{"product_id":"cheemuii-dot-air-line-fittings-kit-78-piece-ca360-brass-set-dot-rated-push-lock-npt-fittings","title":"CheeMuii DOT air line fittings kit — 78‑Piece CA360 brass set, DOT‑rated push‑lock \u0026 NPT fittings","description":"\u003cp\u003e\u003cstrong\u003eCheeMuii 78-piece DOT brass air line fittings kit supplies a complete assortment of CA360 brass push-lock and NPT air fittings plus Schrader inflation valves and tools for dependable air brake and suspension repairs.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit gathers the common DOT air line components technicians and vehicle owners reach for when repairing or routing air systems on trucks, trailers and RVs. All metal parts are manufactured from CA360 pure brass and are designed to meet D.O.T. FMVSS 571.106 and SAE J1131 requirements for air brake system compatibility. The set includes both push-to-connect and threaded NPT pieces, pre-applied thread sealant, and a couple of hand tools so you can diagnose and fix leaks quickly.\u003c\/p\u003e\n\n\u003ch3\u003eWhat pieces are included and how is the kit organized?\u003c\/h3\u003e\n\u003cp\u003eThe CheeMuii kit contains 78 total components split across common fitting types and sizes for flexibility during repairs and custom routing. Counts and part styles are arranged to cover straight runs, tees and elbow connections plus inflation points and a couple of service tools.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e18 brass tube tee fittings for 1\/8\"–1\/2\" applications\u003c\/li\u003e\n  \u003cli\u003e28 straight union connectors for inline joining\u003c\/li\u003e\n  \u003cli\u003e14 straight push-connect with NPT threads and 14 90° elbow NPT fittings\u003c\/li\u003e\n  \u003cli\u003e2 brass 1\/4\" Schrader inflation valves with protective caps\u003c\/li\u003e\n  \u003cli\u003e2 tube cutters and 2 rolls of Teflon sealing tape included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these fittings DOT-rated and what materials do they use?\u003c\/h3\u003e\n\u003cp\u003eYes — CheeMuii DOT air fittings are made from CA360 pure brass and engineered to satisfy DOT and SAE guidelines relevant to air brake systems. That metallurgy offers corrosion resistance, reliable ductility at elevated temperatures, and low air permeability compared with lower-grade alloys.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCA360 pure brass construction for long service life\u003c\/li\u003e\n  \u003cli\u003eManufactured to meet D.O.T. FMVSS 571.106 and SAE J1131 standards\u003c\/li\u003e\n  \u003cli\u003eResists corrosion and withstands repeated exposure to road conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat operating pressures and temperatures can these fittings handle?\u003c\/h3\u003e\n\u003cp\u003eThe brass components are suitable for a wide range of operating conditions typically encountered in vehicle air systems, from vacuum up to high pressure. Always confirm limits with your tubing manufacturer, but this kit is built to tolerate demanding environments for trucks and heavy equipment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorking pressure from vacuum up to 800 PSI\u003c\/li\u003e\n  \u003cli\u003eTemperature range −40°F to +248°F (−40°C to +120°C)\u003c\/li\u003e\n  \u003cli\u003ePre-applied thread sealant on NPT male connectors for improved sealing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and where will I use these fittings?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: push-lock connections seat quickly and the NPT pieces thread in with pre-applied sealant to minimize leaks. The included tube cutters and Teflon tape make on-vehicle repairs and shop installs faster and cleaner.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePush-to-connect design for tool-free seating on compatible tubing\u003c\/li\u003e\n  \u003cli\u003eNPT threads with factory-applied sealant reduce leak troubleshooting\u003c\/li\u003e\n  \u003cli\u003eCommonly used on semi trucks, trailers, RV air suspension and air brake lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The CheeMuii 78-piece DOT air line fittings kit is aimed at professional mechanics, fleet maintenance crews and do-it-yourself vehicle owners who service semi trucks, trailers and RVs. If you need a comprehensive set of durable brass push-lock and threaded fittings, plus inflation valves and basic tools to keep air systems sealed and serviceable, this kit covers most everyday needs without sourcing parts individually.\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: Do these fittings meet DOT air brake standards?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the CheeMuii brass fittings are made from CA360 brass and conform to D.O.T. FMVSS 571.106 and SAE J1131 specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What sizes and tools are included in the 78-piece kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The kit includes 1\/8\"–1\/2\" fittings, 2 Schrader valves, 2 tube cutters and 2 rolls of Teflon tape for installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CheeMuii","offers":[{"title":"Default Title","offer_id":48080762896542,"sku":"B0DPZ3T45H","price":184.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/cheemuii-front-of-packaging.jpg?v=1785786267","url":"https:\/\/northtrailauto.ca\/products\/cheemuii-dot-air-line-fittings-kit-78-piece-ca360-brass-set-dot-rated-push-lock-npt-fittings","provider":"North Trail Auto","version":"1.0","type":"link"}