Air Lift LoadController (Compact, Dual Path, Heavy Duty) 25856Air LiftOriginal price was $855.99. Current price is $619.99.In Stock
View productAsk a Question About This Product
Our in-house experts typically reply within one business day.
Our in-house experts typically reply within one business day.
Air Lift
Always the correct part
We know our products
Quality Products
Free Shipping!
Always the correct part
We know our products
Quality Products
Free Shipping!
AD-938 LS user guide.pdf
MN-750_25850_25854.pdf
AD-985-ALC-Warranty- Flyer2024.pdf
Offering quick and convenient air pressure adjustment, LoadController (Compact, Single Path, Heavy Duty) will have your vehicle back on the level in no time, eliminating the need to hunt for a gas station with an air compressor.
Offering quick and convenient air pressure adjustment, LoadController (Compact, Single Path, Heavy Duty) will have your vehicle back on the level in no time, eliminating the need to hunt for a gas station with an air compressor. LoadController allows you to control the pressures of your air springs with the touch of a button, whether parked or on the road. There's no need to worry about changes in load or road conditions -- you can make on-the-go changes from inside the cab. With an exclusive low pressure sensor that automatically activates if pressure drops to an unsafe level, you can be sure that your vehicle and load are protected, no matter what the road throws at you. The easy-to-read, user-friendly pressure gauge features both inflate and deflate buttons, allowing users to users to quickly make changes in air pressure. LoadController is a single path system, meaning that both air springs will be adjusted at the same time, to the same air pressure. The mounting pod is customizable to your preferences, with the ability to be mounted in the included mounting cup, flush mounted into the dash, or inserted into any 2 1/8 in. gauge pod. With the included, pre-assembled wiring harness, you'll be able to have your vehicle level and on the road in only a matter of hours. The heavy-duty compressor, perfect for frequent users of the system, mounts easily to the vehicle's frame and the routes the air line directly to the air springs. With the included, fully-illustrated installation manual provides clear instructions to make installation a breeze. As the leader in air suspension products for over 70 years, Air Lift is committed to delivering quality parts that last. To ensure the highest quality, longevity, and customer satisfaction, the system comes with a two-year warranty and a 60-day, no-questions-asked, money-back guarantee -- not to mention the Air Lift reputation for great customer service and technical support.
Air Lift Company has developed dependable air spring suspension products since our inception in 1949. Our original product, a rubber air spring inserted into a car’s factory coil spring, was created and patented in 1950. We’ve come a long way since 1949 and are proud to be a dedicated suspension specialist company.
Today, Air Lift load support products are sold worldwide and are engineered to fit over 540 vehicles. Our extensive product line offers air helper springs for trucks, RVs, SUVs, CUVs, and vans, as well as the most technologically advanced on-board air compressor systems for on-the-go air spring control.
Air Lift leads the industry in no-drill applications – kits that bolt onto your vehicle’s frame, speeding the installation process. Our teams work constantly to bring innovative products to you and upgrade existing products with the latest technology.
All of our efforts are spent ensuring your safety and comfort by designing, engineering, and manufacturing the highest quality suspension products. We are a family-owned business based in Lansing, Michigan, and make your family and cargo’s safety our top priority.
Experts available to answer your questions
Call 888-634-94942 Years
The Load Controller / Single is an on-board air management system for air spring kits. It includes a single analog gauge, compressor, low pressure sensor, and electrical harness. The system automatically maintains minimum air pressure in the air springs (preset to 5 PSI unless adjusted) and allows manual inflation and deflation via on/off and deflate buttons on the gauge.
The system is compatible with Air Lift LoadLifter 5000, Air Lift 1000, and Ride Control air spring applications. If adding to a LoadLifter 5000 kit, no sensor adjustment is needed. If adding to Air Lift 1000 or Ride Control kits that require a minimum of 10 PSI, the low pressure sensor must be adjusted from the factory 5 PSI setting.
Two compressor options are available: the Standard Duty Compressor (part 16060, A1) and the Heavy Duty Compressor (part 16192, A2). The kit includes one compressor. The Heavy Duty model uses a leader hose with compression fitting and filter assembly, while the Standard Duty model connects directly via barbed fitting.
The kit includes: one compressor (Standard or Heavy Duty), analog single gauge (part 25194), harness (part 26512), 25 feet of 1/4" DOT air line (part 20946), gauge mounting kit (part 25196), low pressure sensor (part 24558), grommet (part 10463), 15 amp fuse and holder, wire connectors, tee fittings, zip ties, and self-tapping screws. See the Hardware List on page 4 for complete part numbers and quantities.
Yes. Air Lift recommends that you install the air spring kit first per the instructions provided with the air spring kit. The Load Controller / Single is added to an existing air spring installation.
The compressor must be mounted in a dry, protected area on the vehicle, shielded from direct splash and excessive moisture, which can damage the compressor and cause system failure. Avoid high heat environments and do not mount under the hood. The compressor can be mounted in any position—vertical, upside down, or sideways. If mounted outside the vehicle, the intake should be snorkeled inside the vehicle and oriented so moisture can drain easily. Verify the compressor harness will reach and connect to the main harness before finalizing location.
Select a convenient mounting location with a sturdy, rigid surface; the bottom edge of the dash on either side of the steering wheel is recommended. Attach the gauge pod using the black self-tapping screws provided. The gauge mounting kit (part 25196) includes hardware for bottom or top mounting. An optional dashboard mounting bracket is also included (figure 6).
Connect the color-coded wires to the gauge harness as shown in the electrical schematic (page 5). Connect the low-pressure switch assemblies as shown in figures 2 and 9. Do not connect the power wire at this time. The wiring harness also connects the gauge to the low-pressure sensor assembly, which should be located under the dash inside the vehicle and secured with provided zip ties. Screw the ground eyelet to the firewall or other electrical ground in the cab.
Before drilling any holes into the frame or floorboard, you must check for hydraulic lines, gas lines, and electrical wires that may need to be moved aside. When attaching to the floorboard, check where screws protrude through on the inside of the vehicle; it may be necessary to trim or cover the screw tops. Use a sealer around screws to prevent elements from entering the cab area.
For Standard Duty Compressor mounting, drill 13/64" holes through the frame using the mounting brackets as a template. If the mounting area does not provide enough room to use a drill to drive in the screws, you may use a 7/16" nut driver to install the self-tapping screws after drilling.
Use the compressor as a template to drill holes and mount the compressor using the black mounting hardware that comes in the box containing the compressor. Attach the compressor ground wire to one of the mounting screws.
Push the air line onto the barbed fitting on the compressor, ensuring the air line covers all barbs. A small amount of water or lubricant and pushing with a slight circular motion will ease installation.
Remove the nut from the leader hose and install it over the air line from the check valve assembly. Push the air line from the check valve assembly into the barbed fitting on the compressor leader hose. Slide the nut over the fitting and tighten securely.
Use existing grommets in the floorboard or firewall to route the harness from the cab to the frame-mounted compressor. If a hole must be drilled, drill a 1" (25 mm) diameter hole and install the provided grommet. You may need to trim the grommet for an exact fit. Seal all grommets or holes to prevent elements from entering the cab. Do not route the wiring harness near the exhaust pipe, muffler, or catalytic converter; routing along the top of a crossmember or over a heat shield is recommended.
Drill a 1" (25 mm) diameter hole for the harness grommet. After drilling, insert the grommet and "walk" the material around the inside edge of the drilled hole. You may need to trim the grommet to get an exact fit.
With the air springs deflated, use a hose cutter to cut the air line already installed between the air springs and the inflation valves. Install the provided "T" fittings by pushing the air line into each leg of the "T" until you feel a definite "click"; each line should go in 9/16" (14 mm). Connect a single length of air line to the open leg of the "T" and route it across the chassis from the far side over the exhaust system heat shields and along the frame up to the compressor. Avoid heat sources, sharp edges, and tight bends. Route air lines from the low-pressure switch to the gauge barb.
Route the power wire to the vehicle fuse box and determine which open terminal (accessory, etc.) works only when the key is in the "on" or accessory position. The terminal should have an amperage rating higher than the 15 amp in-line fuse. Connection depends on your vehicle's fuse type: use adapter #1 for barrel type fuses, adapter #2 for standard spade type fuses, or adapter #3 for smaller spade type fuses found on many late-model vehicles. If using adapter #1 or #2, crimp a 1/4" (14-16 GA) female connector to the wire. If using adapter #3, crimp a 3/16" (14-16 GA) female connector. Connect the adapter to the "HOT" side of the fuse.
With the ignition on, the compressor will turn on and fill the system to 10 PSI (1 BAR) before shutting off. Press the on/off button to inflate both air springs and use the small deflate button to adjust the pressure. Inflate to 30 PSI / 2.06 BAR (or 20 PSI / 1.4 BAR for Air Lift 1000 kits). Check all fittings and inflation valve cores with a solution of dish soap and water in a spray bottle for leaks.
Never run the compressor longer than four minutes continuously. Allow at least five minutes for cool-down before starting the compressor again.
If the compressor runs continually or often, there is a leak in the system. Disconnect the compressor at the fuse box and test for leaks with a soapy water solution. Check all fittings and inflation valve cores.
The low pressure sensor (part 24558, 5 PSI) protects the air springs from failure resulting from low pressure in the unloaded condition. It is preset to maintain a minimum pressure of 5 PSI (0.34 BAR) in the air springs unless the setting was changed. The sensor measures the pressure in each spring and turns on the compressor if the pressure falls below the set pressure.
If adding this control system to an Air Lift LoadLifter 5000 application, no modifications to the low pressure sensor are necessary. If adding to an Air Lift 1000 or Ride Control application that requires a minimum of 10 PSI (0.7 BAR), you must adjust the low pressure sensor. Remove the rubber plug with pliers, use a hex wrench to turn the screw clockwise 4 1/4 turns, and push the rubber plug back into the top of the sensor.
No. The installation of this kit does not alter the Gross Vehicle Weight Rating (GVWR) or payload of the vehicle. You must check your vehicle's owner's manual and not exceed the maximum load listed for your vehicle.
The Load Controller / Single is compatible with Air Lift LoadLifter 5000, Air Lift 1000, and Ride Control air spring kits. It is designed to be added to an existing air spring installation. Contact Air Lift customer service at (800) 248-0892 to confirm compatibility with your specific vehicle.
Required tools include a drill (for 13/64" and 1" holes), 7/16" nut driver, hose cutter, hex wrench, pliers, wire crimper, and screwdrivers. An optional L-bracket for Standard Duty mounting requires a 1/4" bolt and nut (not supplied). Refer to the installation steps for specific tool applications.
Yes. You must drill holes for compressor mounting (13/64" for Standard Duty, or use compressor as template for Heavy Duty) and may need to drill a 1" hole for the harness grommet if existing grommets are not available. Always check for hydraulic lines, gas lines, and electrical wires before drilling.
The system uses a 15 amp in-line fuse (part 24652, ATC spade type). The vehicle fuse box terminal must have an amperage rating higher than 15 amps.
Inflate to 30 PSI / 2.06 BAR for LoadLifter 5000 and Ride Control applications, or 20 PSI / 1.4 BAR for Air Lift 1000 kits. Use the on/off button to inflate and the deflate button to adjust pressure.
Check all fittings and inflation valve cores with a solution of dish soap and water in a spray bottle for leaks. If the compressor runs continually or often, there is a leak; disconnect the compressor at the fuse box and test with soapy water solution.
A continually or frequently running compressor indicates a leak in the system. Disconnect the compressor at the fuse box and test for leaks using a soapy water solution. Check all fittings and inflation valve cores. Common leak points include air line connections to tee fittings, compressor barbed fittings, and inflation valve cores.
Verify that the power wire is connected to a fused ignition terminal that is "HOT" when the key is in the "on" or accessory position. Check that the 15 amp in-line fuse is not blown. Confirm that the low pressure sensor is properly connected and that air pressure in the springs is below the sensor's set pressure (5 PSI or 10 PSI if adjusted). Verify all wire connections are secure and color-coded correctly per the electrical schematic.
Ensure air lines are fully inserted into barbed fittings and tee union legs. For barbed fittings, the air line should cover all barbs. For tee unions, push the air line in until you feel a definite "click" and it goes in 9/16" (14 mm). If leaking persists, remove the line, apply a small amount of water or lubricant, and reinstall with a slight circular or twisting motion. Check that compression fittings on the Heavy Duty Compressor leader hose are tightened securely.
On Sale Today
Original price was $561.99. Current price is $407.99.You save $154.00 (27%)
Free Shipping
Ships free on all orders
Authorized DealerQuick Ship
In stock and ready to ship — order now!
FREE ShippingFREE SHIPPING
Estimated delivery Mon, Sep 7 - Thu, Sep 10
Order before 2 PM EST Monday–Friday for same-day processing
Guaranteed safe & secure checkout
No reviews have been added for this product.