AccuAir 4″ Dynamic Lift Kit for Jeep Gladiator JT Diesel — Part AA-4477
The AccuAir 4″ Dynamic Lift Kit (AA-4477) is the industry’s only fully adjustable air suspension lift system engineered specifically for the 2020–2025 Jeep Gladiator JT EcoDiesel. Unlike a traditional static lift kit that locks you into one ride height, AccuAir’s Dynamic system lets you raise, lower, and level your Gladiator on demand — from the in-cab controller or wirelessly via long-range Bluetooth 5.0 and the ePlus smartphone app.
Whether you’re clearing trail obstacles, towing at maximum rating, or parking in a low garage, this system adapts in seconds — with the rugged durability and ride quality AccuAir is known for.
[Image 1 — Main product shot] File:
accuair-aa-4477-jeep-gladiator-diesel-4-inch-dynamic-lift-kit.jpg ALT: AccuAir AA-4477 4 inch Dynamic Lift Kit for Jeep Gladiator JT Diesel with air springs, compressor and tankFull 4″ Lift, Clears 37″ Tires
The full kit provides a true 4 inches of lift and easily clears 37″ tires on 4.5″ back-spaced wheels — no cutting, drilling, or welding required. Installation is 100% bolt-on with all frame brackets, links, air lines, and mounting hardware included.
Three Preprogrammed Heights + Crawl Control
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Above 25 MPH: the system automatically defaults to the safe 4″ ride height — FMVSS 126 compliant for electronic stability control.
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Under 25 MPH (Crawl Control): raise or lower the entire Jeep ±2″, or adjust each corner independently to tackle obstacles — or level the truck perfectly for rooftop-tent camping.
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Position 1 access mode: lowers the Gladiator 1″ so family and pets can climb in easily — no low-hanging side steps needed.
[Image 2 — Height modes graphic] File:
accuair-dynamic-lift-kit-height-modes-gladiator-jt.jpg ALT: AccuAir Dynamic Lift Kit ride height positions on a lifted Jeep Gladiator JTAuto-Leveling for Towing and Payload
TruPosition height sensors constantly monitor ride height and automatically compensate for whatever you add — winch bumpers, tire carriers, rooftop tents, or a full trailer. The system eliminates the rear-end sag common with coil lift kits and preserves the Gladiator’s maximum tow rating.
On-Board Air Included
An underbody-mounted 5-gallon air tank and compressor come standard, giving you high-pressure air on the trail to inflate tires after airing down, run air tools, or fill camping gear. (Interlink: pair it with our [AccuAir Ultimate On-Board Air Compressor System AA-3838] for maximum duty cycle.)
Technical Specifications
Table
| Specification | Detail |
|---|---|
| Brand | AccuAir Suspension |
| Manufacturer Part # | AA-4477 |
| Summit Racing # | CUA-AA-4477 |
| UPC | 815710030472 |
| Fitment | 2020–2025 Jeep Gladiator JT, Diesel only (excl. Mojave) |
| Lift Height | 4.0″ (adjustable ±2″ under 25 MPH) |
| Tire Clearance | Up to 37″ on 4.5″ backspaced wheels |
| Control | Touchpad controller + Bluetooth 5.0 ePlus app |
| Sensors | TruPosition height sensors, automatic calibration |
| Compliance | FMVSS 126 |
| On-Board Air | 5-gallon underbody tank + compressor |
| Shocks / Air Springs / Lines / Brackets | All included |
| Welding Required | No — 100% bolt-on |
| Origin | Made in USA |
⚠️ Critical Fitment — Read Before Ordering
Table
| Your Gladiator | Correct Kit |
|---|---|
| JT Diesel 2020–2025 | AA-4477 (this kit) |
| JT Gas 2020–2025 | AA-4279 |
| JT Mojave | AA-5157 |
Dynamic Lift vs. Traditional Static Lift Kit
Table
| Feature | Static Coil Lift | AccuAir AA-4477 |
|---|---|---|
| Ride height | Fixed | Adjustable on demand |
| Towing load leveling | No | Automatic |
| Entry/exit | Steps required | Lowers 1″ at a button press |
| Garage clearance | Permanent issue | Lower to fit |
| Trail adjustability | None | 4-corner independent control |
| Tire inflation on trail | Separate compressor | Built-in on-board air |
Frequently Asked Questions
Will AA-4477 fit my gas-engine Gladiator? No — this kit is engineered for diesel (EcoDiesel) models only. Gas JT owners need AA-4279; Mojave owners need AA-5157.
Can I install it myself? The kit is 100% bolt-on with no cutting, drilling, or welding. Experienced DIYers can install it, though professional installation is recommended for calibration and alignment.
Does it work with 37″ tires? Yes — the 4″ lift clears 37″ tires on wheels with 4.5″ backspacing.
Will towing sag the rear end? No. Auto-leveling TruPosition sensors maintain ride height under load and preserve the maximum factory tow rating.
Recommended Internal Links (from your existing inventory)
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[AccuAir Ultimate On-Board Air Compressor System AA-3838] — upgrade air capacity
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[Off-Road & Heavy-Duty Suspension Components] — category hub
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Blog: Air Suspension vs. Coil Lift Kits: Which Is Right for Your Gladiator?
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Blog: How to Fit 37″ Tires on a Jeep Gladiator Without Rubbing
Reviews
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