressor is the better tire inflator overall, rated 3.8 to 3.3. The Smittybilt 2781 Air Compressor leads on airflow. The VIAIR 300P wins on value. The VIAIR 300P costs $80.04 less ($149.95 vs $229.99).
VIAIR 300P
#5 in Heavy dutyFull review
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.
Amazon $158.06 VIAIR $149.95$149.95
Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Smittybilt 2781 Air Compressor for airflow (160 L/min (maker) vs 65.1 L/min (maker)).
- Choose the VIAIR 300P for value ($149.95 vs $229.99).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every heavy duty tire inflator; a clear win is highlighted. How we rank explains each one.
| Factor weight | Smittybilt 2781 Air Compressor | VIAIR 300P |
|---|---|---|
| Overall rating | 3.8/5 | 3.3/5 |
| Value 35% | 64 $229.99 | 83 $149.95 |
| Airflow 30% | 100 160 L/min (maker) | 31 65.1 L/min (maker) |
| Features 20% | 60 runs 40 min at a time, 150 PSI max; no auto shutoff | 60 runs 30 min at a time, 150 PSI max; no auto shutoff |
| Warranty 15% | 0 1-year warranty | 0 1-year warranty |
Specifications
| Smittybilt 2781 Air Compressor | VIAIR 300P | |
|---|---|---|
| Inflating | ||
| Max pressure | 150 PSI | 150 PSI |
| Airflow (maker) | 160 L/min | 65.1 L/min |
| Auto shutoff | No | No |
| Duty cycle | 40 min on | 30 min on |
| Noise | - | 78 dB |
| Power | ||
| Power | Battery clamps | Battery clamps |
| Power bank | No | No |
| Power cord | 10 ft | 8 ft |
| Build | ||
| Air hose | 288 in | 300 in |
| Light | No | No |
| Dimensions | - | 9.0 x 4.9 x 7.5 in |
| Weight | 21 lb | 8.7 lb |
| Warranty | 1 year | 1 year |