Equip your vehicle with the Kleinn onboard air system, engineered specifically for owners who demand professional-grade utility and precision vehicle-specific fitment. This premium heavy-duty kit provides a reliable high-output air source directly on your chassis, allowing you to easily inflate large tires, power air tools, operate air suspension bags, or tackle demanding off-road challenges. The heart of this high-performance system features a model 6450RC 150 PSI waterproof high-output air compressor paired with a powder-coated steel three-gallon air tank. Both components mount securely beneath the truck using custom-engineered, direct-fit mounting brackets that bolt directly to existing factory locations. This system features a true 100 percent bolt-on installation that requires absolutely no cutting, welding, or drilling, allowing anyone to achieve a professional-looking setup. For ultimate utility, the package includes a remote-mounted quick connect, a high-pressure tire inflator hose with a dedicated storage bag, a 160 PSI panel-mounted gauge for effortless monitoring from inside the cab, and a locking air chuck equipped with an integrated digital pressure gauge and pressure release valve. System comes complete with all necessary air lines, wiring, and high-grade hardware. Built to endure the toughest environments, this complete package provides the ideal balance of discreet original equipment manufacturer style mounting and high-output pneumatic performance that serious truck builds count on.
Kleinn TRX21-OBA - Direct Bolt-on Onboard Air Kit - 160PSI Air Gauge - 2021-2024 RAM TRX
| Brand | Kleinn Automotive Accessories |
|---|---|
| Part Number | TRX21-OBA |
| Model 1302 | Quick Connect Relocation Kit for Tire Inflation |
| Model 6353RT | Air Tank Capacity: 3.3 gal |
| Upgrades Available | Any Kleinn Air or Train Horns |
| Model 1301 | 160 PSI Luminated Air Gauge with Mounting Plate and Toggle Switch |
| Model 6450RC | High Output Waterproof Air Compressor 200 PSI / 100% Duty Cycle |
| Model INF-1 | Tire Inflation Kit with Custom Luminscent Gauge Inflator and 24' Heavy Duty Hose with Quick Connects Attached. |
| Mounting | Model-specific brackets for air system, horn and horn support included |
| Weight | 43 lbs |
| Year(s) | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2021-2026 | Ram | 1500 | TRX | Tank: Below front skid plate Compressor: In Engine bay passenger side |
Own this? Tell other truck owners how it fits and holds up. Write the first product review
Every review below is a verified Google review of an H&H store — written by real customers about the people who sold, fitted and stood behind their gear.
Fast, friendly service! Eric was a pleasure to work with in taking care of an insurance claim for my damaged truck bed topper for my 2007 Ford F150. The new topper was delivered and installed the very next day! It looks great...a lot better than the one I had on there!!! I highly recommend Leer Truck Accessories of Conyers for all your truck accessory needs!
I understand now why LEER has such high reviews. Blake and Justin create an environment that is completely stress free. Their knowledge and communication skills are top notch. My trailer hitch install was complete in less than an hour. Make the call, you won't be disappointed!!
Great team great work highly recommend!
Everyone was professional and courteous.. It was a very pleasant experience. I am very impressed with my treatment and the product and won’t hesitate to return. Highly recommend.
This place is the best, customer service is exceptional, they install steps for my denali , twenty five hundred h d, they have installed rock lights on my truck, i am very happy with this company.
Wonderful people to work with. I have had both a Tono cover and mudflaps installed. They even helped finish up a taillight installation that I almost completed. These are the best people that I know to go get anything for your truck. I would recommend them highly!
Called the night before for a repair on the trailer. They were there at the exact time they said they would be and was very quick with the service. The technicians were very kind and polite, they even explained some parts and how they worked. Will definitely be back if i have any issues in the future when in the area.
Good job done. Friendly and fast. What else could I ask for.
I recommend for anyone needing upgrades to their vehicle. I was in and out in an hour for my lightning installation. I'll be back.
Great customer service and great work on my truck. Kim and the team were exceptional every visit
Did a great job putting a hitch in my truck
Very nice place to do business with
Just left this place and I was thoroughly impressed! Justin and Andrew were professional and knowledgeable. Thank you guys, I’m really happy with my new cam locker box.
This crew was run by Justin and a couple more worker. They were extremely friendly and super professional and efficient at their job. I am extremely pleased with the finished job and can’t say enough good about this product.
If you want amazing customer service definitely go here! They were extremely helpful! Thank you!!!!
Very friendly service very helpful
I purchased a roll up cover that came damaged from the factory. Jim was able to kindly replace my broken part with another one. Exceptional customer service.
Ordered a half cover for the bed of my F-250. The cover arrived the next morning. Appointment to install so I could watch it being completed, so I can remove later. The young man that sold me the cover as well as installed the cover was absolutely great. He explained everything patiently with excellent communication skills and instruction. This was a very pleasant experience THANKS!
Great work!!
Fast! My order was ready, and installed in less than 24hrs! (Would have been sooner but I had to wait till next day) Staff was very friendly, will definitely be back!
Luke went out his way to make sure we had enough space for the delivery for our new shed!! Thanks Luke! You're awesome!!!!!!!
Had the pool parts we needed and a lot of other things!
Every employee was very helpful, kind and went out of their way to help me.
Guys did an awesome job get'n my A.R.E. cap connected to my 2026 Chevy that I removed from my 2021 Chevy. Super nice guys in the shop as well!! Looking forward to doing more business with these gentlemen!
Reviews of H&H Truck & Outdoor stores, sourced from Google. They rate our stores and service, not this individual product.
These fit different trucks. and we’ll show the one that fits.
See the whole line →
Tool BoxCamLocker S71LPRLMB - Standard Crossover Tool Box, Matte Black, AluminumGWCM-S71LPRLMB$1,004.00 
Hitch & Towing AccessoriesCURT 56070 - Wiring Connectors & AdaptersBKDK-56070$86.95 
Nerf Bars & Step BarsBig Country 104870 - Fusion Series, Black, 4" FusionCNNX-104870$118.68 
Hard Folding Tonneau CoverUnderCover UX32008 - Ultra Flex, 5'7" Bed, BlackBKFX-UX32008$1,299.99 New arrivals, store-only specials and the occasional truck tip from our 22 locations across Alabama, Georgia, Mississippi and Florida.
