Tire inflation is an important aspect of maintaining the performance and longevity of your tires. Whether you’re a frequent off-road adventurer or simply need to keep your vehicle’s tires properly inflated, having a reliable portable compressor is essential. The VIAIR 400P and 400P Automatic are two popular options in the market. In this article, we’ll compare these two compressors and help you decide which one is better suited for your tire inflation needs.
Quick Comparison
Last update on 2024-11-01 at 02:06 / Paid links / Images from Amazon Product Advertising API
| Feature | VIAIR 400P – 40043 | VIAIR 400P – 40045 |
|---|---|---|
| Brand | VIAIR | VIAIR |
| Voltage | 12 Volts | 12 Volts |
| Recommended Uses | Tire Inflation | Tire Inflation |
| Power Source | electric-powered | Corded Electric |
| Noise Level | 74 dB | 74 dB |
| Max Working Pressure | 150 PSI | 150 PSI |
| CFM Free Flow at 0 PSI | 2.3 CFM | 2.3 CFM |
| Battery Clamps | Heavy-duty dual | Alligator |
| Fuse | 40-amp inline | 40-amp in-line |
| Automatic Function | No | Yes |
| Great for inflating tires up to 35 inches | Yes | Yes |
| Deluxe Carry Bag Included | Yes | Yes |
Design and Build Quality
Both the VIAIR 400P and 400P Automatic feature a sturdy and well-built construction. The compressors come with a deluxe carry bag that helps you keep all the components organized and protected when not in use. The VIAIR 400P Automatic features an automatic shut-off function that turns the compressor off when the desired pressure is reached, which is a handy feature to have.
Power Source
One of the key differences between the VIAIR 400P and 400P Automatic is their power source. The VIAIR 400P is an electric-powered compressor that operates on a 12-volt power supply. It has direct heavy-duty dual battery clamps with a 40-amp inline fuse that connect directly to your car battery.
The VIAIR 400P Automatic, on the other hand, is a corded electric compressor that also operates on a 12-volt power supply. It comes with alligator clamps that connect directly to your car battery and a 40-amp in-line fuse. This eliminates the need for an external power source, making it a convenient option.
Performance
When it comes to performance, both the VIAIR 400P and 400P Automatic are quite similar. They have a maximum working pressure of 150 PSI and a 33% duty cycle. The compressors have a 2.3 CFM free flow at 0 PSI, which means they can inflate tires quickly and efficiently. They’re both capable of inflating tires up to 35 inches, making them suitable for a wide range of vehicles.
Noise Level
Both the VIAIR 400P and 400P Automatic have a noise level of 74 dB, which is relatively quiet for a portable compressor. However, some users may find the noise level to be a bit high, especially if you’re inflating tires early in the morning or late at night.
Price
The VIAIR 400P and 400P Automatic are priced similarly, with the 400P Automatic being slightly more expensive. However, the difference in price is not significant and is justified by the additional features and convenience it offers.
Verdict
Choosing between the VIAIR 400P and 400P Automatic ultimately comes down to your specific needs and preferences. If you’re looking for a reliable and powerful electric-powered compressor that can connect directly to your car battery, the VIAIR 400P is a great option.
However, if you want a more convenient and hassle-free option that eliminates the need for an external power source, the VIAIR 400P Automatic is the way to go. Regardless of which one you choose, both compressors are well-built, efficient, and capable of inflating tires up to 35 inches.