The Airbag Man Helper Kit (AIR-CR5107) fits Jeep Wrangler JL Sport, Overland and Unlimited models with a 100-105mm coil spring internal diameter, adding load-levelling air support inside the factory coil rather than a fixed lift. Firestone airbags carry a lifetime manufacturer's warranty and inflate on demand to counter sag from a bull bar, winch, roof top tent or tow ball weight. All mounting hardware and instructions are included, and you can browse all suspension parts for the Jeep Wrangler JL using our parts finder. In stock in Australia with fitment support from our team.
Browse all compatible suspension parts for your Helper Kit Jeep Wrangler Jl using our parts finder.
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Jeep | Wrangler | JL Sport (100-105mm coil ID) | 2018-ON | Petrol & diesel variants |
| Jeep | Wrangler | JL Overland (100-105mm coil ID) | 2018-ON | Petrol & diesel variants |
| Jeep | Wrangler Unlimited | JL (100-105mm coil ID) | 2018-ON | Petrol & diesel variants |
Not sure if this fits your vehicle? Contact our suspension experts or check our FAQ page.
This helper kit doesn't come in different spring rates because it isn't a coil spring - it's an air-adjustable support that works with your existing factory coil. Add air pressure before fitting heavy accessories such as a steel bull bar, winch, dual battery tray, roof top tent or drawer system, or before towing a caravan or box trailer, then deflate for everyday unladen driving comfort. If your Wrangler carries these accessories permanently, a set of load-rated coil springs may suit your needs better than an on-demand airbag.
Fitment suits an experienced DIY installer or a workshop familiar with coil-over air helper kits, using the factory upper and lower spring seat locations for the brackets. Because the kit only adds air pressure on demand and doesn't permanently change the unladen ride height, a wheel alignment isn't required after fitting - though it's worth checking geometry if you also install upgraded control arms or a separate lift kit at the same time. Check the air line fittings for leaks after the first loaded trip. Firestone airbags don't need a break-in period since they aren't a mechanical spring.
Airbag Man kits use Firestone air springs, sold with a lifetime manufacturer's warranty on the airbag against defects. 4WD Suspension Australia stocks the CR5107 kit locally for fast dispatch and provides fitment guidance for JL Sport, Overland and Unlimited variants before you order. You can view the full Airbag Man range to compare helper kits, full replacement air springs and combination kits for other Jeep and 4WD models.
This kit suits Wrangler JL owners who tow a caravan or box trailer, carry a bull bar and winch, or run a roof top tent and drawers, and who need to correct sag without replacing the coil springs. It's also a lower-cost option for tradies carrying tools and equipment who don't need a permanent lift. For vehicles under constant heavy load, a full airbag suspension setup or upgraded coils may be a better long-term fit.
The CR5107 Helper Kit is in stock in Australia and ships fast from our warehouse, with fitment support from our team for JL Sport, Overland and Unlimited models. Explore our full range of suspension components to build a complete setup for towing, touring or daily driving.
New to Jeep suspension? Read our guide to common Jeep suspension problems and how to fix them.
Yes, the AIR-CR5107 Helper Kit is designed for Jeep Wrangler JL Sport, Overland and Unlimited models fitted with a factory coil spring measuring 100-105mm internal diameter. Check your coil ID before ordering, as earlier JK models or aftermarket lifted coils outside this range use a different airbag size. If you're unsure, our team can confirm fitment against your VIN or coil spring measurement before you order.
This is a load-levelling helper kit, not a lift kit, so it doesn't raise your Wrangler's unladen ride height. Inflating the Firestone airbag adds supportive air pressure inside the coil spring to counter sag once you load a bull bar, winch, roof top tent or tow a trailer. For a permanent height increase, look at our lift kit range instead.
The kit includes 2 x Firestone air helper springs sized for the 100-105mm coil ID, mounting brackets, an air line kit with push-to-connect fittings, inflation valves and all fitting hardware plus instructions. Coil springs, shock absorbers and control arms are not included and remain your factory components. Full contents are listed in the kit includes section above.
Yes, that's its main purpose - inflate the airbags before hitching up to counter tow ball weight and rear sag, then deflate for unladen driving. It works with your factory Wrangler JL coil springs rather than replacing them, so it suits occasional or seasonal towing rather than a constant heavy load. For vehicles that tow permanently, upgraded coil springs with a higher load rating may be a better match.
No, control arm upgrades aren't required for this kit because it doesn't permanently change your Wrangler's ride height or suspension geometry. Control arms only need attention if you also fit a lift kit that alters caster or pinion angle. If you're combining this helper kit with a separate lift, check our control arm range for geometry-correcting options.
A wheel alignment isn't mandatory after installing this kit, since it only adds air pressure on demand and doesn't shift the unladen ride height or suspension angles. We still recommend a visual check of your alignment if you notice any handling change, particularly if the kit is fitted alongside other suspension modifications. Standard factory alignment specs remain the reference point.
This kit doesn't offer spring rate options because the airbag isn't a coil spring - it's an air-adjustable support that works with your existing factory coil. You control the load support by adjusting air pressure rather than choosing a spring rate at the time of order. If you need a fixed higher spring rate for constant loads, our coil spring range lists load-rated options for the JL.
No, because this kit doesn't raise the unladen ride height, tyre clearance stays the same as your factory Wrangler JL setup. If you want to run larger tyres, you'll need an actual lift kit that raises ride height and typically also correct control arms. Browse our lift kit range if a permanent lift and larger tyre clearance is what you're after.
The Firestone airbags in this kit carry the manufacturer's lifetime warranty against defects. This is a Firestone brand warranty, backed by our Australian-based fitment support if you have installation or compatibility questions. Keep your proof of purchase from 4WD Suspension Australia for any warranty claim.
Yes, run the airbags deflated for daily unladen driving and your Wrangler JL rides on its factory coil springs as normal. Add air pressure only when you're carrying extra weight or towing, then deflate again afterwards for a factory-comfort ride. This on-demand approach means the kit doesn't compromise everyday comfort the way a permanent heavier spring rate can.
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