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Polyair Bellows Ultimate to suit GMC Sierra 3500HD (Gen4) from 2020 onwards.
- Sierra 3500HD (Gen 4).
Note: Product images shown are generic and for reference only. They do not depict fitment to your specific vehicle.
The Polyair Bellows Ultimate load assist kits are specifically designed to suit big American SUV’s and 4WD’s. With an internal bump stop to help absorb shock, even with zero air pressure, it provides a three-stage ride comfort.
Features and benefits of Bellows Ultimate System:
Ideal for large American 2WD and 4Wd trucks such as Dodge, Ram, Chev 2500HD, GMC 2500HD, Ford ‘F’ Series and Toyota Tundra. Also suitable for large caravans, 5th wheelers and heavy horse floats.
The Polyair Ultimate Bellows are rated at 2,800KG and can be used up to 100 PSI. They have separate airlines to each bag to stop sway and give better handling and ride control under all types of road and off-road conditions.
On the Ram utes they fit beside the coil springs, and with all other utes they fit between the rear axle and chassis.
They are ideal for use with air inflation kits including the popular Polyair Wireless Remote Compressor Kits.
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It’s important to purchase the springs, shock absorbers or a complete kit that will actually improve your vehicle
"not wreck it!"
We can help with your expectationsand your budget, before recommending some suitable options.
We'll make sure you get the right product for the job first time!
Phone us: 1800 807 176
Ed Mulligan has decades of experience in both off-road motor sports and aftermarket 4WD suspension modifications. Ed founded Opposite Lock Accessories in 1974 and then 4WD World in 1995.
