The Bilstein B6 Long Travel rear shock is purpose-built for the Isuzu D-Max RG (2020-On) running 0-3" of lift, using a monotube gas-pressure design with a larger bore body and extended shaft travel to control rear-end movement under load. Digressive piston valving gives firm damping on big hits and a smoother ride on the daily commute, while the extra travel keeps the shock working through articulation instead of topping out. Pair it with our leaf spring range for a matched rear end setup. In stock in Australia now, backed by Bilstein's manufacturer warranty and fitment support from our team.
Browse all compatible suspension parts for your B6 Long Travel Rear Shock Isuzu D-Max using our parts finder.
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Isuzu | D-Max | RG (SX, LS-M, LS-U, LS-T, X-Terrain) | 2020-On | 3.0L 4JJ3-TCX Turbo Diesel |
Not sure if this fits your vehicle? Contact our suspension experts or check our FAQ page.
Because this listing is for the rear shock only, rear leaf spring rate should be matched to what you're carrying constantly, not just the shock. Heavier constant loads such as a steel tray, canopy, dual battery tray, long-range fuel tank or slide-on camper need a firmer rear leaf pack; unladen touring set-ups can stay closer to factory rate. Check our leaf spring range for load-rated options that pair with this shock.
Fitting a rear shock is a straightforward job for an experienced DIYer with basic hand tools, though we recommend a qualified suspension fitter if you're not confident with axle work. A wheel alignment is mandatory after any suspension change, including a shock-only swap, to confirm ride height and axle geometry are within spec. Allow a 500km settling-in period for the seals and bushes to bed in before final alignment checks. If you're also lifting the front, pair this with upgraded control arms to correct front-end geometry at the new ride height.
Bilstein has built monotube gas shocks for OEM and aftermarket 4WD applications for decades, and the B6 range is tuned for each specific vehicle platform rather than sold as a one-size-fits-all unit. Every B6 shock carries a manufacturer warranty and is backed by our Australian fitment support team who can confirm correct part numbers for your RG build. Tradespeople and tourers running the D-Max RG rely on the B6 range for consistent damping under repeated load cycles. View the full Bilstein range for matching front shocks and springs.
This shock suits D-Max RG owners running a 0-3" lift who carry regular rear loads — tradies with a tray or canopy, tourers with a camper or caravan tow ball weight, and daily drivers wanting firmer rear control without a full leaf spring change. If your rear load varies a lot trip to trip, also look at our airbag suspension options to fine-tune ride height under variable payload.
In stock now at 4WD Suspension Australia with fast dispatch from local stock and fitment guidance from our team. Browse our full lift kit range to build a complete front and rear package for your D-Max RG.
New to D-MAX and MU-X suspension? Read our guide to common D-MAX and MU-X suspension problems and how to fix them.
This shock doesn't create lift on its own — it's a long travel unit designed to work correctly with 0-3" of rear lift, whichever way that lift is achieved (raised leaf springs, blocks or add-a-leaf). The extended body and shaft length stop the shock from topping out or running out of travel at that ride height. Lift height itself is set by your rear leaf spring choice, not the shock.
The kit includes 2 x Bilstein B6 Long Travel rear shock absorbers with mounting eyelet bushings, washers and retaining pins. Rear leaf springs, U-bolts and control arms are not included and are sold separately. Full fitment and torque details are supplied with the shocks, and our team can talk you through any hardware you'll need on top.
Yes. The monotube gas design and digressive piston are suited to controlling rear-end movement under a loaded tow ball or trailer weight without excessive heat build-up. For heavier constant tow loads, we'd also recommend checking your rear leaf spring rating is matched to the weight you're carrying, since the spring — not the shock — carries the static load.
A rear shock swap on its own doesn't require control arm changes, since control arms affect front-end geometry. If you're also lifting the front of your D-Max RG, upgraded control arms help correct front castor and CV angles at the new ride height. Our team can advise whether your specific lift height needs this on the front axle.
Yes, a wheel alignment is mandatory after fitting these rear shocks, even on a shock-only swap, to confirm ride height and axle geometry are correct. We recommend booking the alignment after a short settling-in drive so the new shocks and bushes have started to bed in. Skipping alignment can lead to uneven tyre wear over time.
This listing covers the shock absorber only, so spring rate is a separate decision made through your rear leaf spring choice. Our leaf spring range offers different load ratings to suit unladen touring through to constant heavy tray or canopy loads. Matching spring rate to your actual constant load keeps the B6 shock working in its intended range.
Tyre clearance depends on the total lift height and wheel offset, not the rear shock alone. With 0-3" of rear lift most D-Max RG owners can run a modestly larger tyre than factory, but exact clearance depends on your wheel width, offset and whether the front is lifted to match. Speak with our fitment team with your intended tyre size before ordering to confirm clearance.
This Bilstein B6 Long Travel rear shock is covered by Bilstein's manufacturer warranty against defects in materials and workmanship. We handle warranty claims through our Australian-based team, so you're not dealing directly with an overseas supplier. Keep your invoice from 4WD Suspension as proof of purchase for any claim.
Yes. The digressive piston valving is set up to control large hits firmly while staying comfortable over small, frequent bumps like the ones you hit on a daily commute. Many D-Max RG owners run this shock as their everyday setup and only notice the firmer control when carrying a load or covering corrugated roads. It's not a track-only or off-road-only tune.
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