{"product_id":"cheemuii-dot-brass-air-fittings-kit-136-piece-push-to-connect-ca360-brass-dot-compliant","title":"CheeMuii DOT Brass Air Fittings Kit — 136‑Piece Push‑to‑Connect CA360 Brass, DOT‑Compliant","description":"\u003cstrong\u003eCheeMuii's 136‑piece DOT brass air fittings kit is a complete push‑to‑connect assortment for DOT air lines, offering durable CA360 brass fittings, swivel and elbow options, inflation valves, and installation accessories for brake and pneumatic systems.\u003c\/strong\u003e\n\n\u003cp\u003eThis kit gathers a broad selection of DOT‑compliant push lock fittings and related hardware so you can build, repair, or modify air brake and pneumatic lines without sourcing pieces individually. Manufactured from CA360 pure brass, the components meet D.O.T. FMVSS 571.106 and SAE J1131 guidance for air brake systems while delivering corrosion resistance and reliable sealing across common working temperatures and pressures.\u003c\/p\u003e\n\n\u003ch3\u003eWhat sizes and fitting types are included in the 136‑piece set?\u003c\/h3\u003e\n\u003cp\u003eThe assortment covers four common DOT tubing sizes — 5\/32\" (1\/8\"), 1\/4\", 3\/8\" and 1\/2\" — and provides multiple functional shapes to handle routing and connections. You get straight unions, tees, 90° elbows, 360° swivel elbows and a mix of push and NPT male fittings for threaded joins.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e12 DOT brass tee fittings for branch lines\u003c\/li\u003e\n  \u003cli\u003e34 straight unions for inline connections\u003c\/li\u003e\n  \u003cli\u003e36 straight push \u0026amp; NPT male fittings for hose to thread joins\u003c\/li\u003e\n  \u003cli\u003e18 90° push \u0026amp; NPT elbows for tight routing\u003c\/li\u003e\n  \u003cli\u003e12 360° swivel elbows to reduce hose twist\u003c\/li\u003e\n  \u003cli\u003e12 brass bushings and 6 couplings for thread size changes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and safe are the CheeMuii DOT fittings?\u003c\/h3\u003e\n\u003cp\u003eAll fittings are made from CA360 pure brass chosen for corrosion resistance, ductility at elevated temperatures and low permeability, which helps preserve air system integrity. The components comply with D.O.T. and SAE recommendations for air brake line hardware, and many pieces include pre‑applied sealant on NPT male threads to improve the initial seal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCA360 brass construction resists rust and wear\u003c\/li\u003e\n  \u003cli\u003eMeets D.O.T. FMVSS 571.106 and SAE J1131 guidance\u003c\/li\u003e\n  \u003cli\u003ePre‑applied NPT sealant reduces leak troubleshooting\u003c\/li\u003e\n  \u003cli\u003eDesigned for long service life under normal use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat pressure, temperature, and installation limits should I expect?\u003c\/h3\u003e\n\u003cp\u003eThe push‑lock DOT fittings are rated to operate from vacuum to 800 PSI and across wide temperatures. Operating range is listed from -40°F to +248°F (-40°C to +120°C); however, always cross‑check with the tubing manufacturer’s specifications for combined pressure and temperature performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePressure capability: vacuum to 800 PSI (application dependent)\u003c\/li\u003e\n  \u003cli\u003eTemperature range: -40°F to +248°F (-40°C to +120°C)\u003c\/li\u003e\n  \u003cli\u003ePush‑to‑connect installation for most lines — push in, secure\u003c\/li\u003e\n  \u003cli\u003eThreaded joints include pre‑applied sealant for better sealing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat extra tools and accessories come with the kit?\u003c\/h3\u003e\n\u003cp\u003eThe package includes several convenience items so you can complete installs without immediate additional purchases. A tube cutter and Teflon tape are included, plus inflation Schrader valves for direct air spring access and protective caps to keep contaminants out.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTube cutter for clean, square tubing cuts\u003c\/li\u003e\n  \u003cli\u003eTeflon tape for supplemental thread sealing\u003c\/li\u003e\n  \u003cli\u003eFour 1\/4\" brass Schrader inflation valves with caps (3\/4\" thread length)\u003c\/li\u003e\n  \u003cli\u003eProtective caps to keep dirt and mud away from valve stems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this kit best suited for? The CheeMuii 136‑piece DOT brass fittings kit is aimed at technicians, mechanics, fleet managers, and DIY vehicle enthusiasts who service air brake systems, air suspension components, or any DOT‑specified pneumatic lines. It's especially useful when you need a wide selection of push‑lock and NPT options on hand for troubleshooting, custom runs, or replacing worn fittings without repeated part orders.\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: Are these fittings compatible with standard DOT air brake tubing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit is designed for DOT air line sizes (5\/32\" to 1\/2\") and conforms to D.O.T. FMVSS 571.106 and SAE J1131 guidance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do the push‑lock fittings require thread sealant?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Push connections generally don’t need sealant; NPT male threads include pre‑applied sealant and Teflon tape is provided for extra security.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CheeMuii","offers":[{"title":"Default Title","offer_id":48082743951518,"sku":"B0FWC7SYCS","price":289.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/cheemuii-front-packaging-kit_2fd597d9-c5ac-42e7-8f84-6557b4bc0223.jpg?v=1785812840","url":"https:\/\/northtrailauto.ca\/products\/cheemuii-dot-brass-air-fittings-kit-136-piece-push-to-connect-ca360-brass-dot-compliant","provider":"North Trail Auto","version":"1.0","type":"link"}