The Airbag Man CR5114HP is a high pressure air spring helper kit built to fit inside the factory rear coil springs on the Toyota Landcruiser 100 Series (1998-2007), including AHC-equipped Sahara wagons. Unlike a static lift, the twin air bags let you dial in extra load support through an external inflation valve, correcting rear sag under a caravan, camper or tray load without changing your unladen ride height. It pairs neatly with our wider airbag suspension range for GVM-conscious touring rigs. Made to Australian towing conditions, backed by manufacturer warranty, and in stock now with fitment support from our team.
Browse all compatible suspension parts for your High Pressure Helper Kit Toyota using our parts finder.
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Toyota | Landcruiser | 100 Series (rear coil, incl. AHC/Sahara) | 1998-2007 | 4.2L Diesel, 4.5L V8 Diesel, 4.7L V8 Petrol |
Not sure if this fits your vehicle? Contact our suspension experts or check our FAQ page.
This kit is a helper for your existing rear coil springs, not a replacement spring rate, so the main decision is how much air pressure you run day-to-day versus under load. Vehicles carrying a constant heavy accessory load — a tray, canopy, dual battery tray, bullbar or long-range fuel tank — typically run a base pressure to firm up the rear before adding extra for towing. Common accessories affecting rear load on a 100 Series include a caravan or camper tow ball weight, a slide-on canopy, roof top tent and drawer systems — factor these in when setting your pressure. If you're unsure where to start, our team can help work out a base pressure from your accessory list.
Fitting the CR5114HP means removing the rear coil springs to install the air bags inside them, so it suits an experienced DIY installer with basic suspension tools or a professional workshop. Because the kit doesn't add permanent lift or change suspension geometry, wheel alignment is not mandatory after fitting — unladen ride height, camber and caster stay as they were. Check air line fittings and connections for leaks after the first 500km of driving, and again at each service interval. If you're also upgrading control arms or shocks at the same time, have both jobs done together to save on labour.
Airbag Man design air spring helper kits specifically for Australian 4WDs, utes and vans, with local engineering input rather than a generic overseas fitment. Each kit is backed by a manufacturer warranty and developed with Australian towing and touring conditions in mind. Tradespeople running constant tray or canopy loads and tourers towing caravans both use Airbag Man kits to keep the rear of their 100 Series level — view the full Airbag Man range for other Toyota and 4WD applications.
This kit suits 100 Series owners who regularly carry a heavy rear load — tradies with a tray or canopy, tourers towing a caravan or camper trailer, and anyone running a long-range fuel tank, water tank or drawer system in the back. If the rear end sags noticeably once the family, gear and tow ball weight are loaded up, this airbag suspension helper kit is built to correct that without a full spring replacement.
The CR5114HP ships from our Australian stock with fast dispatch and fitment support from our suspension team. Browse our full lift kit range or get in touch if you need help matching this kit to your 100 Series accessory load.
Yes, the CR5114HP is built specifically for the Landcruiser 100 Series rear coil spring set-up, produced 1998-2007, including AHC-equipped Sahara wagons. It fits inside the factory rear coil spring rather than replacing it, so it works with standard-height and raised rear coils as long as the coil diameter matches factory. If you've already fitted aftermarket rear coils, check bag compatibility with our team before ordering. Contact our fitment support team if you're running a non-standard rear coil spring.
This kit is not a lift kit — it's a load-support helper that fits inside your existing rear coil springs. Unladen, your Landcruiser's ride height stays as it left the factory or wherever your current coil springs sit it. Under load, increasing air pressure through the inflation valve brings the rear back to level rather than adding permanent lift. For an actual lift in inches, look at our raised coil spring options instead, which can be run alongside this airbag kit.
The CR5114HP kit includes two high pressure air bags sized to fit inside the 100 Series rear coil springs, mounting cups top and bottom, a braided air line joining both bags, and a single external inflation valve. All mounting hardware needed for a coil-over-airbag installation is included. An air compressor or 12V inflator to pressurise the bags is sold separately.
Yes, correcting rear sag under tow ball weight is the main job this kit is designed for. As tow ball weight loads up the rear coil springs, increasing air pressure in the bags brings the rear back to a level ride height, improving headlight aim and steering feel. It's commonly paired with towing a caravan or camper trailer on a 100 Series. For heavier constant loads we can also discuss upgraded rear coil springs alongside this kit.
No, this airbag helper kit doesn't change ride height or suspension geometry, so control arm upgrades aren't required for fitment. Control arms only need attention if you're separately fitting a lift kit that alters axle-to-chassis angles. If you are planning a lift alongside this kit, our team can advise whether control arms need upgrading for correct geometry.
No, wheel alignment isn't mandatory after installing this kit because unladen ride height, camber and caster don't change. The air bags only firm up under load when you add pressure, they don't lift the vehicle at rest. If you're fitting this alongside a coil spring or lift kit change, alignment is recommended for that separate work.
This kit doesn't replace your coil spring rate — it works alongside your existing (or upgraded) rear coil springs. If you need a different constant spring rate for a permanent heavy load like a canopy or tray, we'd recommend our coil spring range for a higher-rated option, with this airbag kit reserved for variable loads like towing or touring gear. Our team can help match a spring rate plus airbag combination to your accessory list.
This kit doesn't add lift, so it won't change your tyre clearance at the guards. If you're chasing room for larger tyres, you'll need a genuine lift kit with raised coil springs — this helper kit can still be run underneath a lifted rear coil spring for extra load support when towing.
The CR5114HP is covered by Airbag Man's manufacturer warranty against manufacturing defects. Keep your proof of purchase from 4WD Suspension Australia for warranty claims. Contact our team if you have any fitment or product questions covered under warranty.
Yes, many 100 Series owners run this kit daily, keeping air pressure low or empty for unladen driving and adding pressure only when towing or loaded up. Because it doesn't change unladen ride height, day-to-day handling and ride comfort stay close to standard when the bags are deflated. It's a practical option for anyone who alternates between empty running and towing or hauling.
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