Lexus RX Front Suspension Strut: Specs, Fitment & Common Faults
A genuinely honest, UK-based account, documented as "Lexus Admits Front Suspension Noise": a dealer took nearly three months without resolving a knock noticed immediately after purchase — plus an alarming discovery of a missing cotter pin during an unrelated overnight test drive.
Illustration for editorial purposes
Opens live listings in a new tab.
Lexus RX Front Suspension Strut: OEM Part Number
| Petrol/non-hybrid, right | Genuinely a different part number from the left-side strut, and from the hybrid version below — confirm powertrain and side before ordering |
|---|---|
| Petrol/non-hybrid, left | A genuinely different reference from the right-side strut above |
| Hybrid, right/left | Lexus's own parts catalogue lists hybrid struts as genuinely separate references from non-hybrid, reflecting the different weight distribution and load profile of the hybrid drivetrain |
| F Sport strut, where fitted | A genuinely different, stiffer strut from standard trims — not interchangeable even though the mounting points look similar |
Lexus RX Front Suspension Strut: The System That Quietly Does All the Work
On the Lexus RX, these components absorb every pothole, bump and cornering force before any of it reaches the cabin, which is why deterioration here rarely announces itself with one obvious symptom. Working through it methodically finds the actual cause faster than guessing ever will.
Lexus RX Front Suspension Strut: What It Does
The Lexus RX's front strut does two jobs in one unit — damping the suspension's movement and providing the coil spring's mounting point. Wear here shows up as excessive bounce after bumps rather than a quick settle, and left long enough, uneven tyre wear tends to follow.
Opens live listings in a new tab.
A Genuinely Honest, UK-Based Real Account Worth Knowing — Lexus RX Front Suspension
If you're facing a knocking noise from the front suspension, this is genuinely worth knowing: one documented UK case, discussed under the thread title "Lexus Admits Front Suspension Noise," described noticing exactly this knocking noise over small bumps and potholes at low speed immediately after buying the car, with the dealer taking nearly three months without properly resolving it. It's genuinely worth knowing this issue has been documented and discussed at length by UK owners, worth referencing similar documented cases if a dealer seems slow to properly investigate a similar noise.
It's also genuinely worth knowing a genuinely alarming, honest account worth being aware of: one documented case saw a car left with a dealer for an entirely unrelated hesitation issue, with the mechanics happening to drive it overnight as part of their investigation and noticing excessive front suspension noise — this led to discovering a missing cotter pin, a loose ball joint, and a loose bolt securing the bottom of the strut to the lower control arm, none of which had been the original complaint. It's worth knowing this kind of genuinely dangerous, loose fastener issue can develop without obvious warning, and worth having a full suspension check done periodically rather than only investigating when a specific noise prompts it. On air suspension-equipped variants specifically, it's also worth knowing that front suspension noise often stems from a genuinely different cause entirely — worn air springs or a failing air compressor — rather than the conventional strut and ball joint issues discussed above.
Lexus RX Front Suspension Strut: Warning Signs, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Front Suspension Strut Guide for symptoms of worn bushings and ball joints, confirming fitment against your VIN, and rubber vs polyurethane guidance.
More Lexus Front Suspension Strut
The same part, covered across other Lexus models.