If your vehicle is equipped with factory air suspension, you already know the comfort and load-leveling benefits it provides. But when components start to fail—leaking air springs, noisy compressors, or sagging corners—you face a choice: replace with expensive OEM parts or explore aftermarket options. Arnott air suspension parts have become a go-to for many owners because they combine quality, affordability, and engineering that often improves on the original design. This guide covers what Arnott offers, how their parts compare to OEM, and how to select the right components for your vehicle.
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Arnott Compatible with A-2642 Air Spring
Why Choose Arnott Air Suspension Parts?
Arnott is a well-known aftermarket manufacturer specializing in air suspension components. Unlike generic replacements that may use inferior materials, Arnott focuses on durability and performance. Their parts often feature redesigned air springs with stronger rubber compounds, improved piston rings, and upgraded solenoid valves. Many Arnott assemblies are built using new OEM-grade components, not just reconditioned parts. This approach gives you a cost-effective alternative that can last as long or longer than the original equipment.
Common Failure Points Addressed
Air suspension systems typically fail at the air springs (also called air bags or air struts) and the compressor. Arnott targets these weak points. For example, their air springs use multi-ply rubber that resists cracking and leaks better than some OEM versions. The company also includes new mounting hardware and air fittings, so you don’t have to reuse old parts that might cause future issues.
Key Arnott Product Lines
Arnott offers several product lines tailored to different needs:
Arnott OE (Original Equipment Replacement)
These are direct replacements for the original air struts and compressors. They match the factory ride height, damping characteristics, and electronic interfaces. If you want a plug-and-play solution that maintains the original ride quality without modifications, the OE line is the right choice. They come fully assembled with new air springs, shocks, and electrical connections.
Arnott Premier (Performance Upgrade)
For those who want improved handling or a slightly firmer ride, the Premier line uses upgraded internal valving and heavier-duty components. These are still direct replacements but offer better control in corners and reduced body roll. They are especially popular on SUVs and luxury sedans where drivers want less float without sacrificing comfort.
Arnott Kompressor (Compressor Units)
Arnott also manufactures replacement compressors and dryer cartridges. Their compressors use higher-quality pistons and motors that run cooler and deliver consistent air pressure. Many include built-in thermal protection to prevent overheating, a common issue with OEM units.
Specialty Kits (e.g., Conversion Kits)
For vehicles where air suspension is being removed or swapped, Arnott offers conversion kits that replace air springs with conventional coil springs. This is an option if you want to eliminate the complexity of air systems, but it changes the ride characteristics. Conversion kits are less common but available for certain models.
Compatibility and Fitment
Arnott parts are vehicle-specific. They cover a wide range of European and domestic makes, including BMW, Mercedes-Benz, Audi, Range Rover, Lexus, Ford, and more. Before purchasing, you need to confirm your vehicle’s year, model, and whether it has rear air suspension only or a full four-corner system. Arnott’s website and many retailers have fitment guides. A common mistake is assuming all air struts are the same; even within the same model year, different trim levels may use different suspension components.
How to Identify Your Part
To ensure compatibility, check the original part number on your current air strut or compressor. Arnott often cross-references these numbers on their product pages. If you can’t find the number, note your VIN and suspension type (e.g., “rear air suspension” or “airmatic”). Arnott customer support can help confirm fitment if needed.
Installation Considerations
Installing Arnott air suspension parts is similar to installing OEM replacements, but there are a few nuances:
Tools and Safety
Air suspension systems are under pressure. Even if the system is turned off, residual pressure may remain in the lines. Always relieve pressure by following manufacturer procedures. You’ll need basic hand tools, a jack, jack stands, and possibly a spring compressor if you’re disassembling struts. Work on a level surface.
Calibration After Installation
Many modern vehicles require calibration or recalibration of the air suspension control module after replacing parts. This may involve driving the vehicle or using a diagnostic tool to re-learn ride heights. Some Arnott kits include instructions for this, but you may need a professional scan tool or a trip to a shop. Failure to recalibrate can cause warning lights or improper ride height.
Air Line Connection
Arnott parts typically use push-to-connect fittings that are straightforward. However, if your original lines have corrosion or are cut too short, you might need to replace a section of air line. Arnott often includes extra line or adapters, but check the product description.
Cost vs. OEM
OEM air suspension parts are notoriously expensive. A single factory air strut can cost $800–$1,500 or more. Arnott alternatives typically range from $300 to $700 per strut, depending on the vehicle and line. Compressors are similarly priced at a discount compared to OEM. The savings are significant, especially when replacing multiple corners.
What About Longevity?
Arnott claims their parts are built to meet or exceed OEM durability. While individual experiences vary, many owners report 5–10 years of service from Arnott air springs in normal driving conditions. The key is proper installation and avoiding off-road abuse or overloading. Arnott also offers a limited lifetime warranty on many of their products, which adds peace of mind.
Final Recommendation
For most drivers, Arnott air suspension parts provide the best balance of cost, quality, and performance. If you want to keep your vehicle’s original ride feel and avoid the high price of dealer parts, the Arnott OE line is the clear choice. If you’re looking for a slight upgrade in handling without harshness, consider the Premier line. Always confirm fitment and consider professional installation unless you have experience with air suspension systems. While Arnott parts are not the cheapest aftermarket option, they avoid the risks of unbranded budget parts that may fail quickly. For a reliable fix that doesn’t break the bank, Arnott is a solid investment.