ARB CKMP12 Portable (V2)

Last updated: October 22, 2026

ARB CKMP12 Portable (V2)
2.8/5#8 of 9 in heavy duty tire inflators
2.8

For overlanders who value ARB’s durability, case and three-year warranty over raw speed. Buyers chasing airflow per dollar will do better with a VIAIR 400P EF.

  • Battery clampsPower
  • 100 PSIMax pressure
  • 75.1 L/minAirflow
  • NoAuto shutoff
  • 3 yearsWarranty
Check price at Amazon$487

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

Pros
  • Built to last: sealed motor, hard-anodized cylinder and a three-year warranty
  • Lives in a tough weatherproof case with room for the hose and fittings
  • Pressure switch stops it when you close the chuck, and it can feed air tools
Cons
  • Costs about twice as much as a VIAIR 400P EF with similar airflow
  • Must rest half of every hour (50% duty cycle)
  • Heavy at over 15 lb in its case, and no auto shutoff at a set pressure

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 numberCKMP12V2
Inflating
Max pressure100 PSI
Airflow (maker)75.1 L/min
Auto shutoffNo
Duty cycle30 min on
Power
PowerBattery clamps
Power bankNo
Build
Air hose276 in
LightNo
Dimensions14.0 x 12.1 x 7.2 in (case)
Weight15.4 lb
Warranty3 years

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
VIAIR 400P EF

For off-roaders on 33 to 35 in tires who air down regularly and want quicker, longer runs than a 300P without paying for a twin. It is the sweet spot of VIAIR’s portable line.

Amazon $252.04
$252.04
VIAIR 450P-A EF

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

Compare

Compare the ARB CKMP12 Portable (V2) with any other tire inflator →

More from ARB: every ARB product ranked.