Reviewed by Andrew, 4WD Suspension fitment team
The Airbag Man Air Helper Kit is built for the Toyota 4Runner and Hilux Surf (1984-1997) fitted with rear leaf spring suspension, mounting between the leaf spring pack and chassis rail to add load-proportional air support. Inflate to suit the load — camper trailer, canopy full of gear, or extra passengers — and deflate for an unladen ride, without changing your standard ride height at rest. Airbag Man backs the air springs with a limited lifetime warranty, and every kit ships from Australian stock with fitment support from our team. Check all suspension parts for the 4Runner and Surf before you order.
Browse all compatible suspension parts for your Air Helper Kit Toyota 4Runner/Surf 84-97 using our parts finder.
Last updated: 9 September 2026
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Toyota | 4Runner | Leaf spring rear, 2WD & 4WD | 1984–1997 | Petrol & diesel variants |
| Toyota | Hilux Surf | Leaf spring rear, 2WD & 4WD | 1984–1997 | Petrol & diesel variants |
Not sure if this fits your vehicle? Contact our suspension experts or check our FAQ page.
This kit doesn't come in different spring rates — instead you adjust air pressure to match whatever constant load you're carrying, so there's no need to pick a firmer or softer spring for your accessory setup. Vehicles running a bullbar, winch, canopy, long-range fuel tank, camper trailer or caravan tow-ball weight will typically run more air pressure day-to-day than a lightly accessorised 4Runner or Surf. If you're unsure how much support you'll need, our team can talk through your accessory list and expected loads.
Fitting the air springs to the leaf spring pack and chassis rail is a straightforward job for an experienced DIYer with basic hand tools, or your usual suspension workshop. Because the air springs don't alter unladen ride height or steering geometry, a wheel alignment isn't mandatory purely for this installation — but it's worth checking if you're also fitting new leaf springs or other suspension components at the same time. After fitting, check all air line fittings for leaks under pressure and recheck them again after the first week of driving. If your 4Runner or Surf is also due for shock or control arm attention, our control arm range is worth a look while you're under the vehicle.
Airbag Man is an Australian air suspension brand supplying load-support kits for leaf spring and coil spring 4WDs, utes and vans. Every air spring in this kit is covered by Airbag Man's limited lifetime warranty, giving you a manufacturer-backed product rather than a generic aftermarket bag. You can view the full Airbag Man range to see helper kits and full air suspension options for other 4WD platforms.
This kit suits tradespeople running a canopy or tool load on the tray, and tourers towing a camper trailer or caravan who need to control sag without changing their unladen stance. If you're regularly at or near your 4Runner or Surf's rear axle load rating, this airbag suspension upgrade gives you a way to add support only when you need it.
In stock in Australia and dispatched from local stock, with our team on hand to confirm fitment for your specific 4Runner or Surf before you buy. Browse our full lift kit range if you're also looking at a height increase alongside load support.
| Specification | Detail |
|---|---|
| Kit type | Leaf spring air helper kit (mounts between the chassis and the leaf pack) |
| Position | Rear axle |
| Part RR4560 | up to 50 psi; operating height 5.5" - 6.5" |
| Typical fitting time | 120 minutes |
| Fitting notes (Airbag Man) | Can be used with lift Kits with up to full droop gap of 368mm, chassis rail to leaf; Easy Fit Kit |
| Kit contents | 2 x Airbag Man air springs, upper and lower brackets, mounting hardware, air line tubing, push-in fittings, 2 x inflation valves and step-by-step fitting instructions. |
| Warranty | Airbag limited lifetime manufacturer's warranty on the air springs |
Figures from Airbag Man product data. Helper kits assist the springs and do not change the vehicle's GVM or towing capacity.
This Airbag Man Air Helper Kit is built for Toyota 4Runner and Hilux Surf models from 1984 to 1997 that run rear leaf spring suspension. It's not suited to later 4Runner/Surf models with a coil spring rear end, so check which rear suspension type your vehicle has before ordering. If you're not sure, send us your rego or model details and our fitment team will confirm compatibility. We also list this kit under our leaf spring category so you can cross-check against other leaf spring components for the same vehicle.
This is a helper kit, not a lift kit, so it doesn't raise your 4Runner or Surf's ride height when unladen. The air springs sit between the leaf spring pack and chassis rail and only add support once you inflate them, which reduces sag once a load goes on rather than lifting the vehicle at rest. If you want a static height increase as well, look at our leaf spring range or full lift kit range alongside this kit. Combining raised leaf springs with this air helper kit is a common setup for heavier tourers.
The kit includes two Airbag Man rubber air springs, top mounting brackets, lower mounting plates and a U-bolt kit for the leaf spring and axle, a braided air line, a single-point inflation valve, fitting hardware and step-by-step instructions. An onboard air compressor and pressure gauge are not included and are sold separately if you want to inflate on the move. Everything needed to physically mount the air springs to your 4Runner or Surf's leaf spring setup is in the box.
Yes, this is one of the main reasons customers fit it — to control rear-end sag when towing a camper trailer or caravan with tow-ball weight pressing down on the rear leaf springs. You increase air pressure to suit the tow-ball load and drop it back off once you unhitch. It won't increase your vehicle's rated towing capacity, so always work within your 4Runner or Surf's GVM and towing figures listed on the compliance plate.
No, control arm upgrades aren't required for this kit since it's a rear leaf spring air helper and doesn't affect front suspension geometry. If your 4Runner or Surf also has a front coil or torsion bar lift fitted, it's worth reviewing your control arms separately for that upgrade. For this air helper kit on its own, standard control arms are fine.
A wheel alignment isn't mandatory purely for fitting this air helper kit, because it doesn't change your unladen ride height or front-end geometry. If you're fitting it at the same time as new leaf springs, a lift kit, or other suspension components, get an alignment done as part of that larger job. Our team can advise on alignment needs based on everything else you're changing on the vehicle.
This kit doesn't come in multiple spring rates because it's an adjustable air spring, not a fixed-rate leaf spring. You control the support level yourself by adding or releasing air pressure to suit the load on board, from empty to fully laden. If you need a different constant load rating for your leaf springs themselves, our leaf spring range has options to pair with this kit.
This kit doesn't change your 4Runner or Surf's static ride height or wheel clearance, so it won't create room for larger tyres on its own. If you're after more tyre clearance, you'll need a genuine lift such as raised leaf springs from our leaf spring category, which can be run alongside this air helper kit for load support. Talk to our team about tyre size limits for your specific 4Runner or Surf model.
Airbag Man covers the air springs in this kit with a limited lifetime warranty against manufacturing defects. Full warranty terms and claim process details are available on our FAQ page, or you can contact our team directly for help with a warranty query. Keep your proof of purchase and installation date on file in case you need to make a claim.
Yes, plenty of 4Runner and Surf owners run this air helper kit as a daily driver setup, letting pressure down for the commute and topping it back up before a loaded trip. Because it doesn't alter your standard ride height or steering feel when deflated, everyday handling stays close to factory. It's designed to add support only when you need it, rather than running high pressure all the time.
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