VIAIR 400P – 40045 Portable Air Compressor

Product Description

The VIAIR 400P AUTOMATIC 12 Volt Portable Air Compressor for Truck Tires

The 400P tire pump for trucks, SUVs, RVs and more is portable, lightweight, and has an automatic shut-off setting. With a maximum dimension of 10.87 inches and weight of 10.7 pounds, it’s easy to store in your trunk or top box for easy access and never be without air.

Electric Truck Tire Pump with Carrying Case

Conveniently stored in a durable canvas carrying case with top handle, the 400P tire inflator air compressor is ready to use at any moment, whether you’re at home, stopped on a busy roadway or out in the middle of nowhere.

Compatible with All Vehicles

From trucks and SUVs, to motorcycles and side-by-sides, this small air compressor is portable and powerful. Filling a 35-inch tire from 15 to 30 PSI in less than 2 min 45 sec or less, the 400P gets you back on the road in minutes, no matter what rig you drive.

Fast & Easy to Use – No Programming Required

Attach the alligator clips to your vehicle’s battery terminals, start your engine, turn the compressor on and it will pressurize the hose to 150 PSI and turn off. Connect the air hose to your vehicle’s tire, and start filling with air by pulling the trigger on the inflation gun.

From Road to Trail

VIAIR’s battery powered air compressor pumps are loved by daily commuters, families, and extreme off-road enthusiasts alike for their powerful, reliable performance in a small package.

12V Battery Clamps for Higher Performance

Offroading applications have higher performance demands that cigarette lighter plugs are unable to meet. Enthusiasts prefer direct battery connections for their trucks, Jeeps and 4x4s because it accommodates the increased current draw of larger, more powerful compressors. While VIAIR does offer cigarette lighter models, we recommend compressors with battery clamps for serious for offroad use.

From the Manufacturer

40045 Standard Features

• Permanent Magnetic Motor
• Duty Cycle: 33% @ 100 PSI
• Max. Working Pressure: 150 PSI
• Max. Amp Draw: 26 Amps

AUTOMATIC 12V AIR COMPRESSOR: The VIAIR 400P Automatic is a portable air compressor built for trucks, SUVs, Jeeps, RVs, and off-road vehicles with tires up to 35 inches. Its automatic pressure-control system and direct-drive gearless motor support convenient tire-to-tire transitions for daily maintenance, road trips, camping, overlanding, and trail use.
VERSATILE VEHICLE INFLATION: This automatic tire inflator works with trucks, SUVs, Jeeps, 4x4s, side-by-sides, RVs, motorcycles, bicycles, and compatible inflatables. Connect the heavy-duty battery clamps to a running vehicle battery, attach the press-on chuck, and use the trigger-style inflation gun to add or release air while monitoring pressure.
COMPLETE PORTABLE KIT: This off road air compressor kit includes a 25-foot 5-in-1 inflator and deflator hose with an inline 100 PSI gauge, 8-foot power cord, three inflation tips, Presta valve adapter, aluminum I-Beam sand tray, thermal overload protector, 40-amp inline fuse holder, press-on tire chuck, and dual-compartment carrying bag.
150 PSI HIGH-AIRFLOW PERFORMANCE: This 150 PSI air compressor delivers a 2.30 CFM free-flow capacity and operates with a 33% duty cycle at 100 PSI. Powered directly by a 12V vehicle battery, this heavy duty tire inflator supports tires up to 35 inches, while its IP54-rated housing helps resist dust and water spray during outdoor use.
READY FOR EVERY ADVENTURE: Keep this portable tire inflator for truck and SUV use inside your vehicle for off-road trails, camping, overlanding, towing, road trips, and routine pressure checks. The compact design, stable sand tray, long hose, organized carry bag, and direct-battery power make it a practical vehicle tire inflator for travel.