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 3.5. The Smittybilt 2781 Air Compressor leads on value. The ARB CKMTP12 Twin Portable wins on warranty. The Smittybilt 2781 Air Compressor costs $725.01 less ($229.99 vs $955).
ARB CKMTP12 Twin Portable
#4 in Heavy dutyFull review
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 $955$955
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 value ($229.99 vs $955).
- Choose the ARB CKMTP12 Twin Portable for warranty (3-year warranty vs 1-year warranty).
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 | ARB CKMTP12 Twin Portable |
|---|---|---|
| Overall rating | 3.8/5 | 3.5/5 |
| Value 35% | 64 $229.99 | 0 $955 |
| Airflow 30% | 100 160 L/min (maker) | 100 174.4 L/min (maker) |
| Features 20% | 60 runs 40 min at a time, 150 PSI max; no auto shutoff | 60 100% duty cycle, 150 PSI max; no auto shutoff |
| Warranty 15% | 0 1-year warranty | 100 3-year warranty |
Specifications
| Smittybilt 2781 Air Compressor | ARB CKMTP12 Twin Portable | |
|---|---|---|
| Inflating | ||
| Max pressure | 150 PSI | 150 PSI |
| Airflow (maker) | 160 L/min | 174.4 L/min |
| Auto shutoff | No | No |
| Duty cycle | 40 min on | 100% (continuous) |
| Power | ||
| Power | Battery clamps | Battery clamps |
| Power bank | No | No |
| Power cord | 10 ft | - |
| Build | ||
| Air hose | 288 in | 240 in |
| Light | No | No |
| Dimensions | - | 18.8 x 14.0 x 7.3 in (case) |
| Weight | 21 lb | 33 lb |
| Warranty | 1 year | 3 years |