VIAIR 300P

Last updated: October 22, 2026

VIAIR 300P
3.3/5#5 of 9 in heavy duty tire inflators
3.3

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
Check price at Amazon$158.06Check price at VIAIR$149.95

Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • 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
Cons
  • 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 number30033
Inflating
Max pressure150 PSI
Airflow (maker)65.1 L/min
Auto shutoffNo
Duty cycle30 min on
Noise78 dB
Power
PowerBattery clamps
Power bankNo
Power cord8 ft
Build
Air hose300 in
LightNo
Dimensions9.0 x 4.9 x 7.5 in
Weight8.7 lb
Warranty1 year

Alternatives in this type

VIAIR 88P

For 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 $89.89
$89.89

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