--- product_id: 47947424 title: "400P-Automatic Function Portable Compressor" brand: "viair" price: "150661L" currency: ALL in_stock: true category: "Viair" url: https://albania.desertcart.com/products/47947424-400p-automatic-function-portable-compressor store_origin: AL region: Albania --- # 12V power direct from car battery 3 CFM air flow for fast inflation 150 PSI max pressure for heavy-duty tires 400P-Automatic Function Portable Compressor **Brand:** viair **Price:** 150661L **Availability:** ✅ In Stock ## Summary > 🚗 Inflate Like a Pro, Anywhere, Anytime! ## Quick Answers - **What is this?** 400P-Automatic Function Portable Compressor by viair - **How much does it cost?** 150661L with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [albania.desertcart.com](https://albania.desertcart.com/products/47947424-400p-automatic-function-portable-compressor) ## Best For - viair enthusiasts ## Why This Product - Trusted viair brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Safety First:** Equipped with a 40 amp inline fuse and automatic shut-off to protect your vehicle and compressor. - • **Effortless Power Boost:** Runs directly off your vehicle’s 12V battery for on-the-go inflation without extra gear. - • **Extended Reach Convenience:** Includes a 30-foot hose and alligator clamps for versatile, hassle-free tire inflation anywhere. - • **Heavy-Duty Pressure Mastery:** Handles up to 150 PSI, perfect for off-road, agricultural, and large 35-inch tires. - • **Rapid Inflation Performance:** Delivers 3 cubic feet per minute air flow to get your tires ready faster and back on the road. ## Overview The VIAIR 400P is a portable 12V compressor designed for professional-grade tire inflation, delivering up to 150 PSI with a 3 CFM air flow. Powered directly from your vehicle’s battery, it features a 30-foot hose, automatic shut-off, and safety fuse, making it ideal for off-road and agricultural tires up to 35 inches. ## Description This item is designed to fit specific vehicles. Please ensure correct part fitment before purchasing this project. Contact the seller directly for additional product information and availability. ## Features - 12 VOLT 150 PSI Max Working Pressure engine must be running during use - 2 - 3CFM Free Flow 0 PSI - Powered direct to the car battery with alligator clamps comes with a 40 amp inline fuse - Great for inflating tires up to 35inches on offroad and agricultural vehicles ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000X9B32M | | Air Flow Capacity | 3 Cubic Feet Per Minute | | Best Sellers Rank | 552,409 in Automotive ( See Top 100 in Automotive ) 114 in Car Catalytic Converters | | Brand | VIAIR | | Capacity | 2.3 cubic feet | | Customer Reviews | 4.8 4.8 out of 5 stars (1,241) | | Global Trade Identification Number | 00818114004056 | | Hose Length | 30 Feet | | Included Components | alligator clamps, 40 amp inline fuse | | Item Weight | 4.85 kg | | Manufacturer | VIAIR | | Maximum Pressure | 150 Pound per Square Inch | | Model Name | 40045 | | Model Number | 40045 | | Number of Items | 1 | | Part Number | 40045 | | Power source | Battery Powered | | Recommended Uses For Product | Tire Inflation | | Sound Level | 74 Decibels | | Special Features | Automatic Shut-Off, Portable | | Style | Portable | | UPC | 818114004056 | | Unit Count | 1.0 count | | Voltage | 12 Volts | ## Product Details - **Brand:** VIAIR - **Noise level:** 74 Decibels - **Power source:** Battery Powered - **Recommended uses for product:** Tire Inflation - **Voltage:** 12 Volts ## Images ![400P-Automatic Function Portable Compressor - Image 1](https://m.media-amazon.com/images/I/61TYHRCHPML.jpg) ## Questions & Answers **Q: Can this unit be used with a normal electric outlet or do I need to buy an ac/dc convertor when I want to use it in the garage without a battery?** A: This unit is strictly a 12 volt DC powered compressor. If you wish to use this on house current, you will need to use a 12 volt DC power supply which could handle the required amperage. I would suggest a small car or lawn mower battery of at least 100 ampere capacity. Put a trickle charger on it and you would good to go. Most of these battery powered compressors will draw considerable current during operation and they will get hot so be sure to take care when operating and keep the compressor clear of any combustible items. **Q: What does the “automatic” refer to?** A: According to a customer Service rep at Viair, the 440P-auto does NOT let the user set a desired pressure and then automatically shut off when the tire reaches that pressure. All it does is shut off when it meets the compressors max rated pressure. Perhaps the service rep did not know what he was talking about, but if that's all it does, the feature is just about useless: If you pump a typical tire up to 150 PSI, you most likely have already damaged the tire. **Q: What is automatic about it? does it shut off a a set psi? i want all my tires at 32** A: Hello, The automatic feature is not a "set it and forget it" type. You will still have to manually control the pressure for each tire. Our portable compressors with the automatic feature really helps when moving from tire to tire, and when checking tire pressure in the middle of a tire fill. Non automatic compressors must be turned off between tire fills, and anytime you want to check tire pressure. That means you'll be running back and forth to the compressor turning the unit on and off. The automatic feature will save you time & effort to get tires inflated quickly. Thanks, VIAIR Corp 949-585-0011 **Q: Must you continuously hold the lever on the inflation gun to inflate a tire? Seems like that would be very tiresome to do anything but add a few lbs.** A: It doesn’t take that long to fill em. I’d rather hold the chuck in one hand and and a beer in the other than get distracted and forget it. The original filler clip fell off the stem a lot and made it a 2 hand job so I got another one at Home Depot for 20 bucks. I carry regular chucks and lots of other spare parts like valve stems and covers. When I air down I pull the stems right out. When I’m filling I have a small fold up stool to sit on (or my cooler)and a digital gauge. I always have extra valve covers too. Most of the stuff Fits in a pill bottle. I carry an extra 25’ hose in case. Happy trails. ## Frequently Bought Together - VIAIR 400P/40045 Automatic Portable Compressor, Tire Inflator Kit, Air Compressor for Truck, Jeep, SUV, and Car Tires, Portable Air Pump Kit, Car Accessories, 33% Duty Cycle, 150 PSI/2.30 CFM - ARB ARB505 Deflator Kit 10-60 PSI Tire Pressure Gauge Rapid Air Down Offroad Kit With Recovery Gear Pouch (PSI) - ARB 10000011 Speedy Seal 2 - Universal Heavy Duty Tire Repair Kit For Car, Truck, RV, Jeep, ATV, Motorcycle, Tractor, Trailer. Flat Tire Puncture Repair Kit Fix Punctures and Plug Flats 50 String Plug --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://albania.desertcart.com/products/47947424-400p-automatic-function-portable-compressor](https://albania.desertcart.com/products/47947424-400p-automatic-function-portable-compressor) --- *Product available on Desertcart Albania* *Store origin: AL* *Last updated: 2026-11-15*