Air Lift SmartAir II Automatic-Leveling Compressor System for Air Helper Springs - Single Sensor

Air Lift SmartAir II Automatic-Leveling Compressor System for Air Helper Springs - Single Sensor

Item # AL25490

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Air Suspension Compressor Kit

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Shipping Weight: 7 lbs

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AL25490 - No Display Air Lift Air Suspension Compressor Kit
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  • Air Lift
  • Single Path
  • Automatic Leveling
  • 100 psi
  • No Display
Call 800-298-8924 to order Air Lift air suspension compressor kit part number AL25490 or order online at etrailer.com. Free expert support on all Air Lift products. Guaranteed Lowest Price and Fastest Shipping for Air Lift SmartAir II Automatic-Leveling Compressor System for Air Helper Springs - Single Sensor. Air Suspension Compressor Kit reviews from real customers.


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  • Reviews (8)
  • Q & A (0)
  • Videos (1)
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Air Lift Air Suspension Compressor Kit - AL25490


  • Compressor system automatically levels your vehicle using a unique non-contact magnetic height sensor, which allows the system to intelligently determine whether the air springs should be inflated or deflated
  • Automatically detects changes in the vehicle's load and will make adjustments to the air springs as needed
  • Single-path system inflates 2 air springs at the same rate and at the same time
  • Works on any roads, under any load conditions
  • Responsive and accurate to less than 1/16"
  • No air line or wiring needs to be routed into the cab of your vehicle, which eliminates drilling into the firewall
  • No gauges or controller to mess with
  • Kit comes with pre-assembled, weather-resistant wiring harness, height sensor, and 12V compact air compressor with 100 psi
  • Works with Air Lift LoadLifter 5000 Ultimate, LoadLifter 5000, and Ride Control kits
  • 2-Year limited warranty
  • 60-Day money-back guarantee

25490 AirLift Smart Air 2 Automatic Leveling Air Compressor System for Air Helper Springs - Single Sensor

Replaces 25415



AL25490 Installation InstructionsInstallation Details AL25490 Installation instructions


California residents: click here


Video of Air Lift SmartAir II Automatic-Leveling Compressor System for Air Helper Springs - Single Sensor


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Air Lift Air Suspension Compressor Kit - Automatic Leveling - AL25490

Today we're going to take a look at the Air Lift SmartAir II Automatic Leveling Compressor System for Air Helper Springs.Now this compressor system will automatically level your vehicle using a unique non-contact magnetic height sensor, which allows the system to intelligently determine whether the air springs should be inflated or deflated. And that non-contact magnetic technology will reduce the possibility of malfunction due to dirt or other road debris interfering with the contact arm.It does automatically detect changes in the vehicle's load and it will make adjustments to the air springs as needed. The SmartAir II is available in either single or dual-path models. This part number is a single-path model. The single-path allows for the inflation of both air springs at the same rate at the same time. And the dual-path version allows for the inflation of each air spring independently to different pressures depending on load.

The dual-path we also sell separately on our website. It's listed on this product page as a related product, its part number AL25491.And as I mentioned, this is the single-path system, which will inflate the two air springs at the same rate at the same time. This works on any roads, under any load conditions, and it is responsive and accurate to less than 1/16". There's no air line or wiring that needs to be routed into the cab of your vehicle, which eliminates drilling into your firewall. And there's no gauges or controllers to mess with.Kit comes with everything laid out here.

Comes with this preassembled weather resistant wiring harness with the relay. This 12V compact 100 psi air compressor, and the exhaust solenoid. The electronic height sensor with the magnet and the magnet mounting brackets. Has 20 feet of 1/4" air line. Other mounting brackets, some zip ties or cable ties to take up any slack in the wiring.

A fuse holder, electrical connectors, and of course, a nice installation guide that will go into detail on how to put all this together.This is designed to work with the Air Lift LoadLifter 5000 Ultimate, LoadLifter 5000, and the Ride Control Kits.But that should do it for the review on the Air Lift SmartAir II Automatic Leveling Compressor System for Air Helper Springs.


Customer Reviews

Air Lift SmartAir II Automatic-Leveling Compressor System for Air Helper Springs - Single Sensor - AL25490

Average Customer Rating:  4.9 out of 5 stars   (8 Customer Reviews)


- AL25490
by:

After 1 year I am happy to say it has not given a minutes worth of trouble. The truck hauls lumber and construction supplies almost daily and it just does what it is supposed to do without anyone having to do a thing. I have this same system on another truck that has been working for about 10 years now and it also has given no problems. I would not have an airbag setup without this auto leveling system. 630990



- AL25490
by:

I tow a 5th wheel camper & boat around the country in search of great fishing adventures. The Airlift is a necessity for my F-150 Ecoboost. I have met people on my travels that did not have the automatic leveling and they had regretted not getting it after seeing how my truck was self-leveling. It doesn’t matter if I am towing the camper or the boat or just running into town for groceries, my truck level is always perfect for the job at hand. If you’re towing heavy loads, the Airlift 5000 is excellent and I highly recommend the automatic “SmartAir System”. Don’t forget to order your Airlift kit with the Stainless Steel hardware option. I was able to install both kits by myself in a day. The online instructions were very helpful. 602262



- AL25490
by:

Price was good free shipping and it arrived in two days the install was not difficult 703974



- AL25490
by:

Installed on a 2018 GMC Serra 2500HD. This is a comprehensive kit, with install basically compromising three component systems. 1) compressor and the bleed down valve. These I installed on a bed bulkhead just above the front of the muffler. Drive line must be removed. see pic. 2) air bags. I think the instructions show the top mount 180 off. Watch the video, and see pics, easy to install. 3) Electrical, I started from the back with the sensor, compressor, drivers side frame rail following the stock wire loom, which i used to tie the air lift loom. Routed into the engine compartment and up to the fuse box where I used a switched misc fuse and the supplied mini blade spade adapter. passed the wire through a hole i drilled into the cowl side of the fuse lid. Lid has fuse diagram, mine was number 36. This is for the 3 amp inline fuse. Pos and Neg wires wired to battery. 4) air lines, I used the Schroeder valve bracket on the receiver hitch, air line driver side of the spare tire zip tied to frame, see pics. This took me a full nine hours to install, some wasted time trying to decipher the top mount orientation, which seems to be drawn wrong in the instructions. Watch the video online, helps a lot. I do not think that this was overly complicated, just take each system and install them and tie it all together. I had to do some adjusting on the sensor as initial 5 lbs pressure with the sensor setting caused the compressor to turn on and pumped to 11 PSI. I Just lowered the sensor till I had a pump pressure of seven PSI. Love it. 694028



- AL25490
by:

Great product if your looking for an easy way to keep your truck leveled. Like that the kit is fairly easy to install and I can hook up a trailer and the Smart Air system takes care of the rest. 598645



- AL25490
by:

e-trailer proved excellent customer support during a recent back-order. Updates were timely and I was advised that the items were now in stock and shipping. Excellent vendor...I will use again and would highly recommend them to anyone. 547025



- AL25490
by:

Product works great, instructions included were a little sketchy, and i was missing some parts, so be sure to verify package content before beginning install. cant wait to put it to the test and get my trailer hooked up. 485755



- AL25491
by:

Review from a similar Air Lift SmartAir II in Air Suspension Compressor Kit


Works as described- I have this installed on my 2500 Chevy pickup to level while towing... it maintains the level stance even while towing heavy. 599775


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Info for this part was:

Edited by:
Leah B
Video Edited:
Jeff D
Written by:
Mary E
Updated by:
Sarah W

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