VIAIR 485C (Gen. 2) Platinum Air Compressor (For Onboard Tanks)

(3 customer reviews)


VIAIR’s new 485C compressor delivers game-changing performance, rated at 100% duty @ 200 PSI.
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This next generation compressor is a true 200 PSI-rated working pressure pump. The 485C features newly-developed sleek head design, increased duty cycle and quieter dB levels.

At a Glance

  • High Performance, Low Power Draw – This compressor draws the same amount of power as a 380c. While only drawing 23 amps, this compressor outputs 2.24 CFM @ 0 head PSI!
  • Thermal Overload Protector
  • 100% Duty Cycle @ 200 PSI – Viair’s latest flagship model, the 485, has an incredible 100% duty cycle @ 200 PSI! This compressor is a workhorse that doesn’t stop.
  • Extremely Fast Refill Times – Viair’s 485c can refill a 5-gallon tank from 165-200 PSI in 2 Minutes 15 Seconds!
  • IP67 Certified – This compressor is IP67 certified. As long as the air filter has been relocated, this compressor can be exposed to the elements.

What’s in the Box

  • 485C Platinum Compressor
  • Air Filter Assembly
  • VIAIR Removable Filter Cover (2) Replacement Air Filter Elements
  • Remote Mount Bracket
  • Set of Remote Mount Fittings
  • Set of Spare Air Filter Elements
  • (2) Leader Hose Clips
  • Air Line Clip with Included Hardware
  • Mounting Hardware
  • Stainless Steel Braided Leader Hose with Inline Check Valve
  • Air Line (For Remote Mount Filter Installation)


  • 12-Volt
  • Permanent Magnetic Motor
  • Duty Cycle: 100% @ 200 PSI
  • Max. Working Pressure: 200 PSI
  • Max. Air Tank Size: 5.0 Gallon
  • Combined Max. Amp Draw: 23 Amps
  • Ingress Protection Rating: IP67
  • Dimensions: 10.63L x 4.1W x 6.44H
  • Net Weight: 11.10 lbs.
  • Supply Voltage: 13.8 Volts


0 3.82 23 0 110.0 23
10 3.51 26 1.0 93.0 27
20 3.27 30 2.0 84.0 31
30 3.05 32 3.0 75.0 35
40 2.90 35 4.0 71.0 37
50 2.73 37 5.0 65.0 39
60 2.61 38 6.0 61.0 41
70 2.45 40 7.0 55.0 41
80 2.34 41 8.0 50.0 42
90 2.24 41 9.0 45.0 42
100 2.09 41 10.0 41.0 42
110 1.94 42 11.0 39.0 41
120 1.87 42 12.0 34.0 40
130 1.72 42 13.0 32.0 40
140 1.64 42 14.0 29.0 39
150 1.55 42
160 1.48 41
170 1.37 41
180 1.29 41
190 1.22 40
200 1.13 39

* Supply Voltage: 13.8 Volts


0 to 200 PSI 2 min. 20 sec. (± 10 sec.)
165 to 200 PSI 35 sec. (± 03 sec.)
0 to 200 PSI 4 min. 50 sec. (± 15 sec.)
165 to 200 PSI 1 min. 15 sec. (± 05 sec.)



Dimensional Drawing

Wiring Diagram

Additional information

Weight 11.1 lbs
Dimensions 10.63 × 4.1 × 6.44 in


3 reviews for VIAIR 485C (Gen. 2) Platinum Air Compressor (For Onboard Tanks)

  1. Mike

    Does this compressor actually shut off at 200 psi ?I finally got mine up and running and it’s over 200 psi and hasn’t stopped running yet.I’m starting to get a little nervous here.Ok so this is a $400+ compressor and they couldn’t be bothered to put in a pressure switch. I actually had to buy one separate.WTF.

  2. Robert Givvens

    I purchased the Viair 485c to add an on-board air compressor to my truck for airing up tires for a variety of reasons. I was expecting a little more umph out of this unit, and sadly, don’t really feel like it’s quite there. The substantial price tag makes this unit quite the unicorn on the market, in that the price is almost twice of similar competitors, with lower CFM ratings. Would I buy it again? I’m not sure if I would, and here’s why:The unit is of high quality — it sounds good, it’s solid, and I do think it’s a great compressor — so the critique stems from the price-to-value and price-to-quality ratios. Is it worth its price? I am not so sure…In testing this unit, it looks like I can fill a 32×10″ tire from 15 PSI to 35 PSI in about 3 minutes. Not bad! But also not great, considering the price. Competing units pump faster, and I was hoping for a faster fill.The next time that makes me wonder is the way this unit heats up. I did multiple tests, including one in the garage, and then one in-field after driving for a few hours. From 70 degrees, the unit heats up quickly — after filling 4 tires from 15 PSI to 32 PSI, I found the temps hit around 215 F at the head. That’s pretty hot, but not as hot as the max 245 F temp achieved in-field in the exact same fill. 245 F is getting way up there for a compressor unit that doesn’t accept any oil.Another issue with this unit and its siblings is that the leader hose can’t be removed without voiding the warranty — because the leader-hose is apparently part its heat management. Well, bad news, Viair, not all of our applications are compatible with the big 18 inch long whip that comes on this unit, so we’re having to kiss that warranty g’bye or just go with a really janky installation.Overall, I’ve had great experiences with Viair products, but I’m not sure this one meets the mark at its price-point. I will stand corrected if it happens to last a very long time, but right now, I’m focused on performance and how it seems to function. This unit would be a market leader if (and only if) they (1) dropped the price by at least 25%, (2) if the unit included a sealed computer-style fan that helped to cool the head whenever it’s on, and (3) if they found a better way to heat-sink the outlet tube than the giant leader-hose whip. Until then, I’m satisfied with the purchase, but not thrilled about it — I look at and think, “well, that works, but the cost was too high and the performance is a little too low.” C+, but I at the price I was looking for at least an A-.The place where this unit really shines is when combined with multiple other Viair accessories, such as the bracket, manifold, and the switch/relay options — that ecology is really what I was buying into with this unit and that was achieved.Hope that helps other buyers looking for a high value, high performance air compressor option for airing up tires and a permanent installation.

  3. RV Customer

    Great product saved me in a pinch. My accuair ct tank took a dump and compressor wouldn’t start. This product was basically plug and play into my airlift 3P system and my endo ct3 tank. And it’s Pretty quite in my opinion

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