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VIAIR Medium Duty Onboard Air System

On Sale Now! Free Shipping Included! Save 2% on the VIAIR Medium Duty Onboard Air System by VIAIR at Daily News Detroit. MPN: 10003. Hurry! Limited time offer. Offer valid only while supplies last. Viair Medium Duty Onboard Air System for 33'' Tires is a pre-packaged compressed air solution that provides a 33 percent duty cycle, 325C compressor,

VIAIR Medium Duty Onboard Air System by VIAIR (Image #1)
VIAIR Medium Duty Onboard Air System by VIAIR (Image #2)
VIAIR Medium Duty Onboard Air System by VIAIR (Image #3)
VIAIR Medium Duty Onboard Air System by VIAIR (Image #4)
Brand: VIAIR
4.3 out of 5 stars with 7 reviews
Condition: New
Availability: In Stock
You Save: 1%



Product Description & Reviews

Viair Medium Duty Onboard Air System for 33" Tires is a pre-packaged compressed air solution that provides a 33 percent duty cycle, 325C compressor, 150 PSI-rated 2.5 gallon air tank, and all components needed to install basic vehicle-based pneumatics. Features 33 percent duty cycle and 100 PSI pressure.
VIAIR's Medium Duty Onboard Air System (OAS) is an all-in-one compressed air solution designed to work in conjunction with the vehicle it is mounted on. Included with this unit is a 150 PSI, 33% duty cycle VIAIR 325C compressor, a 2.5 gallon air tank, and all components needed to install a working system capable of inflating tires up to 33". This compression ability, along with the system's included pressure switch, multiple ¼" NPT port openings and more make it the perfect solution for users who want to go mobile with their medium use pneumatic tool set.

VIAIR logo
Medium Use Compression Needs for the Road
Rated for inflation of 33" tires, some pneumatic tools and expandable depending on your specific needs, VIAIR's Medium Duty OAS is a match for many compression applications faced on the road. The system is designed to be mounted on compatible vehicles, effectively creating a pneumatic workshop on wheels. Supplied components/features include a 33% duty cycle 325C compressor with 150 PSI capabilities, a 2.5 gallon air tank, a pressure switch with relay, a dash panel gauge with on/off switch and a variety of additional components needed to install the working system in your vehicle. Inflation hose for tire inflation is not included with this kit.

Packaging for the VIAIR Medium Duty Onboard Air System
150 PSI of on vehicle power with a 1.77 CFM maximum flow.
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System contents for the VIAIR Medium Duty Onboard Air System
Everything you need right out of the box to turn your vehicle into a medium use mobile repair shop of pneumatic tools.
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Dimensional design drawing for the 325C compressor included with the VIAIR Medium Duty Onboard Air System
Easy to mount and configure for different uses.
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System Specifications
  • Motor voltage - 12 volt
  • Motor type - Permanent magnetic
  • Max. duty cycle: 33% @ 100 PSI
  • Max. working pressure - 150 PSI
  • Max. Amp draw - 21 Amps
  • Max. ambient temperature - 158°F
  • Min. ambient temperature - -40°F
  • CFM @ 0 PSI - 1.77
  • ¼" NPT intake port
Fill Rates:
2.5 Gallon Tank
31" x 12.5"
33" x 12.5"
0 - 145 PSI
4 min. 15 sec.
110 - 145 PSI
1 min. 25 sec.
0 - 30 PSI
4 min 58 sec.
7 min. 55 sec.
15 - 30 PSI
2 min 45 sec.
3 min 55 sec.

1-Year Limited Warranty
VIAIR Corporation warrants this product, when properly installed and under normal conditions of use, to be free from defects in workmanship and materials for a period of one (1) year from its original date of purchase. This warranty covers product defects only. It does not cover incidental or consequential damages as a result of misuse or abuse.

What's in the Box

  • 1-2.5 gallon VIAIR air tank (six port)
  • 1-325C 150 PSI VIAIR air compressor
  • 1-¼" NPT quick connect coupler (F)
  • 1-Dash panel gauge with on/off Switch
  • 1-Pressure switch with relay (110 PSI-on, 150 PSI-off)
  • 1-reducer (⅛" NPT F to ¼" NPT M)
  • 1-¼" NPT - 175 PSI safety valve
  • 1-¼" NPT drain cock
  • 1-¼" NPT compression fittings
  • 1-4" strip of continuous grommet material
  • 1-20' section of 12 gauge wire with inline fuse holder
  • All necessary electrical connectors
  • 1-Accessory airline
  • Owner's manual
About VIAIR Corporation
VIAIR offers the most complete line of air compressors and air accessories for both the on-and off-road markets available anywhere. VIAIR products are used in the OEM segment, 4x4 and Sport Air Suspension and have become the industry standard for both 12- and 24-volt automotive applications worldwide. Their compressors are currently being used in every corner of the globe, in the harshest climates imaginable and the company is recognized by its customers and peers alike as the leading manufacturer of high performance air compressors for mobile pneumatic applications.

Features & Highlights

  • Intended for inflation of tires up to 33 inch. Designed to be installed and mounted onto the vehicle.
  • Includes all parts needed for installation of you very own onboard air solution for tire maintenance and small pneumatic tools, except for air hose.
  • Comes with one VIAIR 325C air compressor anda 110 to 145PSI pressure switch.
  • 150 PSI maximum working pressure and 33% duty cycle
  • Can be used to inflate helper bags for load leveling, inflate four tires up to 31 inches in diameter or use with heavy duty air horns. One year manufacturer's defect warranty included with copy of the receipt. Please check the manufacturer's website for a wiring diagram.

Additional Information

Tire Air Compressors & Inflators
All VIAIR products come with a One Year Manufacturer Defect Warranty
Part Number:
Item Weight:
32 pounds
Item Size:
14.25 x 10.25 x 26.5 inches
Package Weight:
27.5 pounds
Package Size:
14.25 x 10.25 x 26.5 inches


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