{"product_id":"sae-j844-3-8ft-x-100ft-green-nylon-air-brake-tubing-dot-approved","title":"SAE J844 3\/8ft x 100ft Green Nylon Air Brake Tubing - DOT Approved","description":"\u003cp\u003eIn this review of the SAE J844 3\/8' x 100' green nylon air brake tubing, the bottom line is simple: this is a practical, DOT-approved replacement line for trailers and commercial brake systems where a durable, cold-flexible hose is required. The reviewer found it best for mechanics, fleet managers, and DIY trailer owners who need a long run of compliant tubing that stands up to temperature extremes and roadside exposure. The single biggest reason to buy is its combination of regulatory compliance and wide operating temperature range, which makes it reliable in real-world service.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDOT Compliant:\u003c\/strong\u003e Meets or exceeds SAE J844 and FMVSS No. 106 standards so it is suitable for air brake applications that require regulatory conformity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize and length:\u003c\/strong\u003e Nominal 3\/8' outer diameter with a 100' coil provides a long continuous run for trailer and fleet projects without frequent splices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide temperature range:\u003c\/strong\u003e Rated for use from -40 F to 200 F, offering cold weather flexibility and reliable performance across seasonal extremes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical and UV resistance:\u003c\/strong\u003e Resists gasoline, diesel, cleaning chemicals, and UV exposure to reduce premature wear in roadside conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for compression fittings:\u003c\/strong\u003e Intended for use with standard compression fittings and rated to operate at up to 150 PSI in air brake systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis tubing is aimed at trailer owners, commercial fleet maintenance crews, and independent mechanics who need a DOT-approved, long-length nylon line for air brake systems. It suits installations where a continuous 100' length reduces joins and where cold-weather flexibility is important for reliable braking performance.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for applications that require a fuel line or very soft, highly flexible line for tight routing; the tubing is not made for fuel and several users find the material stiffer than some alternatives, which can make very tight bends more difficult to manage.\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\u003eDOT and SAE J844 compliance gives peace of mind for brake system use.\u003c\/li\u003e\n\u003cli\u003eLong 100' coil reduces the need for splices on trailers and fleet installs.\u003c\/li\u003e\n\u003cli\u003eBroad -40 F to 200 F range preserves flexibility and performance across seasons.\u003c\/li\u003e\n\u003cli\u003eResistant to UV, road debris, and common automotive chemicals for longer service life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial can be relatively stiff, making routing in tight spaces more challenging for some users.\u003c\/li\u003e\n\u003cli\u003eNot suitable for fuel applications; intended only for pneumatic air brake use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSAE J844 nylon air brake tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal O.D.\u003c\/td\u003e\n\u003ctd\u003e3\/8' (nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Wall\u003c\/td\u003e\n\u003ctd\u003e0.062'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e100' coil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Pressure\u003c\/td\u003e\n\u003ctd\u003eUp to 150 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-40 F to 200 F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eGreen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor anyone fitting or repairing trailer air brake lines who needs a long, DOT-compliant run, this 3\/8' x 100' green nylon tubing is a sensible choice that balances durability, regulatory compliance, and temperature resilience. It represents good value for fleet maintenance or DIY brake work, though installers should be prepared for a stiffer feel when routing tight bends.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this tubing DOT approved for air brake systems?\u003c\/strong\u003e\u003cbr\u003eYes. It meets or exceeds SAE J844 and FMVSS No. 106 requirements and is identified for air brake use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this tubing be used for fuel lines?\u003c\/strong\u003e\u003cbr\u003eNo. The tubing is resistant to gasoline and diesel exposure but is not made or rated for use as a fuel line.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow flexible is the tubing in cold weather?\u003c\/strong\u003e\u003cbr\u003eThe tubing is rated to -40 F and retains cold weather flexibility, though some users report it feels stiff compared with softer hoses.\u003c\/p\u003e","brand":"Mytee Products","offers":[{"title":"Default Title","offer_id":48203616059611,"sku":"B07DTMYZWS","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/7132voW7nTL._AC_SL1500.jpg?v=1770231966","url":"https:\/\/gearmusthave.com\/products\/sae-j844-3-8ft-x-100ft-green-nylon-air-brake-tubing-dot-approved","provider":"GearMustHave","version":"1.0","type":"link"}