{"product_id":"kerwinn-12v-air-compressor-for-trumpet-air-horns-150db-loud-180w-motor-black","title":"kerwinn 12V Air Compressor for Trumpet Air Horns — 150dB Loud, 180W Motor (Black)","description":"\u003cp\u003e\u003cstrong\u003ekerwinn 12V air compressor is a compact, heavy-duty pump designed to power replacement air-horn trumpets and deliver a reliably loud 150dB signal for vehicles and marine use.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis air compressor kit supplies pressurized air to trumpet-style horns on 12V systems, combining a 180W motor with a robust copper coil and a sealed head for dust and water resistance. Engineered for stable frequency and sustained output at 1–1.5 bar, it’s built to withstand roadside and marine conditions while fitting in tight engine bays or under seats. The unit is compatible with cars, vans, trucks, lorries, motorcycles and boats where a loud, direct air horn is required.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this compressor produce such a loud horn sound?\u003c\/h3\u003e\n\u003cp\u003eThe compressor pushes consistent air pressure into a horn trumpet, enabling clear, high-decibel blasts up to approximately 150dB when paired with an appropriate horn. Its 180W motor and copper-wound coil improve conductivity and operational stability, which helps maintain steady tone and frequency during repeated use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e180W motor power for rapid air delivery\u003c\/li\u003e\n  \u003cli\u003eDesigned output pressure: 1–1.5 bar\u003c\/li\u003e\n  \u003cli\u003eCopper coil for improved conductivity and longevity\u003c\/li\u003e\n  \u003cli\u003eStable frequency for consistent horn tone\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this compressor survive outdoor and marine conditions?\u003c\/h3\u003e\n\u003cp\u003eThe kerwinn compressor head includes a rubber cover that shields the pump from dust, water spray and light corrosion, making it suitable for harsh environments. While not an immersion-rated device, the dustproof and water-resistant features extend service life in damp engine compartments and on boats.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRubber-sealed head resists dust and spray\u003c\/li\u003e\n  \u003cli\u003eRust-resistant materials in exposed areas\u003c\/li\u003e\n  \u003cli\u003eCompact form factor that fits protected mounting locations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and what vehicles fit this kit?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward on any 12V vehicle with a compatible horn trumpet: secure mounting, wire to the 12V supply and connect the air line to the horn. The small footprint allows fitment under dashboards, inside engine bays or within locked compartments on cars, trucks, vans, lorries, motorcycles and boats.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for 12V electrical systems\u003c\/li\u003e\n  \u003cli\u003eCompact dimensions for tight mounting spaces\u003c\/li\u003e\n  \u003cli\u003eWorks with standard air-horn trumpets and fittings\u003c\/li\u003e\n  \u003cli\u003eIncludes basic mounting and connection compatibility (wiring and tubing not specialized)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat maintenance and reliability can I expect?\u003c\/h3\u003e\n\u003cp\u003eBuilt with a copper coil and quality components, the compressor is intended for long service life when mounted in a protected location and used within its rated pressure range. Basic upkeep—keeping connections dry and free of debris—will preserve performance and reduce the chance of failure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCopper coil process improves electrical performance and longevity\u003c\/li\u003e\n  \u003cli\u003eKeeps steady output at rated 1–1.5 bar pressure\u003c\/li\u003e\n  \u003cli\u003eSimple checks: secure electrical connections, inspect rubber cover and air fittings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The kerwinn 12V air compressor is suited for vehicle owners and fleet operators who need a compact, high-output replacement compressor for trumpet-style air horns. It fits drivers of cars, vans, trucks, lorries, motorcycles and small boats seeking a reliable, loud horn solution that installs in tight spaces and tolerates wet or dusty conditions. kerwinn also provides after-sales support to assist with installation questions or troubleshooting.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this compressor work with any 12V horn trumpet?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it is compatible with most trumpet-style air horns designed for 12V systems, provided fittings match the air line and mounting allows.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the compressor waterproof for boat use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It has a rubber-sealed head for dust and spray resistance, suitable for wet environments but not for continuous immersion.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"kerwinn","offers":[{"title":"Default Title","offer_id":48084512211102,"sku":"B0CF5DJ3G2","price":30.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/kerwinn-front-view-compressor.jpg?v=1785858202","url":"https:\/\/northtrailauto.ca\/products\/kerwinn-12v-air-compressor-for-trumpet-air-horns-150db-loud-180w-motor-black","provider":"North Trail Auto","version":"1.0","type":"link"}