{"product_id":"ict-billet-transmission-adapter-fittings-6an-to-1-4-npsm-pair-aluminum-o-rings","title":"ICT Billet Transmission Adapter Fittings -6AN to 1\/4\" NPSM Pair, Aluminum, O-Rings","description":"\u003cp\u003e\u003cstrong\u003eThese ICT Billet aluminum adapter fittings convert -6AN flare lines to 1\/4\" NPSM ports, letting you build custom transmission fluid lines for a wide range of GM and Ford transmissions.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen you need to adapt aftermarket -AN hoses to factory transmission case ports, these billet adapter fittings provide a compact, durable solution. Machined from USA-produced aerospace-grade aluminum in Wichita, Kansas, the pair includes o-rings and fits many popular transmissions through 2007. They allow you to run custom feed or return lines to and from TH350, TH400, 4L60E, 700R4, 200-4R, TR6060, AOD, 4R100, 4R70W and C5 transmissions.\u003c\/p\u003e\n\n\u003ch3\u003eWill these adapters work with my transmission model?\u003c\/h3\u003e\n\u003cp\u003eThese fittings are designed to interface with common GM and Ford transmission case ports using 1\/4\" NPSM threads and accept -6AN female hose ends. They are compatible with many factory cases up to 2007 but always verify your case port thread type before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits TH350, TH400, 4L60E, 700R4, 200-4R, TR6060\u003c\/li\u003e\n  \u003cli\u003eAlso fits Ford AOD, 4R100, 4R70W and C5 transmissions\u003c\/li\u003e\n  \u003cli\u003eDesigned for 1\/4\" NPSM case ports and -6AN lines\u003c\/li\u003e\n  \u003cli\u003eCheck case threads if unsure; OEM cases vary by year\/model\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these fittings make custom -AN transmission lines simpler?\u003c\/h3\u003e\n\u003cp\u003eInstead of modifying factory ports or running adaptors that add length and leak points, these billet adapters provide a direct, secure transition from the transmission case to -6AN hose assemblies. They come with o-rings for a reliable seal and a compact profile to keep routing neat.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect -6AN to 1\/4\" NPSM interface minimizes extra adapters\u003c\/li\u003e\n  \u003cli\u003eIncludes o-rings for improved sealing at the case port\u003c\/li\u003e\n  \u003cli\u003eCompact length helps with tight engine bay routing\u003c\/li\u003e\n  \u003cli\u003eBillet aluminum resists corrosion and heat for longevity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and manufacturing standards are used?\u003c\/h3\u003e\n\u003cp\u003eICT Billet machines these adapters from aerospace-grade, USA-produced billet aluminum in Wichita, Kansas. The material choice and CNC machining process ensure consistent threads, concentric bores, and strong structural integrity for repeated use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAerospace-grade billet aluminum for strength and weight savings\u003c\/li\u003e\n  \u003cli\u003ePrecision CNC machining for accurate threads and sealing surfaces\u003c\/li\u003e\n  \u003cli\u003eMade in the USA (Wichita, Kansas) with quality controls\u003c\/li\u003e\n  \u003cli\u003eIncludes o-rings optimized for transmission fluid environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install these adapters and what should I watch for?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: remove the factory plug or fitting, install the included o-ring, and thread the adapter into the transmission case port to the correct torque. Use care to avoid cross-threading and confirm port type first; if your case uses a different thread standard, these will not seal properly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemove any factory plugs and clean the port before install\u003c\/li\u003e\n  \u003cli\u003eFit the supplied o-ring to the adapter for the case seal\u003c\/li\u003e\n  \u003cli\u003eHand-start threads, then torque to manufacturer guidance\u003c\/li\u003e\n  \u003cli\u003eCheck for leaks after initial fluid pressure or road testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? These ICT Billet adapter fittings are aimed at vehicle builders, transmission specialists, and DIY enthusiasts who want a tidy, reliable way to connect -6AN aftermarket lines to common transmission case ports. If you’re customizing cooler lines, installing remote filters, or fabricating a performance transmission plumbing setup and your case uses 1\/4\" NPSM ports, these fittings simplify the job while offering durable, precision-machined hardware. Confirm your transmission’s port thread type and year before purchasing to ensure compatibility.\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 adapters include seals?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — each pair ships with o-rings to seal the adapter against the transmission case port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will they fit any transmission?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit many GM and Ford models with 1\/4\" NPSM ports up to 2007; confirm your case thread type first.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ICT Billet","offers":[{"title":"Default Title","offer_id":48084347256990,"sku":"B01MSCVIXG","price":31.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ict-billet-adapter-front-view.jpg?v=1785851142","url":"https:\/\/northtrailauto.ca\/products\/ict-billet-transmission-adapter-fittings-6an-to-1-4-npsm-pair-aluminum-o-rings","provider":"North Trail Auto","version":"1.0","type":"link"}