{"product_id":"kleinn-air-horns-gmhd20-734","title":"Kleinn Air Horns GMHD20-734 - Kleinn 20-26 Chevrolet Silverado 2500 HD\/ 3500 HD Onboard Air System w\/ Model 730 Horns","description":"\u003cp\u003eKleinn Air Horns GMHD20-734 - Kleinn 20-26 Chevrolet Silverado 2500 HD\/ 3500 HD Onboard Air System w\/ Model 730 Horns\u003c\/p\u003e\u003cp\u003eKleinn Bolt-on Steel Train Horns \u0026amp; Onboard Air Kit - 2020-2026 GM 2500\/3500HD\u003c\/p\u003e\u003cp\u003eKleinn Bolt-on Steel Train Horn \u0026amp; Onboard Air Kit - 2020-2026 2500, 3500 Silverado, Sierra (Running boards that use 4 mounting locations on frame rail require removal of 1 support)\u003c\/p\u003e\u003cp\u003eDominate the road with the ultimate train horn and onboard air system. If you are looking for the loudest train horn for your truck alongside an onboard air system that delivers extreme power and unmatched reliability, this setup is built for you. This system is not for the timid, it is engineered specifically for drivers who want to command attention, turn heads, and run the most powerful train horn kit on the road. This direct-fit, 100 percent bolt-on train horn and onboard air system is engineered for maximum performance with zero hassle, requiring no drilling and no fabricating for pure, unapologetic power.At the heart of this system is an exclusive 100 percent duty-cycle waterproof air compressor, paired with a high-capacity, anti-corrosion-coated air tank built for long-term durability. When you hit the switch, the XCR 2.0 black-coated Demon stainless steel train horns unleash a blast so loud and aggressive it rivals a real locomotive, making it one of the loudest train horn kits for trucks on the market.True direct-fit installation means every component mounts cleanly under your truck using precision-engineered, powder-coated brackets that bolt directly to factory locations. This guarantees no drilling, no guesswork, no cutting, and an OEM-clean fitment for a stealthy, rock-solid installation that hits like a freight train.Built for long-term performance, every hose, fitting, and accessory is designed for long-term punishment and minimal maintenance. This complete kit includes a heavy-duty air hose, quick-connect fittings, a glow-in-the-dark inflator gauge, and all wiring and hardware needed for installation. For those who want even more power, you can add the BlastMaster Upgrade Kit (Model 6890) for a 30 to 40 percent increase in volume. This upgrade gives each horn its own dedicated heavy-duty brass solenoid and half-inch airline for maximum airflow and maximum output, making your setup one of the loudest aftermarket train horns available.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eModel 730 Horn - Three Trumpets. 18.25\",  14.75\", 10\" - XCR2.0 Coated Spun Steel Trumpets\u003c\/li\u003e\n\u003cli\u003eModel 6450RC Waterproof Air Compressor Max PSI: (200)\u003c\/li\u003e\n\u003cli\u003eModel 6353RT Air Tank Capacity: 3 Gallon 9 - 1\/4\" NPT ports\u003c\/li\u003e\n\u003cli\u003eEstimated Install Time 6-8 Hours\u003c\/li\u003e\n\u003cli\u003eCustom Powder Coated Mounting Brackets\u003c\/li\u003e\n\u003cli\u003eTire Inflator with Digital Gauge and Pressure Release, Air Hose, Remote Quick Connect and Storage Bag\u003c\/li\u003e\n\u003cli\u003eMounting - Horns:(2) Inside cavity of bedside steps, (1) between fuel tank and exhaust system. Tank: Mid driver side frame rail. Compressor:Mid Passenger side frame rail\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eUpgrades Available\u003c\/strong\u003e: \u003cspan\u003eUltra BlastMaster Upgrade kit 6890, Model 333 Sniper Remote Control kit, HCL-3 Horn Covers\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMounting\u003c\/strong\u003e: \u003cspan\u003eCustom Powder Coated Steel Mounting Brackets; Made in the USA!\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMounting Location\u003c\/strong\u003e: \u003cspan\u003eMounting - Horns:(2) Inside cavity of bedside steps, (1) between fuel tank and exhaust system. Tank: Mid driver side frame rail. Compressor:Mid Passenger side frame rail\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eModel 6450RC\u003c\/strong\u003e: \u003cspan\u003eHeavy-Duty Waterproof Air Compressor 200 PSI \/ 100% Duty Cycle\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eModel 6353RT\u003c\/strong\u003e: \u003cspan\u003e3-Gallon Air Tank with Cortec Interior Anti-Corrosion Coating\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eModel 730\u003c\/strong\u003e: \u003cspan\u003eDemon Black Stainless Steel Triple Train Horn - Produces a thundering 157.8 dB Blast\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eModel VX-6003\u003c\/strong\u003e: \u003cspan\u003e(1) Heavy-Duty Brass Air Solenoid (12-Volt) - 3\/8\" inlet\/outlet\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eAirline Size\u003c\/strong\u003e: \u003cspan\u003e1\/2\" High-Pressure Airline\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eHorn Material\u003c\/strong\u003e: \u003cspan\u003eStainless-Steel Trumpets with Zinc-Alloy Metal Base\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eHorn Lengths\u003c\/strong\u003e: \u003cspan\u003eEach Horn Measurement: 21.75” Lg. – 17.75” Med. - 13.5” Sm.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eModel INF-1\u003c\/strong\u003e: \u003cspan\u003eTire Inflation Kit- 24' Heavy-Duty Hose w\/ Quick-connect couplers - Glow Face Gauge Inflator\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eModel 1302\u003c\/strong\u003e: \u003cspan\u003eQuick connect relocation kit - place air source wherever you wish\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Kleinn Air Horns","offers":[{"title":"Default Title","offer_id":47335310295178,"sku":"FMLC-GMHD20-734","price":1299.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/0619\/2778\/files\/0_gmhd20mainimageredtruck2026_copy_normalized.jpg?v=1782460970","url":"https:\/\/www.onlyinstock.com\/products\/kleinn-air-horns-gmhd20-734","provider":"Only In Stock","version":"1.0","type":"link"}