Parts for your 2020 Isuzu D-max-Steering bushes

2020 Isuzu D‑MAX Steering Bushes: what they do and when to replace them

Based on technical sources, steering bushes are indeed used on the 2020 Isuzu D‑MAX. The Isuzu workshop literature for the 2020 model’s electric rack‑and‑pinion steering specifies steering gear mounting insulators (bushes) between the rack housing and crossmember, and the genuine parts catalogue lists these insulators as serviceable items. Leading aftermarket catalogues for 8/2020‑on D‑MAX models also offer replacement steering rack mounting bushes, confirming fitment on this platform.

On this D‑MAX, the steering bushes cushion and locate the steering rack on the front subframe. They soak up vibration, help keep the rack centred under load, and stop metal‑to‑metal contact. When they’re healthy, the ute tracks straight, the wheel feels direct, and there’s less kickback through corrugations and potholes. As they wear, the rack can shift slightly, which shows up as vague steering, a clunk on turn‑in, shimmy over bumps, or uneven tyre wear. On rough rural roads or with heavy front accessories (barwork, winch), they can age faster.

Service advisors usually recommend a quick look at every scheduled service. A torch and pry bar check for cracking, deformation, oil swelling, or excess movement is often enough. There’s no fixed replacement interval—change them when there’s play, cracks, or perishing, or after a front‑end knock.

Replacement is straightforward for a trained tech: support the rack, remove the through‑bolts, swap the bushes (keeping orientation marks aligned), and torque the hardware with the vehicle at normal ride height. If the rack or crossmember has been loosened, a wheel alignment is good practice, especially to verify toe. Many owners stick with genuine rubber for OE feel and isolation, others choose reputable polyurethane options for sharper response and better durability off‑road. Either way, avoid cheap no‑name kits—poor durometer or moulding can add noise or wear out quickly.

Tips they’ll share at the counter:

• Inspect more often if the ute tows, works on corrugations, or runs bigger tyres.
• Any steering clunk over speed bumps is a prompt to check bushes before chasing ball joints or tie‑rods.
• Torque specs matter—over‑tightening crushes the bush and shortens its life.

Look after the steering bushes and the D‑MAX keeps that planted, confident feel Aussies and Kiwis expect, whether it’s the weekday commute or a weekend on the beach tracks.

FAQs

Does the 2020 D‑MAX have an idler arm or just steering rack bushes?
It runs a rack‑and‑pinion with electric assist, so there’s no idler arm. The steering rack is mounted to the crossmember using bushes (insulators) that control movement and vibration.

How often should the steering rack bushes be replaced?
There’s no set kilometre limit. Have them inspected at regular services, and replace if there’s cracking, oil swelling, or noticeable rack movement. Utes that see heavy loads or corrugations may need them sooner.

Do I need a wheel alignment after replacing the bushes?
If the rack or subframe has been loosened or shifted, get an alignment to confirm toe and steering wheel centre. It’s inexpensive insurance against uneven tyre wear.