VIAIR Overland
VIAIR’s line of onboard air systems and portable compressors are part of every overlander’s list of essential products. Self-reliance travel begins with having the right tools for the job so you can focus on your next adventure. VIAIR’s compressors easily air up large off road tires to the proper PSI. Viair compressors also have the ability to power air lockers, air tools, or send out warning signals using an air horn.
Portable Options

89P-RVS Tire Inflator
The VIAIR 89P-RVS is a compact 12-volt portable tire inflator specifically designed for Class B RVs. This essential RV tire inflator will fill most Class B tires from 80 to 90 PSI in less than 2 minutes. The 89P-RVS features a new and improved longer air hose to reach your Class B tires.

400P-RVS Tire Inflator
The VIAIR 400P-RVS Automatic 12-volt portable tire inflator kit is specifically designed for Class C and smaller RV’s. This 33% duty cycle compressor is the ONLY tire inflator on the market capable of airing up to 150 PSI.

450P-RVS Tire Inflator
The VIAIR 450P-RVS Automatic 12-volt portable tire inflator is for use with Class A and smaller RV’s. The 100% duty cycle is the ONLY tire inflator on the market capable of reaching pressure up to 150 PSI and can be operated for up to 40 minutes at a time before needing to rest.
Hardmount Options

400H-Automatic Compressor
The 400H-Automatic Compressor (400H-A) is VIAIR’s newest addition to our H model family. With 33% duty cycle, this hard mount compressor is intended to fill tires up to 35” and can be operated for up to 40 minutes at a time before needing to be rested (at up to 40 PSI).

450H-Automatic Compressor
The 450H-Automatic Compressor (450H-A) is VIAIR’s newest addition to our H model family. With 100% duty cycle, this hard mount compressor is intended to fill tires up to 37” and can be operated for up to an hour at a time before needing to be rested.
Onboard Air Systems

When to use an Onboard Air System vs. Portable Compressor
