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Lexus TX550h+ Air Strut Sets
Lexus Tx550H+ Air strut sets
Air strut sets for your Lexus Tx550H+ start at low prices and AutoBuffy stocks multiple options from top OE-quality brands. An air strut combines an air spring and shock absorber into one unit, controlling ride height and damping simultaneously. When air struts fail, the suspension loses the ability to maintain proper ride height, causing corner sag, a harsh ride, and compressor overload that can destroy related components.
Signs your Lexus Tx550H+ needs new air struts
- One or more corners of the vehicle sit noticeably lower than the others, especially after the car has sat overnight
- The compressor runs continuously or cycles on and off repeatedly trying to maintain ride height
- A hissing or audible air leak near a wheel well when the suspension is loaded or the ignition is on
- Ride quality has become harsh, bouncy, or unusually stiff, particularly over small road imperfections
- A suspension fault, ride height sensor error, or air suspension warning light appears on the dashboard
- The vehicle nose-dives heavily under braking or squats excessively during acceleration
Which air strut set should you buy for your Lexus Tx550H+?
The most important decision is whether to replace with OEM-style air struts or convert to a passive coilover system. If you want to preserve the original air suspension behavior and any electronically controlled damping, a direct-fit air strut replacement is the correct choice. If long-term reliability and lower maintenance cost matter more than ride character, a conversion kit is worth considering.
OEM-Equivalent Air Strut (remanufactured)
Best for
Owners who want factory ride quality restored at a lower cost than dealer parts
What you get
Refurbished air bladder and strut body, retains original ride height control and compressor compatibility
New Aftermarket Air Strut
Best for
Owners wanting a brand-new unit with a full warranty and predictable long-term lifespan
What you get
Fresh air bladder, new shock internals, and full strut assembly ready to install without core return
Adjustable/Performance Air Strut
Best for
Enthusiasts who want tunable damping alongside air spring function
What you get
Multi-setting damping adjustment plus air spring, improves handling while keeping the air suspension system intact
Air-to-Coil Conversion Strut
Best for
Owners who want to eliminate air suspension complexity entirely
What you get
Standard coilover strut and spring replacing the air unit; removes compressor dependency but changes ride character and may disable related electronic features
| Option | Best for | What you get |
|---|---|---|
| OEM-Equivalent Air Strut (remanufactured) | Owners who want factory ride quality restored at a lower cost than dealer parts | Refurbished air bladder and strut body, retains original ride height control and compressor compatibility |
| New Aftermarket Air Strut | Owners wanting a brand-new unit with a full warranty and predictable long-term lifespan | Fresh air bladder, new shock internals, and full strut assembly ready to install without core return |
| Adjustable/Performance Air Strut | Enthusiasts who want tunable damping alongside air spring function | Multi-setting damping adjustment plus air spring, improves handling while keeping the air suspension system intact |
| Air-to-Coil Conversion Strut | Owners who want to eliminate air suspension complexity entirely | Standard coilover strut and spring replacing the air unit; removes compressor dependency but changes ride character and may disable related electronic features |
Replacing air struts on a Lexus Tx550H+
Advanced⏱ 3–5 hours for a full setFloor jack and jack standsImpact wrench or breaker bar with socket setTrim removal tools for interior or wheel well panelsAir line disconnect tool (if OEM quick-connect fittings are present)Scan tool capable of suspension system reset (for ride height recalibration)
Replacing air struts requires safely supporting the vehicle, depressurizing the air suspension system before disconnecting any air lines, and carefully transferring electrical connectors and ride height sensor linkages to the new unit. The air line fittings must be fully seated and leak-tested after installation. Because many vehicles require a ride height calibration reset through a scan tool, this job is best suited to experienced DIYers or professional technicians.
Frequently asked questions
How much does it cost to replace air struts on a Lexus Tx550H+?
Parts alone start at low prices for a set at AutoBuffy. A full set of four air struts is the most common replacement scenario. Adding professional labor, which typically runs one to three hours per corner at a shop, brings the total installed cost significantly higher, making DIY replacement a worthwhile option for intermediate-level mechanics.
Can I drive my Lexus Tx550H+ with a failed air strut?
You can move the vehicle short distances, but driving on a failed air strut is not safe or advisable. The affected corner will ride on a collapsed or overloaded strut, degrading steering response and braking stability. Continued driving also forces the compressor to run constantly, which will burn it out and add to your repair bill.
Should I replace all four air struts at once on my Lexus Tx550H+?
Replacing the full set at the same time is strongly recommended. Air struts on the same vehicle age at similar rates, and a single failed unit usually means the others are close behind. Mismatched strut conditions create uneven ride height and handling imbalance. Buying a set also reduces overall labor cost compared to doing corners individually.
How long do air struts last on a Lexus Tx550H+?
Air struts typically last somewhere between 80,000 and 150,000 miles, though lifespan varies considerably based on climate, road conditions, and how often the vehicle carries heavy loads. Cold climates accelerate rubber air bladder degradation. Vehicles that sit for extended periods without being driven can also develop bladder cracks from lack of flex.
Will replacing air struts fix my Lexus Tx550H+'s compressor problems?
If the compressor failure was caused by overwork from a leaking strut, replacing the struts may resolve the root cause, but a compressor that has already burned out will need separate replacement. Always inspect and test the compressor and height sensors after installing new air struts to confirm the whole system is functioning correctly.
Do I need to recalibrate ride height sensors after installing air struts on my Lexus Tx550H+?
In most cases, yes. Height sensors should be inspected and the suspension system recalibrated or reset after new air struts are installed to ensure the compressor targets the correct ride height. Some vehicles require a scan tool to perform this reset. Skipping this step can cause the compressor to over-inflate the new struts or trigger fault codes.