Reviewed by Andrew, 4WD Suspension fitment team
Dobinsons rear leaf springs for the Isuzu D-Max 2012-06/2020 come in load-rated packs so you can match the spring to what actually sits on the tray or in the tub, instead of guessing. Genuine Dobinsons U-bolt kits, bush kits and greasable shackles & pins can be added above to complete the install in one order. Sold as a matched pair at Dobinsons RRP, in stock in Australia.
Browse all compatible suspension parts for your Isuzu D-Max 2012-06/2020 using our parts finder.
These springs are the core of a 2 inch or 3 inch lift kit for the D-Max 2012-06/2020 — pair them with the matching dampers so the ride height and damping work together: Dobinsons front coil springs for the D-Max 2012-06/2020; Dobinsons Nitro Gas front shocks for the D-Max 2012-06/2020; Dobinsons Nitro Gas rear shocks for the D-Max 2012-06/2020; Dobinsons IMS rear shocks for the D-Max 2012-06/2020. Every part is load-rated, pair-priced at Dobinsons RRP and dispatched from Australian stock.
Last updated: 10 September 2026
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Isuzu | D-Max | TFS85 / TFR85 | 2012 - 06/2020 | 3.0L 4JJ1 Turbo Diesel |
Note: This listing suits the 2012 to 06/2020 D-Max. The 2008-2012 and 07/2020-on models use different parts.
Not sure if this fits your vehicle? Contact our suspension experts or check our FAQ page.
| Part Number | Lift | Configuration |
|---|---|---|
| L21-140-R | 2" Lift | 3 + 3 Leaves | Medium Duty | Up to 100Kg |
| L21-141-R | 2" Lift | 4 + 3 Leaves | Heavy Duty | 250Kg (Recommended) |
| L21-142-R | 2" Lift | 5 + 3 Leaves | Super Heavy Duty | 450Kg |
| L21-182-RP | 2" Lift | 2 + 1 Leaves (Parabolic) | Comfort Option | Up to 70Kg |
| L21-183-R | 3" Lift | 2 + 1 Leaves (Parabolic) | Comfort Option | Up to 70Kg |
| L21-8201-R | 2" Lift | 3 + 2 Leaves | Up to 150Kg |
| L21-8202-R | 2" Lift | 4 + 2 Leaves | 350Kg |
| Add-On | Price |
|---|---|
| Greasable shackles & pins | + $199.00 |
| U-bolt kits | + $80.00 |
| Full spring & shackle bush kit | + $99.00 |
Rear leaf springs are a bolt-on job for an experienced DIY mechanic with a hoist and routine work for any suspension workshop. A wheel alignment is required afterwards because ride height changes front geometry. Replacing U-bolts and bushes at the same time is strongly recommended — the originals are stretched to yield on installation and old bushes cause squeaks and premature wear. Both are available as add-ons above.
Dobinsons has been designing and manufacturing 4WD suspension in Australia for decades, with springs wound and dampers valved for local loads, corrugations and touring distances rather than adapted from an overseas market spec. Every part is backed by a Dobinsons manufacturer warranty. View the full Dobinsons range to match the rest of your build.
Isuzu D-Max 2012-06/2020 owners carrying a constant rear load: trays and toolboxes, canopies, drawers and long-range tanks, or towing with meaningful ball weight. If your load varies trip to trip, airbag helper kits add adjustability alongside the leaf pack.
New to D-Max suspension? Read our guide to common D-Max suspension problems and how to fix them.
| Specification | Detail |
|---|---|
| Brand | Dobinsons |
| Type | Rear leaf springs |
| Position | Rear axle |
| Sold as | Pair (both sides) |
| Vehicle | Isuzu D-Max 2012-06/2020 |
| Lift options | 2" Lift, 3" Lift |
| Load ratings | Heavy Duty, Medium Duty, Super Heavy Duty, Up to 70 kg |
| Part numbers | L21-140-R, L21-141-R, L21-142-R, L21-182-RP, L21-183-R |
| Fitting hardware | New U-bolts recommended; bush and shackle kits available as options |
Load ratings refer to permanent extra weight over the axle. Springs do not change the vehicle's GVM or towing capacity.
Yes — these Dobinsons leaf packs are built for the Isuzu D-Max 2012-06/2020 rear axle and bolt to the factory mounts. This listing suits the 2012 to 06/2020 D-Max. The 2008-2012 and 07/2020-on models use different parts.
Pick based on the weight that sits on the rear axle permanently — tray or canopy, drawers, water, dual battery, plus towball weight. Aim to sit in the middle of the rated range rather than at the top. Lightly loaded vehicles usually ride better on a medium duty or parabolic pack.
The lift for each pack is shown in the dropdown and the options table. Final height depends on existing spring sag and the constant load carried, and new springs settle slightly over the first 500km.
New U-bolts are strongly recommended with any leaf spring change because the originals are stretched to yield when first installed. Fresh bushes and greasable shackles prevent squeaks and premature wear. All three are optional add-ons above so you can order everything together.
Yes. Choose the 2" lift option on this page and pair it with the matching Dobinsons dampers linked above — springs set the lift height and load rating, and the matched shocks control it. The same approach with 3" options builds a 3 inch lift kit for the D-Max 2012-06/2020.
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