Viair 40042 H-Model Air Compressor

    By Viair | Mfr#: 40042 | Tiger#: TS66909


    • Choice of 2 duty cycles
    • 1.80 or 2.30 CFM flow rate
    • 150 PSI maximum working pressure
    • 30 amps maximum current consumption
    • 12-volts permanent magnetic motor
    • Built-in on/off power switch
    • Thermal overload protector
    • Runtime of 20 mins and 60 mins
    More Product Details What's Included
    • Product Options
      Select Duty Cycle

    Ships Out Within: 10-12 Weeks

    California Proposition 65 WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and reproductive harm. For more information go to

    Overview for Viair 40042 H-Model Air Compressor

    The Viair H-Model Compressor is a hard mount compressor capable of pumping 2.30 CFM flow at zero PSI head pressure. It is designed to provide on-demand air when needed and easily fills 31 inches by 10.5 inches tire from 0 to 30 inches in under 2-1/2 minutes. Available in 33% and 100% duty cycle at 100 PSI with a maximum working pressure of 150 PSI.

    Featuring a built-in, moisture resistant On/Off power switch, wiring a switch to the truck is not required. It also includes a heavy duty stainless steel leader hose with a 1/4” quick connect stud for hookup to a coil hose and insulated wiring for simple installation. The Viair H-Model Compressor is easy to use, just mount the compressor, attach a coil hose and turn on.

    The Viair H-Model Compressor is equipped with a permanent magnetic motor with 12-volts motor voltage. It also comes with a thermal overload protector that shuts down the compressor when overheated and automatically restart as normal when cooled. Moisture and dust resistant, it has an IP54 rating. Viair compressors are covered by a 1-year manufacturer’s warranty.

    Configuration Options

    The Viair H-Model Compressor is available in different duty cycle. Please choose from the menu above.

    • 40042: 33%
    • 45042: 100% 

    Item Number





    Motor Voltage

    12 Volts

    12 Volts

    Max. Current Consumption

    30 Amps

    23 Amps

    Motor Type

    Permanent Magnetic

    Permanent Magnetic

    Max. Working Pressure

    150 psi

    150 psi

    Max Duty Cycle (at 72°F & 100 PSI)




    10.08"L x 3.94"W x 6.75"H

    11.63"L x 3.94"W x 6.75"H

    Net Weight

    8.95 lbs

    11.05 lbs