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Enjoy smooth, stable towing with your fifth-wheel trailer by replacing your ordinary pin box with this air-ride-equipped model. An internal air bag and built-in strut absorb road shock so that you won't feel it. Replaces Lippert 0719 pin boxes.
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Specs:
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Getting there is half the fun, right? Not if you're being bumped, jerked, jammed, and pushed around from the chucking and road shock that occurs as you tow your fifth-wheel trailer or RV. And imagine the costly wear and tear on your trailer as it endures that rocky ride.
Put the fun back into your trip and ease the stress on your trailer by replacing your factory pin box with the Trailair air ride pin box. The internal air bag and built-in shock work together to cushion your ride, improve handling, and limit strain on both your truck and your trailer.
Standard pin boxes without any type of shock absorption transfer road shock to your trailer, resulting in potential damage to the trailer and an overall bumpy ride. But the Trailair air ride pin box absorbs shock and cushions your ride as you pull your fifth-wheel trailer. When you encounter uneven terrain on your trip or hit a pothole on the highway, the Trailair pin box compresses vertically, similar to how a pair of scissor blades closes in on each other. This compression transfers the road shock and vibrations to the internal air bag, saving your fifth-wheel hitch, trailer, or tow vehicle frame from enduring a rocky ride.
A built-in strut, or shock, controls the Trailair's compression so that the internal air bag doesn't burst. The strut also causes the pin box to appropriately rebound without any bounce, and positions it to be ready for the next bump in the road.
Simple Setup and Installation
First, simply remove your existing Lippert 0719 pin box from your trailer. The Trailair uses the same bolts that held on your original pin box so no additional hardware is required for installation. Plus, the Trailair pin box comes out of the box ready to be put on your trailer, so no assembly is needed. Because the Trailair is quite heavy, you should put it on an elevated surface or have a friend help you support its weight during installation.
The internal air bag should be inflated after the pin box has been mounted on your trailer. Using the air intake valve, inflate the air bag until the outer cylinder of the shock rises high enough to fully expose the yellow inflation indicator sticker.
Ratings & Reviews
Mike L.
6/17/2026
Good deal Donald, please give us a follow-up once you've tried it out!
Walt N.
12/6/2024
We finally was able to hook up and take the RV from Home to Mt. Home Arkansas and up and down the Mountains over to Tennessee.The hook up is different than something without the AIR rubber inner tube. I have to raise the landing gear about 3 or more higher.The pin box then slides into the coupling. I also bought a new Curt fifth wheel.I get the rough roads but the porpoising is not noticeable.I like it and so far its a great fit.
Joe S.
6/23/2021
My hitch is working great! It has made a big difference in how well the trailer rides on my truck. No more harsh bumps when I drive over rough roads or poor bridge approaches. Awesome product!
Butch L.
5/9/2024
Dependable, sturdy, no issues. Now, if theyd fix the roads!!!
Adam P.
1/25/2025
Pin box made a significant improvement in both reducing shock loads to the hitch and chucking. Only drawback is the need to adjust air pressure as ambient temperature andor elevation changes. If you have one of these hitches, you will want a small compressor in order to top it up. Due to the pin plate being at an angle while not connected to the hitch airbag fully extended with no load, the trailer needs to be slightly lower than it would appear in order to load up the airbag as the pin assembly makes contact with the truck hitch. Practice makes this easier to eye ball. Powder coating was a disappointment, and the paint lifted at almost every 90 degree angle and required repainting after only a year. Other than that, Im a satisfied customer.
Robin H.
1/26/2025
Hoss
9/7/2023
Makes a world of difference in towing comfort. Jarring is minimized at stops and smooths out the tow on rough roads.
Mike L.
10/31/2023
Jack
8/27/2022
I towed our Keystone Raptor about five thousand miles with the original pin box before I decided to try to smooth out the ride so purchased and installed the Trailair Air Ride 5th wheel pin box. I have since towed it approximately Six thousand miles and We are completely satisfied.
Jenny N.
2/17/2023
Congrats on the new RV! I suspect what happened is that the new RV does not have a Lippert 1116 5th-wheel pin box. This does mean that the mounting bolt pattern will be different which you discovered. I think that your best bet will be to sell the pin box. If you can tell me the pin box number of the pin box that is on your new RV I can tell you if there is a Trail Air pin box that will work.
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John
9/16/2023
A year later and no issues using the Air Ride pin box. Its still working great.