{"id":944,"date":"2026-10-11T13:49:32","date_gmt":"2026-10-11T13:49:32","guid":{"rendered":"https:\/\/www.jlinlin.com\/?post_type=product&p=944"},"modified":"2026-10-12T02:40:51","modified_gmt":"2026-10-12T02:40:51","slug":"train-horn-kit-12v-4-trumpet-air-horn-kit-with-3l-0-8-gal-air-tank-90-120-psi-air-compressor-loud-truck-air-horn-for-pickup-suv-rv-van-boat","status":"publish","type":"product","link":"https:\/\/www.jlinlin.com\/index.php\/product\/train-horn-kit-12v-4-trumpet-air-horn-kit-with-3l-0-8-gal-air-tank-90-120-psi-air-compressor-loud-truck-air-horn-for-pickup-suv-rv-van-boat\/","title":{"rendered":"Train Horn Kit, 12V 4 Trumpet Air Horn Kit with 3L 0.8 Gal Air Tank & 90-120 PSI Air Compressor, Loud Truck Air Horn for Pickup SUV RV Van Boat"},"content":{"rendered":"

Specifications<\/h2>\n<\/p>\n

Product Details<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Specification<\/strong><\/td>\nDetails<\/strong><\/td>\n<\/tr>\n<\/thead>\n
Brand<\/strong><\/td>\n<\/td>\n<\/tr>\n
Product Grade<\/strong><\/td>\nPerformance Accessory<\/td>\n<\/tr>\n
Voltage<\/strong><\/td>\n12V DC<\/td>\n<\/tr>\n
Horn Type<\/strong><\/td>\nParallel 4 Trumpet Inline\/Stacked Train Horn<\/td>\n<\/tr>\n
Trumpet Design<\/strong><\/td>\nStraight parallel inline layout\/Compact stacked layout<\/td>\n<\/tr>\n
Sound Output<\/strong><\/td>\n135 dB<\/td>\n<\/tr>\n
Compressor Pressure Range<\/strong><\/td>\n90-120 PSI<\/td>\n<\/tr>\n
Air Tank Capacity<\/strong><\/td>\n3L \/ 0.8 Gal<\/td>\n<\/tr>\n
Auto Pressure Control<\/strong><\/td>\nCompressor automatically starts\/stops to maintain 90-120 PSI stable pressure<\/td>\n<\/tr>\n
Exterior Material<\/strong><\/td>\nZinc Alloy, Stainless Steel<\/td>\n<\/tr>\n
Connection Type<\/strong><\/td>\nCopper Tube<\/td>\n<\/tr>\n
Fit Type<\/strong><\/td>\nUniversal Fit<\/td>\n<\/tr>\n
Vehicle Compatibility<\/strong><\/td>\nPickup Truck, SUV, RV, Van, Boat, Off-Road Vehicle, Show Truck<\/td>\n<\/tr>\n
Mounting Locations<\/strong><\/td>\nFrame rail, underbody space, truck bed underside, rear axle area<\/td>\n<\/tr>\n
Included Components<\/strong><\/td>\nParallel 4 Trumpet Air Horn\/Compact stacked 4 Trumpet Air Horn, 3L Air Tank, 90-120 PSI Air Compressor, Pressure Gauge, Air Hose, Fittings, Mounting Hardware<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Description<\/h2>\n<\/p>\n

\"\"<\/p>\n

Complete 12V train horn kit with parallel inline\/stacked 4 trumpet air horn, 3L\/0.8 gal air tank, 90-120 PSI automatic air compressor, pressure gauge, air hose, fittings, and mounting hardware. All-in-one package \u2014 no separate air supply purchases needed. Produces 135 dB deep train-style sound for trucks, pickups, SUVs, RVs, vans, boats, and custom builds.<\/p>\n

\"\"<\/p>\n

12V 4 Trumpet Air Horn Kit Features<\/h2>\n
    \n
  • \nComplete All-in-One Train Horn Kit:<\/strong> 12V train horn kit includes a parallel 4 trumpet air horn, 3L\/0.8 gal air tank, 90-120 PSI air compressor, pressure gauge, air hose, fittings, and mounting hardware. No need to purchase core air supply parts separately \u2014 everything arrives in one box for a straightforward install.<\/li>\n
  • \n135 dB Loud Train-Style Sound:<\/strong> The 4 trumpet train horn produces a deep, loud train-style sound up to 135 dB, helping alert nearby vehicles, pedestrians, and animals. A strong upgrade for weak factory car horns, truck horns, or standard air horns when maximum audible warning capability is needed.<\/li>\n
  • \n90-120 PSI Auto Pressure Control System:<\/strong> The 12V air compressor automatically starts when pressure drops and stops when the tank reaches the set 90-120 PSI range, helping maintain stable air pressure and consistent horn output. Built-in pressure gauge provides real-time air tank status monitoring.<\/li>\n
  • \nDurable Construction & Installation Notes:<\/strong> Built with a sturdy 3L\/0.8 gal air tank, pressure gauge, and copper tube connections for enhanced durability and high-pressure resistance. Common mounting locations include frame rail, underbody space, truck bed underside, or rear axle area. Professional installation is recommended for wiring, air line connection, and secure fixed mounting.<\/li>\n<\/ul>\n

    \"\"<\/p>\n

    Complete All-in-One Train Horn Kit with Air Tank & Compressor<\/h2>\n

    The 12V inline\/stacked<\/span><\/span> 4 trumpet train horn kit is a truly complete package \u2014 no separate air supply purchases needed. The kit includes the parallel 4 trumpet air horn, a 3L\/0.8 gal air tank, a 90-120 PSI air compressor, pressure gauge, air hose, fittings, and mounting hardware, all in one box. This all-in-one design simplifies installation and eliminates the guesswork of sourcing compatible air system components. Compared with horn-only kits that require a separate compressor and tank investment, this complete solution saves time and ensures fully integrated, plug-and-play compatibility right out of the box.<\/p>\n

    \"\"<\/p>\n

    135 dB Train-Style Sound for Maximum Road Alert<\/h2>\n

    Rated at 135 dB, the 4 trumpet train horn produces a deep, resonating train-style sound that significantly outperforms factory horns. The four trumpets work together to create a rich, layered tone that commands attention and alerts nearby vehicles, pedestrians, and animals \u2014 even in noisy highway traffic, construction zones, or busy urban environments. Whether you are driving a pickup, SUV, RV, boat, or custom show vehicle, this loud air horn provides the road presence needed for both safety and style, making it a compelling upgrade over weak stock horns.<\/p>\n

    Zinc Alloy & Stainless Steel Durability with Copper Tube Connections<\/h2>\n

    Constructed with zinc alloy trumpet bodies and stainless steel components, the train horn kit is built for long-term durability and corrosion resistance in harsh under-vehicle environments. Copper tube connections enhance high-pressure resistance and ensure leak-free air delivery between the compressor, tank, and horn. The sturdy 3L air tank is designed to withstand vibration and thermal cycling. Recommended mounting locations include the frame rail, underbody space, truck bed underside, or rear axle area. For optimal longevity, install horn openings downward or sideways to help reduce water and debris entry.<\/p>\n

    \"\"<\/p>\n

    Package Contents<\/h2>\n
      \n
    • 1 x Parallel 4 Trumpet Inline\/Stacked<\/span><\/span> Air Horn<\/li>\n
    • 1 x 3L \/ 0.8 Gal Air Tank<\/li>\n
    • 1 x 90-120 PSI Air Compressor<\/li>\n
    • 1 x Pressure Gauge<\/li>\n
    • 1 x Air Hose<\/li>\n
    • 1 x Fittings Kit<\/li>\n
    • 1 x Copper Tube<\/li>\n
    • 1 x Mounting Hardware Kit<\/li>\n<\/ul>\n

      \"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

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