Smittybilt 2781 Air Compressor vs VIAIR 450P-A EF

Last updated: October 22, 2026

The Smittybilt 2781 Air Compressor is the better tire inflator overall, rated 3.8 to 2.8. The Smittybilt 2781 Air Compressor leads on airflow and value. The Smittybilt 2781 Air Compressor costs $77.61 less ($229.99 vs $307.60).

Smittybilt 2781 Air Compressor vs VIAIR 450P-A EF

VIAIR 450P-A EF
#9 in Heavy duty2.8Full review

For RV, trailer and big-truck owners who run high pressures or fill many tires in a row and want a compressor that never needs a rest. For fastest fills at trail pressures, the 400P EF is quicker.

Amazon $307.60
$307.60

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?

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 weightSmittybilt 2781 Air CompressorVIAIR 450P-A EF
Overall rating3.8/52.8/5
Value 35%64 $229.9946 $307.60
Airflow 30%100 160 L/min (maker)28 62 L/min (maker)
Features 20%60 runs 40 min at a time, 150 PSI max; no auto shutoff60 100% duty cycle, 150 PSI max; no auto shutoff
Warranty 15%0 1-year warranty0 1-year warranty

Specifications

Smittybilt 2781 Air CompressorVIAIR 450P-A EF
Inflating
Max pressure150 PSI150 PSI
Airflow (maker)160 L/min62 L/min
Auto shutoffNoNo
Duty cycle40 min on100% (continuous)
Power
PowerBattery clampsBattery clamps
Power bankNoNo
Power cord10 ft6 ft
Build
Air hose288 in360 in
LightNoNo
Dimensions-12.4 x 5.8 x 7.4 in
Weight21 lb13 lb
Warranty1 year1 year

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