






🚙 Inflate Fast, Drive Farther — Never Get Stuck Waiting!
The VIAIR 400P-A EF is a rugged, portable 12V air compressor designed for trucks, SUVs, and off-road vehicles. Featuring a powerful 0.48 HP motor, it delivers 2.59 CFM airflow at up to 150 PSI, inflating large 35" tires rapidly with a 10% faster fill rate and 20% enhanced performance. Its automatic shut-off, noise-reducing head, and lightweight I-Beam sand tray ensure quiet, stable operation on rough terrain. Compatible with multiple power sources via a 2-pin SAE connector and 7-way trailer plug, it comes complete with a 25-ft coil hose, inflation gun, and carry bag—making it the ultimate companion for off-road enthusiasts who demand speed, durability, and versatility.
















| ASIN | B0DKGCFYW8 |
| Air Flow Capacity | 2.59 Cubic Feet Per Minute |
| Brand | VIAIR |
| Capacity | 2.59 Cubic Feet |
| Colour | Black |
| Customer Reviews | 4.8 out of 5 stars 20 Reviews |
| Hose Length | 25 Feet |
| Included Components | 25ft Coil Hose, 3pcs Inflation Tips Kit, 400P EF Automatic Portable Compressor, Deluxe Carry Bag, Gas station Style Tire Inflation Gun |
| Included components | 25ft Coil Hose, 3pcs Inflation Tips Kit, 400P EF Automatic Portable Compressor, Deluxe Carry Bag, Gas station Style Tire Inflation Gun Included components 25ft Coil Hose, 3pcs Inflation Tips Kit, 400P EF Automatic Portable Compressor, Deluxe Carry Bag, Gas station Style Tire Inflation Gun See more |
| Item Dimensions L x W x H | 27.6L x 14.8W x 19H centimetres |
| Item Type Name | Portable Air Compressor |
| Item Weight | 10.35 Pounds |
| Manufacturer | Viair Corporation |
| Material | Aluminium |
| Maximum Power | 360 Watts |
| Maximum Pressure | 150 Pound per Square Inch |
| Model Name | 400P EF Automatic |
| Model Number | 40145 |
| Part Number | 40145 |
| Power source | Battery Powered |
| Recommended Uses For Product | Tire Inflation |
| Recommended uses for product | Tire Inflation |
| Special Features | Heavy Duty, Portable, Quick Inflation |
| Special feature | Heavy Duty, Portable, Quick Inflation |
| Style | Enhanced Flow Portable |
| UPC | 818114004704 |
| Unit Count | 1.0 count |
| Voltage | 12 Volts (DC) |
J**E
faster
Upgrade this from 450p auto, takes 1min 20sec from 22psi to 35psi, my tire size is 265 70 18
V**E
Fantastic portable inflator
I paired this compressor with a 4-way inflator, and it's working great on my Jeep Wrangler tires. The airflow is impressive, and it's much quieter than the last Viair portable compressor I had. This one also wanders much less while it's working thanks to the rubber bumpers that connect the pump to the stand. And it runs cooler than I expected - after inflating all 4 tires from trail to highway pressure in one shot, the hose quick connect is quite hot but the pump body stays cool enough to touch. I like that the battery clamps are detachable with an SAE connector; I wired an SAE pigtail directly to my battery and it's much more convenient than clamps.
C**R
Great inflator—nice automatic inflation feature
Works as advertised. Fast inflation, not too loud, decent cables and alligator clips. Must be hooked directly to your car/truck battery terminals. Stays self-contained in the case (included). It does get warm after long run times and needs to cool off. The automatic inflation feature is convenient and is a must (it turns off compressor when it reaches pressure, and only activates upon demand).
L**E
Super Off-Roading Compressor - Fast Air Up Large Tires
Good Purchase ! ! Tremendous heavy duty compressor for off-roading. Fast air up 37" tires. Super reliable and 10 lbs not too heavy. Tough compact nylon carry bag holds everything - compressor, 30 ft coil air hose, air-gun, and so forth - all in one tough nylon case. Built-in SAE 12v connector makes easy connection w 12 AWG battery cable installed separately. The air-gun needs some work -- -- First, remove short floppy hose w lousy right-angle clamp. Port thread is 1/8 NPT. Use adapter to 1/4 NPT. Add brass twist-on chuck to Schrader - see photos. Now can use Schrader hose any length desired. And for easy connect to valve stem use JACO Lightning S2X extension w Self-Locking Nozzle -- -- Second, remove large 150 psi gauge. Again port thread is 1/8 NPT. Replace w MEANLIN gauge 100 psi (or 60 psi) w 1/8 NPT Lower Mount. Now have more compact air gun w custom length hose and better gauge for standard tire pressures
R**N
Top quality compressor.
High quality air compressor. Very fast tire inflation. The automatic feature is super nice. The inflation tool with gauge is top quality. Well worth the money. The customer service is also excellent.
Trustpilot
2 weeks ago
3 weeks ago