Skip to product information
1 of 3

Boss Air Suspension

Load Assist Kit for Holden Colorado 12 + / LDV T60 & Steed 2/4WD | up to 2 inch lift

Load Assist Kit for Holden Colorado 12 + / LDV T60 & Steed 2/4WD | up to 2 inch lift

SKU:LA-13

Regular price $745.00 AUD
Regular price $0.00 AUD Sale price $745.00 AUD
Sale Sold out
Taxes included. Shipping calculated at checkout.

or up to 12 months interest free. Fees apply. ZIP

Backorder

Available to backorder– usually ships within 3–5 weeks

Download Fitting Instructions

The Load Assist Kit comes with:

  • 2 x BOSS Extreme Series Double Bellow Airbags
  • 4 x brackets (2 upper & 2 lower)
  • Mounting Hardware
  • Quality SAE J844 Government Approved Airline
  • Dual Schrader Valves Mounted in Stainless Panel
  • Instructions for fitting

Boss Extreme series airbags are rated at 2500lb or 1136kg per side and have been government approved tested to over 750psi.

All Boss airbags are manufactured by us and are branded Boss. Beware of unbranded airbags, usually coming from China from other companies.

Average dual cab ute will run around 15-45psi depending on load.

Boss has sold over 45,000 load assist kits in Australia, proven over time with 4WD enthusiasts, Mining companies, Tradies, 4WD Tour Operators as well as in Agricultural Vehicles, Trailers and motorhomes, limited only to your imagination.

To get the best performance from your kit inflate airbags just enough to achieve a level ride height. By doing this you are also allowing all of the suspension components to share the extra load of the vehicle and not putting any unnecessary pressure on any one individual part of your vehicles suspension.

NOTE - Suits the first Sportscat model but NOT the Sportscat+ (Plus) model with the rear de-coupling anti-roll bar.

View full details

Frequently asked questions

Does a Boss Load Assist kit increase my GVM?

No. A Boss Load Assist kit does not increase your GVM. It supports and levels the vehicle within the factory limits so it sits and tows correctly, but the legal carrying capacity is still set by the vehicle’s original GVM and rear axle ratings.

Why are the left and right airbags plumbed separately?

On vehicles, Boss Load Assist kits are plumbed as a dual-path system so the left and right airbags cannot transfer air between them. This stops the vehicle leaning or feeling unstable in corners. Linking left and right together allows air to move from the loaded side to the unloaded side, which can cause body roll and poor handling.

Can I use a Load Assist kit on a lifted vehicle?

Yes, but the setup depends on your lift height. Standard 2500 or 2600 double-bellow bags work on stock height and lifts up to around 2 inches. For more than 2 inches of lift you generally need triple-bellow bags (2503 or 2603) and/or different brackets or spacers. The best approach is to measure the gap at the bump stop at your desired ride height and confirm the correct kit with Boss.

What is the difference between standard Load Assist and LA Clearance kits?

LA Clearance kits are standard Boss Load Assist kits that may have minor cosmetic marks, small scratches or packaging damage. The structural components, testing, performance and warranty are the same as the non-clearance kits. They are simply offered at a sharper price because they are not cosmetically perfect.

Can I swap to triple-bellow airbags if I lift my vehicle more than two inches?

Yes, provided you stay within the same airbag series. For example, if your kit uses 2500 airbags and you add more than 2 inches of lift, you can normally upgrade to 2503 triple-bellow bags that suit the same bracket pattern. Airbags from different diameter series (e.g. 2400 vs 2500 vs 2600) are not interchangeable unless the kit is specifically designed for that change.

How strong are Boss airbags compared to other brands?

Boss airbags are manufactured using a proprietary blend of cured natural rubber, hi-tensile steel cords and ballistic reinforcing. They are independently tested to a recommended test pressure around three times the maximum working pressure, and burst-tested even higher. In load assist applications it is virtually impossible to pull the bag apart from the bracket because the bead is clamped by a solid aluminium ring, rather than relying on crimped plugs.

Why do Boss say you can't pull a Boss airbag apart?

Boss airbags are attached to the mounting brackets using an aluminium clamping ring that acts like a beadlock. The ring clamps the bead of the airbag directly to the steel plate so the bag is mechanically locked in place. Many other brands, including big names like Firestone and Dunlop, use plastic or metal end plugs crimped into the bellows. Under extreme droop (for example on a hoist or heavy articulation), those plugs can be pulled out of the bag. With the Boss beadlock-style design, the bag cannot be pulled off the mounting plate in normal service.

Can I install a Boss Load Assist kit myself?

Most competent DIYers can install a Boss Load Assist kit with basic tools in 2–3 hours. The brackets are vehicle-specific and generally bolt to existing chassis points. You need to be comfortable working safely under the vehicle, routing airlines away from heat and moving parts, and setting basic alignment. If in doubt, a suspension or 4x4 workshop can fit the kit for you.

What is the recommended minimum pressure for Boss airbags?

Do not run the bags completely empty. A minimum of around 5–10 psi is recommended when the vehicle is unladen. This keeps the bag in shape and protects it from pinching or chafing under full articulation.

What is the maximum lift height for the Load Assist Kit for Holden Colorado 12?

The Load Assist Kit for Holden Colorado 12 is designed for vehicles with a lift height of up to 2 inches. For lifts greater than this, consider using our triple-bellow airbags or taller brackets.

Can I use this Load Assist Kit on the Sportscat+ model?

No, this Load Assist Kit is compatible with the first Sportscat model only. It is not suitable for the Sportscat+ model due to its rear de-coupling anti-roll bar.

What is the recommended air pressure range for the airbags in this kit?

The average air pressure for a dual cab ute using this Load Assist Kit typically ranges from 15 to 45 psi, depending on the load being carried. Adjust the pressure to achieve a level ride height.

How does this Load Assist Kit improve vehicle stability?

This Load Assist Kit helps level and stabilise your vehicle by supporting the existing leaf springs, allowing for better weight distribution. This reduces body roll and enhances handling, especially when towing or carrying heavy loads.

What type of airline is included with the Load Assist Kit?

The kit includes quality SAE J844 Government Approved airline, ensuring durability and reliability in various conditions. This airline is designed to withstand the pressures associated with air suspension systems.

Is this Load Assist Kit suitable for off-road use?

Yes, this Load Assist Kit is suitable for off-road use. It has been tested and proven by 4WD enthusiasts and is designed to handle the demands of off-road conditions while providing enhanced stability and load support.