Parts for your 2007 Lexus Is-Steering bushes

2007 Lexus IS steering bushes — yes, they’re used and worth a look

Based on Lexus technical literature for the XE20 platform (IS250/IS350) — including the Lexus New Car Features, the factory Repair Manual, and Toyota’s Electronic Parts Catalogue — the 2007 Lexus IS uses a rack‑and‑pinion steering assembly mounted to the front subframe with rubber cushions (steering rack bushes). So steering bushes are relevant on this model.

On a 2007 IS, the steering bushes secure the rack while isolating vibration and road noise. Their job is simple but critical: keep the rack precisely located for sharp on‑centre feel, stop unwanted movement under load, and filter out harshness that would otherwise make its way through the wheel. Over time, heat, age, and oil contamination can soften or crack the rubber, and that’s when owners start to notice a dull clunk over sharp bumps, a little knock when rocking the wheel at standstill, or a slightly vague feel when changing lanes.

There’s no fixed replacement interval, but as a servicing habit it pays to inspect them around 100,000–150,000 km or whenever the steering feels loose. A quick driveway check can be telling: with the car safely raised and wheels chocked, have someone gently saw the steering left‑right while watching the rack — any visible rack shift in the mounts points to tired bushes. Look for perished rubber, splits, or signs of oil soak. Note that the IS uses electric power steering, so there’s no power‑steering fluid to leak, but engine oil or road grime can still degrade the rubber over time.

When replacement’s due, owners can choose:

• Genuine‑style rubber bushes for factory feel and the best NVH control.
• Quality polyurethane bushes for a firmer, more direct response, with a slight increase in vibration on rough roads.

Fitting commonly involves supporting or slightly lowering the front subframe to access the rack mounts. Mark positions, replace bushes one side at a time, and torque fasteners with the vehicle at normal ride height. Because the rack position is disturbed, a wheel alignment is recommended afterwards. If any play remains, also check inner tie rods and outer tie rod ends while you’re there.

For owners in Australia and New Zealand, where coarse‑chip surfaces and long distances are normal, fresh steering bushes can make the IS feel tighter and more confident without spoiling its refined character.

Popular questions about 2007 Lexus IS steering bushes

Do 2007 Lexus IS models actually have steering rack bushes?
Yes. Lexus factory documentation for the XE20 IS250/IS350 shows a rack‑and‑pinion mounted to the front subframe via rubber cushions. Those cushions are the steering rack bushes and they’re serviceable.

How long do the steering bushes last and when should they be replaced?
Many last well beyond 120,000 km, but heat, rough roads and age can accelerate wear. Replace when there’s clunking over bumps, a knock when rocking the wheel, or visible cracking/softness. Inspection at major services is a smart move.

Should an owner choose OEM rubber or polyurethane bushes?
OEM‑style rubber preserves the IS’s refined NVH and suits daily driving. Polyurethane sharpens steering response and durability, handy for spirited use, but can introduce a touch more vibration on coarse surfaces.