The Airbag Man Helper Kit RR4634 is engineered specifically for Mazda BT50 (2011-2020) leaf spring suspension, delivering adjustable load support that eliminates spring sag and dramatically improves towing stability. Using Firestone airbags with lifetime manufacturer warranty, this complete airbag suspension system provides on-demand load levelling for tradies, tourers and caravan towers across Australia. Suits standard and lifted BT50 variants with everything included for straightforward fitment — backed by 25+ years of Airbag Man engineering excellence and Australian stock for fast dispatch.
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Mazda | BT-50 | B32 | 2011-2020 | 3.2L Diesel |
| Mazda | BT-50 | B32 4x4 | 2011-2020 | 3.2L Diesel |
| Mazda | BT-50 | B32 4x2 Hi-Rider | 2011-2020 | 3.2L Diesel |
Browse all compatible suspension parts for your Helper Kit For Leaf Springs - Suits using our parts finder.
Not sure if this fits your vehicle? Contact our suspension experts or check our FAQ page for detailed fitment guidance and vehicle-specific advice.
The Airbag Man RR4634 helper kit is designed to support varying loads from empty to maximum GVM, with airbag pressure adjusted according to your specific load requirements. Common rear accessories that benefit from airbag support include aluminium or steel canopies, toolboxes, water tanks, dual battery systems, long-range fuel tanks, drawer systems and roof racks with rooftop tents. For towing applications, airbags compensate for towball download from caravans (200-350kg typical), camper trailers, boat trailers and heavy-duty work trailers, maintaining level stance and proper suspension geometry regardless of tongue weight.
The Airbag Man RR4634 kit is designed for straightforward installation by experienced DIY enthusiasts or professional workshops, with typical fitment time around 120 minutes using basic hand tools. The complete kit includes detailed step-by-step instructions with QR code access to online fitting guides and video tutorials. Airbag brackets mount between the leaf spring pack and chassis using supplied hardware without drilling or permanent modification. After installation, start with 20 PSI baseline pressure and adjust according to load — empty vehicles may run 5-20 PSI for comfort, while maximum loads can use up to 100 PSI for support. Professional wheel alignment is not required for airbag-only installation, though it's recommended if you're also upgrading to complete lift kits or suspension components.
Airbag Man has specialised in air suspension systems for over 25 years, becoming Australia's most trusted name for load-levelling solutions across passenger vehicles, 4WDs, commercial trucks and towing applications. Every kit uses premium Firestone airbags engineered to withstand Australian outback conditions including extreme heat, bulldust, corrugations and heavy payload demands that exceed typical global standards. Backed by comprehensive lifetime manufacturer warranty on airbags and renowned customer service support, Airbag Man delivers proven reliability for tradies, grey nomads and adventure tourers nationwide — view the full Airbag Man range for your vehicle.
The RR4634 is ideal for Mazda BT50 owners who regularly carry heavy rear loads or tow caravans, campers and trailers. Tradies with toolboxes, trades equipment and materials will appreciate the adjustable support that prevents spring sag and maintains safe ride height throughout the workday. Touring families towing caravans or camper trailers benefit from improved stability, reduced sway and level stance that enhances braking and steering control. This airbag suspension upgrade is particularly valuable for BT50 owners who experience variable load conditions — simply adjust air pressure to match your current cargo or towing requirements for optimal performance and comfort.
Ready to eliminate spring sag and improve your BT50's load-carrying capability? The Airbag Man RR4634 helper kit is in stock now with fast Australia-wide dispatch, backed by expert technical support and comprehensive warranty coverage. Whether you're upgrading your existing suspension or building a complete touring setup, our team can help you select compatible components — browse our full suspension components range for shock absorbers, leaf springs and steering dampers to complement your airbag installation.
The RR4634 kit is specifically engineered for Mazda BT50 models from 2011 to 2020 (B32 series) with the 3.2L diesel engine. It fits both 4x4 and 4x2 Hi-Rider variants with leaf spring rear suspension. Two versions are available: RR4634 for factory standard height suspensions, and RR4634 lifted option for vehicles with 2-inch suspension lifts. If you've modified your BT50 with aftermarket suspension or aren't sure of your exact variant, contact our technical team for confirmation before ordering.
Airbag helper kits don't increase your vehicle's legal GVM or payload rating — they help you safely utilise your existing load capacity by preventing spring sag and maintaining proper suspension geometry. The RR4634 system supports varying loads from empty to maximum rated payload through adjustable air pressure (5-100 PSI). This prevents rear squat under heavy loads, eliminates the handling and braking issues caused by compressed springs, and significantly improves towing stability when caravan or trailer tongue weight would otherwise cause the rear end to sag. Always stay within your BT50's manufacturer-specified GVM and axle load ratings.
This is a complete installation kit containing everything needed: two Firestone airbags with lifetime warranty, powder-coated steel mounting brackets, grade 8 hardware (bolts, washers, nuts), UV-resistant nylon air lines, brass push-to-connect fittings, in-cab inflation valve with 0-100 PSI gauge, and detailed step-by-step instructions with QR code access to online videos. You don't need to source any additional components for installation. The kit is designed for straightforward fitment without drilling or permanent modification to your BT50, with all brackets engineered to mount between existing leaf spring and chassis mounting points.
Yes, the RR4634 is ideal for towing applications and is widely used by BT50 owners towing caravans, camper trailers, boat trailers and heavy work trailers. The adjustable airbags compensate for towball download (typically 200-350kg for caravans), preventing rear-end squat that causes headlight glare, poor steering response and reduced braking efficiency. By maintaining level stance, airbags improve trailer stability, reduce sway, and ensure proper weight distribution across all four wheels. This results in safer, more confident towing with better control and shorter stopping distances. Many Australian touring families consider airbags essential safety equipment for long-distance caravan travel.
Airbag helper kits work independently with your existing suspension components — no additional upgrades are required for installation or operation. The RR4634 bolts between your factory leaf springs and chassis, providing supplementary support without replacing or modifying other components. However, if you're building a comprehensive suspension upgrade for heavy touring or frequent heavy loads, many BT50 owners combine airbags with upgraded rear shock absorbers for improved damping control and comfort. Control arm upgrades are only necessary if you're installing a suspension lift kit or experiencing worn bushings. The airbag system works perfectly with both factory and aftermarket suspension setups.
No, wheel alignment is not required when installing airbag helper kits alone. The RR4634 system mounts between the leaf springs and chassis without altering suspension geometry, steering components or wheel alignment angles. However, wheel alignment is mandatory if you're simultaneously installing a suspension lift kit, replacing leaf springs, or fitting new control arms. Even with airbags alone, it's good practice to have alignment checked if your BT50 hasn't been aligned recently, especially if you've noticed uneven tyre wear or steering pull. Proper alignment extends tyre life and ensures optimal handling performance regardless of your suspension configuration.
Yes, adjustability is the primary advantage of air suspension systems. The in-cab inflation valve allows you to easily change pressure from 5-100 PSI to match your current load. Run 5-20 PSI when empty for comfortable ride quality, increase to 40-60 PSI for moderate loads like canopies and camping gear, and inflate to 80-100 PSI for maximum loads or heavy towing. Pressure adjustment takes seconds using a standard air compressor or petrol station air line — no tools required. Many BT50 owners keep a portable 12V compressor onboard for convenient pressure changes when loading up for weekend trips or connecting the caravan.
The RR4634 is an airbag helper kit, not a suspension lift kit, so it doesn't provide additional ground clearance or tyre fitment capacity. When inflated, airbags restore your BT50 to factory ride height under load, but they don't raise the vehicle higher than standard. If you want to fit larger tyres for off-road capability or improved approach angles, you'll need a dedicated suspension lift kit with raised springs and extended shocks. Airbags and lift kits work together perfectly — many BT50 owners install a 2-inch lift for larger tyres and ground clearance, then add airbags (using the RR4634 lifted variant) for load support and towing stability.
The Firestone airbags included in this kit are backed by a lifetime manufacturer's warranty against defects in materials and workmanship — one of the industry's most comprehensive warranty programs. This covers the airbag bladders themselves for the life of the product when used within specified pressure and load limits. Other components including brackets, fittings, air lines and valves carry standard manufacturer warranty coverage. Airbag Man has over 25 years of proven reliability in Australian conditions, and warranty claims are rare due to the robust Firestone construction. For warranty activation and full terms, register your kit after installation through the Airbag Man website.
Absolutely — the RR4634 is designed for everyday use and actually improves daily driving comfort and safety. When running appropriate pressure for your current load, airbags provide a smoother, more controlled ride by absorbing road shock and preventing harsh suspension movement over bumps and corrugations. Many BT50 owners leave airbags inflated to 20-30 PSI even when empty for improved ride quality. The system is particularly beneficial for tradies who experience variable daily loads, allowing quick pressure adjustment between empty morning commute and loaded work site travel. Highway driving is enhanced through better stability, reduced body roll and improved steering response, especially when towing or carrying rear cargo.
Perfect for Our Family Camping Adventures
Had these airbag helper springs fitted to my BT50 before our last trip down the coast and what a difference they made with the camper trailer loaded up. The rear end sits level now even with all the kids' gear, water tanks and recovery equipment on board. Installation was straightforward and the ride quality is noticeably better over corrugations compared to how the leaf springs handled the weight before. Definitely worth the investment for anyone doing regular touring with a loaded rig.(5)
Essential Upgrade for Long-Distance Outback Tourin
After fitting these airbag helpers to my BT50, the difference on corrugated tracks through the Tanami was night and day. Previously the rear end would sag badly with my camper and water loaded up, but now it sits level and handles the weight properly. The ride quality stayed surprisingly compliant even when aired up, which matters when you're doing 800km days on rough desert tracks. Well worth the investment for anyone serious about remote touring.(5)
Perfect for Family Camping Trips
Fitted these airbag helpers to my BT50 before our last trip down the coast and what a difference they made with the camper trailer loaded up. The rear end stays level now and the ride is heaps more comfortable, especially on corrugated roads. Installation was straightforward enough for a weekend job, and the kids reckon the trip was way less bouncy this time around.(5)
Best thing I've added to the BT50
Been running these airbag helpers on my BT50 for about six months now and they've made a huge difference when I'm loaded up with tools and materials. The rear end used to sag pretty bad with a full load but now it sits level and handles way better on the highway. Installation was straightforward enough to do in the driveway over a weekend, and the quality of the kit is spot on for the price.(5)
Perfect for Our Loaded BT50 Camping Trips
These airbag helpers have been a game changer for our family camping trips in the BT50. Used to get terrible sag in the rear with the camper trailer, rooftop tent, and all our gear loaded up, but now the ride height stays level and the handling is so much better on corrugated dirt roads. Fitment was straightforward and being able to adjust the pressure depending on load has made a huge difference to both ride comfort and safety.(5)
Add your favourites to cart
Log into or create your Afterpay account, with instant approval decision
Your purchase will be split into 4 payments, payable every 2 weeks
All you need to apply is to have a debit or credit card, to be over 18 years of age, and to be a resident of country offering Afterpay
Late fees and additional eligibility criteria apply. The first payment may be due at the time of purchase
For complete terms visit afterpay.com/terms
