Ram 2500 & 3500 Air Bag Kits

4 products

A fifth wheel, a gooseneck or a slide-in camper can still flatten the rear of a heavy-duty Ram. BOSS rear air bag kits let you bring the truck back to level under the load and let the air out when you unhook. Which kit you need depends on what's at the rear of your truck.

Which kit fits your Ram

Your truck Kit Price
2500, 3500 with a leaf spring rear, single rear wheel or dually (not cab chassis), standard height to a 2″ lift Leaf rear kit, 2002–2019 (LA-34) $395
2014–2018 2500, 3500 with a coil spring rear, single rear wheel, keeping the coil springs Coil assist kit (LA-76) $395
2014+ 2500 with a coil spring rear, replacing the coil springs Coil replacement kit (LA-67) $395
3500 cab chassis, 2WD and 4WD Cab chassis kit (LA-107); contact us to confirm your year $395

Each kit page lists its exact years, full specs and fitting instructions. Not sure? Send us your year and VIN and we'll confirm before you order.

Leaf or coil?

Look behind the rear wheel. Coil trucks have a large coil spring above the axle, and leaf trucks have stacked steel leaves running front to back.

Coil assist or coil replacement? The coil assist kit keeps your factory coil springs, and the air bags work alongside them and share the extra load. The coil replacement kit's air bags take the place of the rear coil springs.

Fitting

The kits bolt on, and most installs take 2–3 hours. Every kit comes with BOSS's fitting instructions. For leaf spring trucks there is also our step-by-step guide: How to Install Air Bags on a Ram 2500 or 3500 with Leaf Springs.

Adjust the air from the cab

The bags fill from any tire air line through the Schrader valves, even at a gas station. To adjust from the driver's seat, add an inflation kit with PX01 in-cab controller ($249), or the universal Auto Pressure Air Bag Controller ($599), which works with any load assist kit and the compressor already on the truck. More options: compressor kits and controllers.

Ram 2500 and 3500 air bag questions

Will it help with a fifth wheel? Yes. Add air until the truck is level with the trailer's pin weight on.

Do the bags replace my leaf springs? No. On leaf spring trucks the springs stay in place, and the bags share the extra weight with them.

Can it carry more than the truck's rating? No. Air bags level the load. They don't raise your GVWR, payload or towing rating.

Looking for the Ram 1500? See the Ram and Dodge kits.

Genuine BOSS air suspension from Arch Country Auto, BOSS's exclusive U.S. distributor. Free U.S. shipping from St. Louis, Missouri, and a 1-year warranty against manufacturing defects.