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Viair 40044 400P-RVS Portable Automatic Tire Inflator Kit for Class C and smaller RV's

Brand: Viair
Part Number: 40044
Product Type: Tire Inflator Kit
Condition: New
Notes: The 400P-RVS does not work with presta bicycle valves
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Sale: $369.95
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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.

Tires are the foundation of your home while on the road. That's why tire pressure maintenance is essential for all RVers. The 400P-RVS has a newly integrated 40" 90-degree twist on chuck to make it easier for filling tires while standing. This compressor will inflate most Class C RV tires from 80 to 90 PSI in just 46 seconds. It can run continuously for approximately 20 minutes at 100 PSI before needing to rest. The "RVS" line is designated as "RV-Safe" because they are specifically designed and tested for the RV market. Prevent wasted time locating the nearest gas station (or avoid being stuck on the side of the road) by utilizing this fundamental tire inflator.

How to use:

To use this compressor, simply attach the heavy-duty battery clamps to the RV's battery and start the engine. Connect the tire chuck to a tire valve stem and turn the unit on. The 400P-RVS Automatic comes with a close-ended gas station-style air gun for added convenience and contains the automatic shut-off function of a larger powerful portable tire inflator. Each tire inflator comes equipped with hoses long enough to reach your RV tires, a convenient carry bag, and all necessary components.

Portable compressors with automatic shutoff provide an auto stop/start function similar to newer vehicles turn off when at a stop. This feature comes into play when moving from tire to tire, and when checking tire pressure in the middle of a tire fill. A typical portable compressor must be turned off between tire fills, and anytime you want to check tire pressure. If you aren't near the compressor, this can turn into going back and forth from the tire to the portable compressor to turn the unit on and off. Automatic portables will save you time & effort to get tires inflated quickly.


  • Thermal overload protector
  • Automatic shut-off function
  • Primary and extension air hoses
  • Vibration-resistant diamond-plate sand tray
  • Heat shielded quick connect coupling
  • Gas station-style tire inflation gun with 160 PSI gauge
  • Heavy duty dual battery clamps with inline fuse
  • 45-degree extended reach chuck (for dual rear wheels)
  • 90-degree twist-on chuck
  • Heavy duty deluxe carry bag
  • 3 pc. inflation tips kit


  • RVS Portables: 400P-RVS
  • Voltage: 12 V
  • Motor Type: Permanent Magnetic Motor
  • Duty Cycle: 33% @ 100 PSI
  • Maximum Working Pressure: 150 PSI
  • Maximum Amp Draw: 30 A
  • Maximum Tire Size: 275/80R22.5
  • Ingress Protection Rating: IP54
  • Power Cord Length: 8 ft
  • Primary Air Hose Length: 30 ft
  • Extension Air Hose Length: 30 ft
  • 90-Degree Twist-On Chuck Air Hose Length: 40"
  • CFM: 2.30 CFM
  • Length: 10.87"
  • Width: 5.83"
  • Height: 7.48"
  • Product Weight: 10.75 lb

Technical Files 

Manual Instructions

Dimensional Drawing




Shipping Information

  • Item Requires Shipping
  • 1.0 lbs.
  • W1.0000” x H1.0000” x L1.0000”
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