Viair Dual Platinum 485C Onboard Air System

Honking & Heavy Duty Pneumatic Use


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If you are looking for a complete onboard air solution and won’t settle for anything but the best for your ride, the Viair 20085 Dual Platinum 485C Onboard Air System is the answer you have been looking for. Rocking two of Viair’s latest and greatest compressors, the Viair 20085 Dual Platinum 485C Onboard Air System is both a fast-fill and constant duty system with a 100% duty cycle all the way up to 200 PSI and lightning-fast refill times. These beastly dual Platinum Viair 485C Compressors are able to fill the included 2.5-gallon tank from empty to full in 2 minutes and 20 seconds and will recharge the system from 165-200 PSI in a lightning-fast 35 seconds! This premium system is capable of powering air lockers, air tools, airing up ties up to 40”, blasting your HornBlaster Horns, and much more without breaking a sweat. 

As a complete kit, the Viair 20085 Dual Platinum 485C Onboard Air System includes all parts and hardware needed, including 20 feet of 20” Air Line, 165-200 PSI Pressure Switch, 40-Amp Relay, 1/4" NPT Drain Cock, 1/4" NPT Compression Fitting, 250 PSI Safety Valve and 20 feet of 12-Gauge Wire. The Viair 20085 Dual Platinum 485C Onboard Air System comes loaded with extras to give you everything you need to get the most out of one of the best onboard air kits you can buy, 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 built-in gauge.

0 to 200 PSI 2 min. 20 sec. (± 10 sec.)
165 to 200 PSI 35 sec. (± 03 sec.)
37″ X 12.5″ FILL RATE
0 to 30 PSI 3 min. 46 sec. (± 10 sec.)
15 to 30 PSI 1 min. 52 sec. (± 10 sec.)
40″ X 15.5″ FILL RATE
0 to 30 PSI 4 min. 39 sec. (± 15 sec.)
15 to 30 PSI 2 min. 02 sec. (± 10 sec.)
  • Part Number: AS-2485D
  • Manufacturer: Viair
  • MPN: 20085
  • Refill Time: 35 Seconds
  • Empty Fill Time: 2 Min 30 Sec.
  • Operating Pressure: 200 PSI
  • Restart Pressure: 165 PSI
  • Safety Valve: 235 PSI
  • Relay: 40 amps (each)
  • Air Tank: Viair 2.5 Gallon 200 PSI 6 Port Tank
  • Tank Part Number: TA-206V4
  • Tank MPN: 91028
  • Tank Volume: 2.5 gal (9.5 L)
  • Tank Ports: 6 x ¼″ NPT
  • Tank Length: 23.50″ (596.9 mm)
  • Tank Width: 6.00″ (152.4 mm)
  • Tank Height: 7.50″ (190.5 mm)
  • Tank Weight: 11.805 lb (5.35 Kg)
  • Air Compressors: 2x Viair Platinum 485C Air Compressors
  • Compressor Part Number: AC-485L
  • Compressor MPN: 48532
  • Voltage: 12 volts DC
  • Max Amperage: 44 amps (22 each)
  • Max Output: 4.48 CFM (2.24 each)
  • Maximum Duty Cycle:  100% @ 200 PSI
  • Compressor Length: 11.25″ (285.75 mm) (each)
  • Compressor Width: 4.0″ (101.6 mm) (each)
  • Compressor Height: 6.75″ (171.45 mm) (each)
  • Compressor Weight: 9.75 lb (4.42 Kg) (each)
  • Pressure Switch: Viair 165/200 PSI Switch
  • Pressure Switch PN: PS-200R
  • Pressure Switch MPN: 90118
  • 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

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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