Arnott Suspension: What It Is, How It Works, and What Drivers Should Know

If you've been researching air suspension repairs or replacements, you've likely come across the name Arnott. The company is one of the more well-known aftermarket manufacturers of air suspension components — but understanding what they make, how those parts work, and whether aftermarket air suspension is the right path for your vehicle requires knowing a bit more about how air suspension systems function in the first place.

What Is Air Suspension and Why Does It Need Replacing?

Air suspension replaces conventional coil or leaf springs with air-filled rubber bladders (called air struts or air springs) that support the vehicle's weight. A compressor pumps air into these bags to raise the vehicle, and releases air to lower it. Most systems also include a height sensor, control module, and air lines connecting the components.

Air suspension offers a smoother ride and, on many vehicles, automatic load leveling — the system adjusts to keep the vehicle level whether it's empty or loaded. You'll find it on a wide range of vehicles: luxury sedans, full-size SUVs, trucks with towing packages, and some performance cars.

The catch is durability. Air springs and compressors wear out over time. Rubber bladders crack, air lines develop leaks, and compressors burn out from working overtime to compensate for slow leaks. When the system fails, the vehicle may sag, ride rough, throw warning lights, or refuse to start moving until it levels out. Repairs are common on high-mileage vehicles — and they're not cheap.

What Arnott Makes

Arnott Industries (often stylized simply as Arnott) manufactures aftermarket air suspension parts including:

• Air strut assemblies (combined air spring and shock absorber units)
• Air springs (the rubber bladder component only)
• Compressors and compressor kits
• Remanufactured OEM-style components
• Conversion kits that replace air suspension with traditional coil spring setups

They produce parts for a broad range of makes and models — including popular platforms from Mercedes-Benz, BMW, Land Rover, Jeep, Lincoln, Cadillac, Ford, and others. Their catalog is specifically built around vehicles that came from the factory with air suspension systems.

OEM vs. Arnott Aftermarket: Understanding the Difference 🔧

When an air suspension component fails, drivers generally face three options:

Arnott positions most of its products as direct-fit replacements — meaning they're designed to install without modifying the vehicle's existing mounting points or electronics. Some of their assemblies are new construction, while others are remanufactured from cores. The distinction matters because remanufactured parts have a rebuild history, while new parts don't.

Whether aftermarket parts perform comparably to OEM over the long run is a question that varies by vehicle, part type, driving conditions, and the specific unit involved. Mechanics, forums, and owner communities often have model-specific experience worth consulting.

Arnott Conversion Kits: Trading Air for Coils

One product category Arnott is particularly known for is air-to-coil conversion kits. These replace the air suspension system entirely with conventional coil springs and passive shocks, eliminating the complexity and failure points of the air system.

Conversion kits appeal to owners who:

• Have experienced repeated air suspension failures
• Want a lower-cost long-term maintenance path
• No longer need or want active ride-height adjustment
• Plan to keep the vehicle for many more years

The trade-off is real, though. Converting from air to coil means losing automatic leveling, ride-height adjustment, and often some ride quality. On vehicles where air suspension is tied into the stability control, towing systems, or ADAS features, conversion may affect those functions or trigger persistent warning lights. Some conversions require resetting or reprogramming the vehicle's control module.

Variables That Shape the Right Decision for Any Given Owner

No two air suspension repair situations are quite the same. The factors that matter most include:

• Vehicle make, model, and year — Part availability, system complexity, and failure patterns differ significantly across platforms
• Which component failed — A failed compressor is a different repair than a cracked air spring or a leaking air line
• Mileage and overall vehicle condition — Whether a premium repair investment makes sense often depends on what else the vehicle needs
• DIY vs. professional installation — Some air suspension work is DIY-accessible; other jobs (especially on integrated luxury systems) require specialized diagnostic tools
• Your state and region — Labor rates, parts availability, and shop pricing vary considerably by location
• Warranty coverage — Arnott and other manufacturers offer warranties on their parts, but coverage terms, duration, and claim processes differ by product line

Costs for air suspension repairs can range from a few hundred dollars for a single air spring replacement to well over a thousand dollars for a compressor or full strut assembly — especially once labor is factored in. These figures shift based on vehicle type, region, and whether you're doing the work yourself.

What the Range of Outcomes Looks Like

An owner of a high-mileage Lincoln Navigator dealing with a failed rear air spring may find an Arnott replacement strut to be a cost-effective fix that restores normal function. An owner of a newer Range Rover with an integrated adaptive suspension system may find that only OEM components interact cleanly with the vehicle's electronics. Someone driving a daily-use Jeep Grand Cherokee who's had two compressors fail might find the conversion kit the most pragmatic long-term solution — while a luxury sedan owner who specifically bought the car for its ride quality might find that trade-off unacceptable.

The right answer for your vehicle depends on which component failed, how your suspension system is architected, what your mechanic finds on inspection, and what you expect from the vehicle going forward. 🚗