Kleinn Automotive Accessories TRX21-734 - Onboard Air Systems

See it in action

Description

Upgrade your vehicle with the Kleinn Demon train horn and onboard air system, engineered specifically for owners who demand premium quality and precision vehicle-specific fitment. This premium heavy-duty kit delivers an unmatched combination of spine-tingling volume and professional-grade utility, and everything needed arrives in one box for a professional and flawless setup. We custom engineer chassis-specific mounting brackets that bolt our genuine Kleinn components directly to existing factory locations. Using common hand tools, anyone can install this system without drilling a single hole, ensuring a true 100 percent bolt-on installation. This high-performance package features the legendary, earth-shaking blast of our Demon model 730 triple train horn. Providing the pneumatic power is a high-output Kleinn waterproof air compressor paired with a Cortec inner-coated three-gallon air tank, creating a versatile onboard air station capable of inflating large tires, powering air tools, or operating air suspension bags. For added utility, the package includes a remote-mounted quick connect, a high-pressure air hose for tire inflation, and a dedicated storage bag. For enthusiasts looking to maximize their performance, the entire setup can be upgraded to deliver an even louder blast by adding the part number 6890 Ultra BlastMaster valve upgrade kit. Built to endure the toughest environments, this complete system provides the ideal balance of discreet mounting and high-output performance that serious custom builds count on.

Ram 1500 TRX Onboard Air System with Model 730 Horns

Specifications

BrandKleinn Automotive Accessories
Part NumberTRX21-734
Model 1302Quick Connect Relocation Kit for Tire Inflation
Model 6353RT3.3-Gallon Air Tank inner cortec coated.
Model 6450RCHigh Output Waterproof Air Compressor 200 PSI / 100% Duty Cycle
Model 730Triple XCR2.0 Coated Stainless Steel Trumpets - VX6003 Brass Solenoid - 1/2" Airline
Model INF-1Tire Inflation Kit with Custom Luminscent Gauge Inflator and 24' Heavy Duty Hose with Quick Connects Attached.
MountingModel-specific brackets for air system, horn and horn support included
Upgrades AvailableAdd P/N 6890 Ultra BlastMaster Valve Upgrade Kit to make the horns even louder.
Weight65 lbs

Vehicle Fitment

Year(s)MakeModelSubmodelNotes
2021-2026Ram1500TRXTank: Below front skid plate Compressor: In Engine bay passenger side Horns: Along frame rail both sides.

Own this? Tell other truck owners how it fits and holds up. Write the first product review

Kleinn Automotive Accessories P/N TRX21-734

Onboard Air Systems

$1,499.95

ⓘ
Check if this fits your vehicle Select your vehicle

In Stock
2 from our supplier network

Free pickup at an H&H store Free — we'll bring it to your store, usually 1–3 days
Professional installation available
We install this. Labor runs $140/hour and the time varies by product, so call your local store for an exact quote.
800-953-7108
Nothing is charged for it today — your local H&H store works out the exact cost when they call to say your order has landed.
Ships Fast
Free store pickupReady at your local H&H
22 storesAcross the Southeast
Family-ownedServing trucks since 1987
Installation availableLabor from $140/hour — ask your store
Fitment guaranteeIf it doesn't fit, no restocking fee Details
Price matchFound it cheaper? Tell us before you buy Details
Warranty handled hereClaim it at the store, not by mail Details
4.8 out of 5 stars, 5,735 Google store reviews. These rate our stores, not this product. Read the reviews.
4.8
5,735 reviews
Store reviews on Google

Rated 4.8 across 24 stores

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.

Gary Holtzclaw
Oxford · 1 day ago

Bedliner installed, in and out less than 20 minutes

Don Traylor
Jonesboro · 1 day ago

Brian was so very professional and knowledgeable of the job he performed!!!

Ryan Spikes
Lilburn · 2 days ago

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.

Zachary Brooks
Marietta · 3 days ago

Great service as always. Needed something quickly, the store had it in stock and was able to pickup within minutes. Justin was helpful and very accommodating. Highly recommend!

Allen
Gainesville · 3 days ago

Just had Arcane Warrior roof rack installed. Unbelievably quick and convenient service. Blake and Garrett were readily available and exceptionally personable. Highly recommend them for any and all truck accessory recommendations, provisions and installations!

Michael Burgess
Cumming · 4 days ago

Good pricing, fast service. Quality products.

Ike Newton
Trussville · 4 days ago

Good experience. If you need truck accessories, these are the guys.

Eric Cohen
Madison · 4 days ago

⭐️⭐️⭐️⭐️⭐️ WOW – That’s How You Stand Behind Your Work H&H installed my airbags last year, and recently I ran into an issue where they stopped working. From the very first call, they were incredibly helpful and patient, walking me through troubleshooting over the phone trying to save me a trip. When we couldn’t get it resolved, I called first thing Monday morning and they had me scheduled right away. They got the truck in, diagnosed the issue, and replaced the parts — completely under warranty — no hassle, no excuses. A couple hours later I was back on the road. That’s rare service these days. Professional. Honest. Stand-up guys who truly stand behind their work. H&H is hands down the place to go for all your truck needs. 💪

John Nickell
Pensacola · 4 days ago

Very knowledgeable, great selection and fast install .

Reviews of H&H Truck & Outdoor stores, sourced from Google. They rate our stores and service, not this individual product.

Complete the job

Putco Blade LED Tailgate Light BarsPutcoPutco Blade LED Tailgate Light BarsFrom $53.99 · 135 optionsWeatherTech FloorLinerWeatherTechWeatherTech FloorLinerFrom $69.95 · 6073 optionsRanch Hand Legend Grille GuardRanch HandRanch Hand Legend Grille GuardFrom $693.95 · 57 optionsRough Country LED Light BarsRough CountryRough Country LED Light BarsFrom $49.95 · 208 options

Popular with the Ram 1500

CamLocker S71LPRLMB - Standard Crossover Tool Box, Matte Black, AluminumTool BoxCamLocker S71LPRLMB - Standard Crossover Tool Box, Matte Black, AluminumGWCM-S71LPRLMB$1,004.00 CURT 56070 - Wiring Connectors & Adapters, N/AHitch & Towing AccessoriesCURT 56070 - Wiring Connectors & Adapters, N/ABKDK-56070$86.95 Big Country 104870 - Fusion Series, Black, 4" FusionNerf Bars & Step BarsBig Country 104870 - Fusion Series, Black, 4" FusionCNNX-104870$118.68 UnderCover UX32008 - Ultra Flex, 5'7" Bed, BlackHard Folding Tonneau CoverUnderCover UX32008 - Ultra Flex, 5'7" Bed, BlackBKFX-UX32008$1,199.99