Air-Zenith OB2 Black Air Compressor

(Constant Duty – 200 PSI / 4.25 CFM)


6 reviews

– Sold Out

A compressor so powerful that it’s in a class of its own, the Air-Zenith OB2 Black Air Compressor is made for individuals that demand the best in everything they buy. The all-new second-generation OB2 brings unparalleled performance with an insane 4.25 CFM, double the power of even the best compressors the same size, and able to recharge a 5-gallon tank from 165-200 PSI in just over a minute. With a 100% duty cycle up to 200 PSI, not only is the Air-Zenith OB2 incredibly fast, it is a constant duty compressor that keeps going as long as needed to get the job done. 

Installation for a compressor has never been easier with the Air-Zenith OB2 conveniently prewired with a relay. There are simply 3 leads to connect: 12-volt power, ground, and a 12-volt trigger to connect to your pressure switch No messy wiring or confusing schematics. Purchase the Air Zenith OB2 wiring kit for easy installation. Equipped with an IP55 certified waterproof cooling fan and backed by a 2-year manufacturer defect warranty, you know that the Air-Zenith OB2 is built to last. One look at the Air-Zenith OB2 and you know that you are getting a high-quality compressor. With a glossy stealth-black finish with silver flakes, the Air-Zenith OB2 has a slick professional look that matches the world-class performance it delivers.

  • Fully Rebuildable Patented Interchangeable Piston Technology
  • Oil-less Design
  • 4.25 CFM @ 10PSI
  • Permanently Lubricated Ball Bearings
  • Moisture & Dirt Resistant
  • Stainless Steel Braided Air Hose
  • Heavy-Duty Inline Check Valve
  • Vibration Free Mounting Hardware
  • Two Year Manufactures Warranty
  • Air Zenith OB2 Black Air Compressor
  • Braided Leader Hose & Check Valve
  • Air-Zenith 80 Amp Relay
  • Mounting Hardware
  • Part Number: AC-OB2K
  • Voltage: 12 Volts DC
  • Max Amperage: 35 Amps
  • Maximum Duty Cycle: 100% @ 100 PSI
  • Maximum Pressure: 200 PSI
  • Leader Hose Size: 1/2"
  • CFM @ 10 PSI: 4.25 CFM
  • Length: 12.5″ (317.5 mm)
  • Width: 5.5″ (139.7 mm)
  • Height: 8.0″ (203.2 mm)
  • Weight: 9.75 lb (4.42 Kg)
  • 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 Air-Zenith's Two-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

Customer Reviews

4.8 Based on 6 Reviews
5 ★
4 ★
3 ★
2 ★
1 ★
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United States United States

Best Compressor I've ever purchased!

Fantastic! This thing is really quite and fast! I highly recommend this product and the seller!

Anthony C.
United States United States

Best service I've gotten in a long time from a company.

From start to finish it was very professional friendly no issues

Paul A.
United States United States

Super efficient!

Overall I give it 4 1/2 out of 5 stars. It replaced two smaller compressors I had. It is a bit loud as I use it for train horns on my lifted 2005 F-250 and that’s a loud diesel. With the engine running I can hear it standing by the drivers door with it mounted where the spare tire was. If using in a trunk, I would soundproof the space between trunk and passenger cabin but otherwise the performance is amazing!

Shawn H.
United States United States

New zenith sure compressor

Great customer service . Quality product and fast service .


Works for me

This is my 4th Air Zenith. The first went over 2 years before being destroyed in a fire. The second failed after a year but was covered under warranty and lasted about another year. Number 3 just passed the 2 year point and failed with a bad bearing ( mis-set my timer and it ran for somewhere over 12 hours continuously) . I have replaced the bearing and will keep it as a spare. Hornblasters shipped quickly at a good price and was exactly as described. I have noted through examining the oldest to newest failed units (I never throw anything away) that small internal improvements were made. I run these for about 35 to 45 minutes at a time, 3 times a day, ever other day at about 80 to 150 lbs pressure, so am pretty happy with their performance. The 4 rating instead of 5 is because I believe the wiring at the relay may be a little wimpy for running continuously. It gets pretty warm and iI have measured a voltage drop there. That said, I never had a failure of that wiring while running at 12-13 volts but have melted a relay. They are pricey compared to other pumps, but the air volume per current draw is great. I'm happy with this pump for my somewhat unconventional use.