The Dobinsons MRA Adjustable Rear Shocks suit Isuzu D-Max 2020 onwards and use a remote reservoir monotube design with 20-stage compression and 15-stage rebound adjustment, so you can dial in damping for an unladen tray, a full canopy, or a loaded trailer. Built for vehicles running 2" raised rear suspension, they're sold as a pair with adjuster knobs and mounting hardware included. Pair them with our coil springs and leaf springs for a matched setup front and rear. In stock in Australia with manufacturer warranty and fitment support from our team.
Browse all compatible suspension parts for your Rear Shocks Isuzu D-Max 2020 On using our parts finder.
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Isuzu | D-Max | RG | 2020-ON | 1.9L & 3.0L Turbo Diesel |
Not sure if this fits your vehicle? Contact our suspension experts or check our FAQ page.
Choosing the right rear spring rate depends on what's permanently fitted to your tray or canopy before you add fuel, water and gear. A tradie carrying a steel toolbox canopy, welder and racking needs a heavier constant load rating than a tourer running a lightweight canopy and drawers. Common accessories that shift spring selection include steel bull bars, winches, canopies, water tanks, drawer systems, long-range fuel tanks and rear bar work — talk to us about your actual fitted weight before ordering springs to run alongside these shocks.
These shocks bolt into the factory mounting points, but the remote reservoir bracket and hose routing are worth having fitted by an experienced installer or a suspension shop familiar with the D-Max RG platform. Wheel alignment is required after fitting, since ride height and axle geometry change slightly with any rear suspension work. Allow a 500km bedding-in period before making final damping adjustments, as the shock oil and seals settle in. If you're upgrading the front end at the same time, our control arm upgrades help correct front geometry at a lifted height.
Dobinsons has been building 4WD suspension in Australia for decades, with shocks and springs developed and tested locally against Australian conditions rather than adapted from overseas specs. Every MRA shock is backed by a manufacturer warranty and is rebuildable, so tradespeople and long-distance tourers aren't buying a disposable part. You can view the full Dobinsons suspension range to match these rear shocks with compatible springs and front components.
These shocks suit D-Max owners who tow regularly, carry a canopy or tray load, or want adjustable damping without swapping components for different conditions. Tradespeople running fixed equipment and grey nomads towing a caravan both benefit from the load-side compression adjustment. If your rear load is more variable — swapping between empty and fully loaded — it's worth also looking at airbag suspension to manage that swing in ride height.
Our team keeps Dobinsons stock on the shelf in Australia and can walk you through spring rate and shock pairing for your exact D-Max setup before you buy. Browse our full lift kit range if you're planning a complete front and rear upgrade rather than shocks alone.
These Dobinsons MRA rear shocks are built for the Isuzu D-Max RG series, 2020 onwards, covering both the 1.9L and 3.0L turbo diesel variants. They're designed to suit a vehicle running 2" raised rear suspension, so if your D-Max is still at factory ride height the shock length may not be correct. Check your current spring height and model year against our fitment table, or contact our team with your build date before ordering.
These are shock absorbers, not lifting springs, so they don't add height on their own. They're specifically valved and sized to suit a D-Max already fitted with 2" raised rear coil or leaf springs. If you need the lift itself, pair these shocks with our leaf springs or coil options rated for your load.
You get 2 x Dobinsons MRA remote reservoir rear shock absorbers, complete with mounting brackets, reservoir hoses, external adjuster knobs and the bushes and hardware needed to bolt them in. Front shocks and rear springs are not included and are sold separately. Fitting instructions are supplied with the kit.
Yes. The 20-stage compression adjustment lets you firm up rear damping to suit a loaded trailer or caravan, then back it off for unladen driving. The remote reservoir design also helps manage heat build-up on longer tows compared to a standard twin-tube shock. For heavy or variable towing loads, ask us about matching rear spring rates to your actual ball weight.
Rear shocks alone don't require a control arm change. If you're also lifting the front end or running larger tyres, upgraded control arms can help correct front geometry and CV angles at height. For a rear-only shock upgrade like this one, factory rear control arms and links are unaffected.
Yes. Any change to rear suspension, including a shock swap on a raised vehicle, can shift axle position slightly and should be followed by a wheel alignment. This protects tyre wear and keeps the D-Max tracking straight. We recommend booking an alignment as part of the fitting job, not as an afterthought.
These shocks are sold separately from springs, so yes — you can pair them with a rear leaf or coil spring rate that matches your constant load, whether that's a bare tray, a steel canopy, or a full touring setup. Our team can talk through Dobinsons' rear spring options for the D-Max RG and recommend a rate based on what you carry day to day.
These rear shocks are matched to a vehicle already running 2" raised rear suspension, which is the height most D-Max owners use to clear a larger tyre without rubbing. Actual tyre clearance depends on your tyre size, wheel offset and whether the front end has also been raised. Confirm your intended tyre size with our team so we can check clearance for your specific setup.
These Dobinsons MRA shocks are covered by manufacturer warranty against defects in materials and workmanship. As a rebuildable monotube design, the internals can also be serviced down the track rather than the shock being replaced outright. Keep your invoice from 4WD Suspension as proof of purchase for any warranty claim.
Yes. The adjustable damping means you can set the shocks softer for everyday unladen driving and firm them up when the tray or canopy is loaded. This flexibility is one of the main reasons owners choose an adjustable shock over a fixed-valve unit for a dual-purpose ute. Most D-Max owners find a mid-range setting works well for daily commuting and light touring.
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