Lexus NX AZ10 (2014–2021) Polymann Bushing Upgrade — Restoring the Quiet Refinement Lexus Is Known For

The Lexus NX AZ10 — produced from 2014 to 2021 — is a compact luxury SUV built on Toyota's TNGA-K platform. While it shares mechanical roots with the RAV4, Lexus applies a significantly higher level of NVH (noise, vibration, harshness) tuning to set the NX apart: thicker sound insulation, more precisely calibrated suspension geometry, and suspension bushings selected specifically to deliver the quiet, composed ride Lexus owners expect. Over time and kilometres, those bushings wear — and the carefully engineered refinement starts to diminish.

PPPB 35807 — Front Lower Arm Bushing Kit: The NX AZ10's front suspension uses a MacPherson strut layout, with the lower arm as the primary link between the front wheel and the subframe. The lower arm has two bushing points: a larger rear bush that handles braking forces and sets the arm's fore-aft compliance, and a front bush that manages lateral loads and defines the pivot geometry. On a luxury SUV like the NX, these bushings are tuned with a specific compliance target — enough softness to absorb fine road texture and NVH, while remaining precise enough that steering response stays clean.

When these bushings wear, road vibration and NVH that were previously absorbed now transmit into the cabin — the characteristic Lexus quietness starts to go. The front end may knock over joints and rough surfaces, and steering response becomes less immediate. Front tyre wear can become uneven as the wheel geometry shifts under load. PPPB 35807 restores both bushing points to original specification, recovering the precise-yet-refined front-end character the NX was engineered for.

PPPB 36286 — Rear Knuckle Bushing Kit: The NX AZ10's rear suspension is a multi-link design, and the rear knuckle is the hub at which all rear suspension arms converge. The knuckle bushings are the final isolation layer between the suspension arms and the wheel assembly. On a luxury SUV, these bushings play a critical role in ride refinement — they absorb the fine vibrations and road texture that would otherwise travel up through the rear of the car into the cabin. Worn rear knuckle bushings also allow the rear wheel geometry to shift slightly under load, which can affect stability on motorway bends and cause rear tyre wear to become uneven.

A well-maintained NX AZ10 is noticeably quieter and more composed than its mainstream compact SUV rivals. The cabin stays calm over surfaces that would transmit noise and vibration into other cars. Steering inputs are answered precisely. The rear end follows the front without drama. When both Polymann bushing kits are installed — front lower arm and rear knuckle — this character is restored. The NX returns to absorbing the road rather than transmitting it, and the composure that defines the Lexus experience comes back.

4M Carcare is an authorised Polymann installer in Bandar Sri Damansara. We stock PPPB 35807 and PPPB 36286 for the Lexus NX AZ10 and carry out full front and rear installation in-house, followed by a four-wheel alignment check. A wheel alignment is required after front lower arm bushing replacement to restore correct front geometry. WhatsApp us with your NX's mileage and what you are experiencing — cabin noise over rough roads, vague steering, or rear instability — and we will advise on the right kits and give you a quote.