{"product_id":"dot-air-line-fittings-and-hose-kit-43-pcs-durable-dot-brake-grade","title":"DOT Air Line Fittings and Hose Kit 43 Pcs - Durable DOT Brake Grade","description":"\u003cp\u003eOur review of this 43-piece DOT air line fittings and hose kit finds it best suited for DIY mechanics, truck and RV owners, and small shops needing DOT-compliant replacement lines and connectors. The single biggest reason to buy is the combination of DOT-approved CA360 brass fittings and PA12 nylon DOT air hose that provide corrosion resistance and high-temperature durability for air suspension and brake-related repairs. The set bundles lengths of 50 ft of 1\/4' hose and 32.8 ft of 3\/8' hose with a wide variety of fittings and a tube cutter for immediate installation.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e Includes 50 ft of 1\/4' DOT hose and 32.8 ft of 3\/8' DOT hose so most runs for trucks, trailers, and RVs can be completed without extra purchases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDOT-grade brass fittings:\u003c\/strong\u003e CA360 brass fittings meet D.O.T. FMVSS 571.106 and SAE J1131 requirements, offering corrosion resistance and low permeability for long service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile connector selection:\u003c\/strong\u003e The kit supplies tee fittings, straight unions, straight push connectors, and 90 elbows to handle common routing and repair scenarios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInflation points included:\u003c\/strong\u003e Two brass 1\/4' Schrader inflation valves with protective caps provide convenient manual inflation points for air springs or suspension bags.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable PA12 hose:\u003c\/strong\u003e Reinforced Polyamide 12 tubing meets DOT and SAE J844 specs, tolerates -40F to +248F and higher working pressures up to recommended limits for 1\/4' and 3\/8' lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is ideal for vehicle owners who need DOT-compliant replacement air lines and fittings for air suspension, brake lines, trailer hookups, or RV systems and want enough lengths and connectors to complete a job without sourcing parts individually. Small repair shops and mobile technicians will value the variety of push-to-connect and NPT-thread fittings included.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for users who require metric-specific or specialty fittings not listed in the kit, or for high-volume shops that prefer bulk hose spools and specialized fittings by the piece. Also, installers who demand factory-matched crimps and permanent fittings for critical brake circuits should verify application requirements before substituting push-to-connect parts.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-quality CA360 brass fittings provide durability and corrosion resistance for DOT applications.\u003c\/li\u003e\n\u003cli\u003eGenerous hose lengths of 50 ft (1\/4') and 32.8 ft (3\/8') cover many repair needs without extra ordering.\u003c\/li\u003e\n\u003cli\u003eWide assortment of connector types and a tube cutter let users cut and join lines on site.\u003c\/li\u003e\n\u003cli\u003ePA12 tubing handles a broad temperature range and resists wear and impact.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report occasional leaks with push fittings, so careful installation and leak checking are required.\u003c\/li\u003e\n\u003cli\u003eThe kit may include more general-purpose fittings than a specialist installer needs for high-volume or niche applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded hose\u003c\/td\u003e\n\u003ctd\u003e50 ft 1\/4' DOT and 32.8 ft 3\/8' DOT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitting material\u003c\/td\u003e\n\u003ctd\u003eCA360 brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHose material\u003c\/td\u003e\n\u003ctd\u003ePA12 Polyamide 12 nylon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInflation valve\u003c\/td\u003e\n\u003ctd\u003eTwo brass 1\/4' Schrader valves with caps (thread length 3\/4')\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector types\u003c\/td\u003e\n\u003ctd\u003eTee, straight union, straight push NPT, 90 elbow NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking pressures\u003c\/td\u003e\n\u003ctd\u003e1\/4' up to 500 PSI; 3\/8' up to 800 PSI (manufacturer guidance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThis DOT air line and fittings kit is a practical, cost-effective choice for DIYers, RV and truck owners, and small shops that need DOT-approved hoses and a broad selection of brass connectors. It delivers good value through DOT-compliant materials and ample hose length, though installers should perform careful fitting installation and pressure testing to avoid the occasional leak reported by some users.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre the fittings DOT compliant?\u003c\/strong\u003e\u003cbr\u003eYes, the brass CA360 fittings meet D.O.T. FMVSS 571.106 and SAE J1131 requirements according to the product details.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat temperatures can the hose handle?\u003c\/strong\u003e\u003cbr\u003eThe PA12 DOT hose is rated to operate from -40F to +248F, suitable for typical vehicle environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the kit include a cutter?\u003c\/strong\u003e\u003cbr\u003eYes, a tube cutter is included so hoses can be cut to length on site.\u003c\/p\u003e","brand":"CheeMuii","offers":[{"title":"Default Title","offer_id":48231048052955,"sku":"B0DCJK8ZQW","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81uGq3HCRwL._AC_SL1500.jpg?v=1770826973","url":"https:\/\/gearmusthave.com\/products\/dot-air-line-fittings-and-hose-kit-43-pcs-durable-dot-brake-grade","provider":"GearMustHave","version":"1.0","type":"link"}