{"product_id":"power-tank-3an-adapter-fittings-for-arb-steel-line-installs","title":"Power Tank -3AN Adapter Fittings for ARB Steel Line Installs","description":"\u003cp class=\"product-lead\"\u003ePower Tank -3AN Adapter Fittings are thread adapters designed for ARB air locker owners replacing the factory blue 5 mm or 6 mm plastic air line with steel line terminated in -3AN ends. Three variants cover the three distinct port types in a typical ARB system: the axle housing bulkhead fitting, the solenoid outlet port, and the regulator outlet port, pneumatic toggle switches, or pipe-thread air manifold ports.\u003c\/p\u003e\n\n\u003ch2\u003eRight Thread for Every Port\u003c\/h2\u003e\n\u003cp\u003eAn ARB air locker system routes air through several different port types, each with its own thread standard. Using the wrong adapter risks a leak or a cross-threaded fitting that damages the port. The 3\/8 x 24 variant threads into the brass axle housing bulkhead fitting, the 1\/8 NPT variant handles the regulator outlet, toggle switches, and any manifold with standard pipe thread ports, and the 1\/8 BSP variant seats at the solenoid outlet. Matching the correct adapter to each port means the steel line seats cleanly and holds pressure without improvised solutions.\u003c\/p\u003e\n\n\u003ch2\u003eO-Ring Seal on the BSP Variant\u003c\/h2\u003e\n\u003cp\u003eThe 1\/8 BSP adapter uses a parallel (straight) thread, designated 8BSP-P, with an O-ring rather than a tapered thread seal. That O-ring creates a face seal at the solenoid outlet port, which is the correct sealing method for a parallel BSP port. Installing a tapered fitting in a parallel port, or omitting the O-ring, produces a leak path; this adapter is built to match the port geometry as ARB designed it.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3\/8 x 24 to -3AN:\u003c\/strong\u003e threads into the brass axle housing bulkhead fitting for steel line connection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1\/8 NPT to -3AN:\u003c\/strong\u003e fits the regulator outlet port, pneumatic toggle switches, and standard pipe-thread air manifold ports\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1\/8 BSP to -3AN:\u003c\/strong\u003e seats at the solenoid outlet port using a parallel (straight) 8BSP-P thread with O-ring seal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThree-variant coverage:\u003c\/strong\u003e each adapter addresses a specific port type in a typical ARB air locker plumbing layout\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eVariant\u003c\/th\u003e\n      \u003cth\u003eThread Configuration\u003c\/th\u003e\n      \u003cth\u003ePort Application\u003c\/th\u003e\n      \u003cth\u003eSeal Type\u003c\/th\u003e\n      \u003cth\u003eWeight\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e3\/8 x 24 to -3AN\u003c\/td\u003e\n      \u003ctd\u003e3\/8 x 24 to -3AN\u003c\/td\u003e\n      \u003ctd\u003eBrass axle housing bulkhead fitting\u003c\/td\u003e\n      \u003ctd\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.1 lb\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e1\/8 NPT to -3AN\u003c\/td\u003e\n      \u003ctd\u003e1\/8 NPT to -3AN\u003c\/td\u003e\n      \u003ctd\u003eRegulator outlet port, pneumatic toggle switches, pipe-thread air manifold ports\u003c\/td\u003e\n      \u003ctd\u003e\u003c\/td\u003e\n      \u003ctd\u003e0.1 lb\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e1\/8 BSP to -3AN\u003c\/td\u003e\n      \u003ctd\u003e1\/8 BSP-P (parallel) to -3AN\u003c\/td\u003e\n      \u003ctd\u003eSolenoid outlet port\u003c\/td\u003e\n      \u003ctd\u003eO-ring face seal\u003c\/td\u003e\n      \u003ctd\u003e0.1 lb\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWho This Is For and Isn't\u003c\/h2\u003e\n\u003cp class=\"product-fit-yes\"\u003eThese adapters suit ARB air locker owners who are upgrading from the factory blue 5 mm or 6 mm plastic air line to steel line with -3AN ends and need the correct thread interface at each port in the system.\u003c\/p\u003e\n\u003cp class=\"product-fit-no\"\u003eThese adapters are not compatible with the original ARB blue plastic air line and are not interchangeable between port types. Each variant fits only its specific port. They are not intended for air systems outside of ARB air locker plumbing.\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003ch3 class=\"product-faq-q\"\u003eWhich adapter fits the axle housing bulkhead fitting?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe 3\/8 x 24 to -3AN adapter is the correct choice for the brass axle housing bulkhead fitting in an ARB air locker system. It threads directly into that fitting to accept a steel line with a -3AN end.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eWhich adapter do I need at the solenoid outlet port?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe 1\/8 BSP to -3AN adapter fits the solenoid outlet port. It uses a parallel (straight) 8BSP-P thread with an O-ring face seal, which matches the port geometry at the ARB solenoid outlet.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eWhat ports does the 1\/8 NPT adapter cover?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe 1\/8 NPT to -3AN adapter works at the regulator outlet port, pneumatic toggle switches, and any standard air manifold that uses pipe thread ports.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eCan these adapters be used with the original ARB blue plastic air line?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eNo. These -3AN adapter fittings are designed specifically for steel line with -3AN ends. They are not compatible with the original ARB blue 5 mm or 6 mm plastic air line, which uses its own push-to-connect or barb fittings.\u003c\/p\u003e","brand":"Power Tank","offers":[{"title":"3\/8 x 24 to -3AN","offer_id":50622961582150,"sku":"ARL-8824","price":9.99,"currency_code":"USD","in_stock":true},{"title":"1\/8 BSP to -3AN","offer_id":50622961614918,"sku":"ARL-8BSP","price":9.99,"currency_code":"USD","in_stock":true},{"title":"1\/8 NPT to -3AN","offer_id":50622961647686,"sku":"ARL-8NPT","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0691\/2203\/1686\/files\/ARB-8824_HERO.jpg?v=1791941643","url":"https:\/\/terrainvault.com\/products\/power-tank-3an-adapter-fittings-for-arb-steel-line-installs","provider":"TerrainVault","version":"1.0","type":"link"}