Viair Dual 400C Onboard Air System

Fastest Filling to Continue Honking!


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If you have the need for speed the Viair 20015 Dual 400C Onboard Air System is just what you are looking for! While not a constant duty or heavy-duty system, with a 33% duty cycle, the Viair Dual 400C Onboard Air System is definitely the fastest system in its class with insane refill times. Don't let the lower duty cycle fool you, the Viair Dual 400C Onboard Air System is still a powerful 150 PSI system, able to run air lockers, air tools, air up tires up to 40” and power Hornblasters train horns. The overclocked dual 400C Compressors included will fill up their 2-Gallon tank from empty to full in only a minute flat and recharges the system from 110-145 PSI in a stunning 20 seconds! 

As a complete kit, the Viair Dual 400C Onboard Air System includes all parts and hardware needed, including 20 feet of 20” Airline, 110-150 PSI Pressure Switch, 40-Amp Relay, 1/4" NPT Drain Cock, 1/4" NPT Compression Fitting,175PSI Safety Valve and 20 feet of 12-Gauge Wire. Viair included a few extras to maximize the potential of this kit, including an air source relocation kit, air pressure regulator, 30-foot coil hose with 200 PSI air gun with gauge, as well as a dash panel with a gauge.

0 to 145 PSI 1 min. (± 05 sec.)
110 to 145 PSI 20 sec. (± 03 sec.)
37″ X 12.5″ FILL RATE
0 to 30 PSI 3 min. 25 sec. (± 10 sec.)
15 to 30 PSI 1 min. 40 sec. (± 05 sec.)
40″ X 15.5″ FILL RATE
0 to 30 PSI 3 min. 35 sec. (± 10 sec.)
15 to 30 PSI 1 min. 45 sec. (± 03 sec.)
  • Part Number: AS-240D
  • Manufacturer: Viair
  • MPN: 20015
  • Refill Time: 24 Seconds
  • Empty Fill Time: 1 Min 22 Sec.
  • Operating Pressure: 150 PSI
  • Restart Pressure: 110 PSI
  • Drain Cock: Yes
  • Safety Valve: Yes, 175 PSI
  • Relay: Yes, 40 amps
  • Air Tank: Viair 2.0 Gallon 150 PSI 6 Port Tank
  • Tank Volume: 2.0 gal (7.6 L)
  • Tank Ports: 6 x ¼″ NPT
  • Tank Length: 19.00″ (482.6 mm)
  • Tank Width: 6.00″ (152.4 mm)
  • Tank Height: 7.50″ (190.5 mm)
  • Tank Weight: 9.645 lb (4.37 Kg)
  • Air Compressors: 2x Viair 400C Air Compressors
  • Max Amperage: 59 amps (29.5 each)
  • Max Output: 3.54 CFM (1.77 each)
  • Maximum Duty Cycle:  33% @ 100 PSI
  • Compressor Length: 8.00″ (203.2 mm) (each)
  • Compressor Width: 4.00″ (101.6 mm) (each)
  • Compressor Height: 7.05″ (179.07 mm) (each)
  • Compressor Weight: 6.95 lb (3.15 Kg) (each)
  • Pressure Switch: Viair 110/150 PSI Switch
  • Pressure Switch Fitting: ⅛″ NPT male
  • Tire Inflation Chuck Type: Inflation Gun
  • Inflation Gun Max Press. : 200 PSI
  • Hose Length: 30 ft (9.14 m)
  • Money-Back Guarantee/Refund Policy
    All merchandise unless otherwise indicated may be returned within 30 days from the shipment arrival date for a refund. A Returned Merchandise Authorization (RMA) number is required for all returns. A 15% restocking fee may apply. Additional deductions may be made to reflect the products current market value. These terms apply to all refunds. Most products are shipped with a refund/replacement guarantee period unless otherwise noted in the product listing. Customers must inform of any order discrepancy within 7 days from the invoice date so that we may investigate and resolve the situation accordingly.
  • Warranty
    This product is backed by Viair's One-Year Manufacturer's Defect Warranty!
  • Satisfaction Guarantee offers our customers a 30-day satisfaction replacement or refund guarantee on all purchases, except when otherwise noted in the product listing.
  • Cross-Shipments will not cross-ship returned merchandise.
  • Physical Damage Policy
    Physical damage to any product purchased at will effectively void warranty coverage. Physical damage includes but is not limited to improper handling and/or any other type of damage sustained by irregular usage.

Warnings & Notices

Safety warning icon

This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to