{"product_id":"curt-4-pin-trailer-wiring-for-subaru-ascent-forester-outback-crosstrek-plug-and-play-4-way-flat","title":"CURT 4-Pin Trailer Wiring for Subaru Ascent\/Forester\/Outback\/Crosstrek — Plug-and-Play 4-Way Flat","description":"\u003cp\u003e\u003cstrong\u003eCURT 56040 is a vehicle‑specific 4‑pin plug‑and‑play trailer wiring connector designed to give compatible Subaru Ascent, Forester, Outback and Crosstrek models a standard 4‑way flat trailer socket without cutting or splicing the factory wiring.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you tow small trailers, utility carts, or recreational gear with a compatible Subaru, this CURT T‑connector delivers a professional wiring interface that installs in minutes. The harness mates to the vehicle’s OEM socket (where equipped) and outputs a 4‑way flat connection that carries tail lights, turn signals and brake lights. Built with SMT circuitry and a tail light converter, the 56040 is engineered to match factory electrical behavior and resist the wear of regular towing use.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this connector install on my Subaru?\u003c\/h3\u003e\n\u003cp\u003eInstallation is plug‑and‑play when your Subaru has the required OEM socket. There’s no cutting, splicing, or soldering: the harness plugs into the vehicle connector and routes to the rear bumper area where the 4‑way flat socket mounts. CURT includes the mounting hardware and a dust cover so the socket stays protected when not in use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePlugs into factory OEM trailer socket (if vehicle equipped)\u003c\/li\u003e\n  \u003cli\u003eNo wire cutting or splicing required\u003c\/li\u003e\n  \u003cli\u003eMounting bracket and hardware included for secure fit\u003c\/li\u003e\n  \u003cli\u003eProtective dust cover keeps socket clean\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat lighting functions does the 4‑way flat provide?\u003c\/h3\u003e\n\u003cp\u003eThe 4‑way flat output carries the essential trailer lighting signals: running\/tail lights, left and right turn signals, and brake lights. A built‑in tail light converter ensures the Subaru’s lighting circuits and the trailer’s wiring behave compatibly, avoiding bulb conflicts or abnormal flash patterns.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTail\/running light feed for nighttime visibility\u003c\/li\u003e\n  \u003cli\u003eSeparate left and right turn signal circuits\u003c\/li\u003e\n  \u003cli\u003eBrake light output synchronized with vehicle brakes\u003c\/li\u003e\n  \u003cli\u003eIntegrated converter to protect vehicle lighting circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this harness work reliably over time and in wet conditions?\u003c\/h3\u003e\n\u003cp\u003eCURT designs these custom harnesses with durable components and SMT (surface‑mount technology) circuitry to improve long‑term performance and reduce failures from vibration. The connector includes a weather‑resistant dust cover and robust contacts to maintain a consistent electrical connection during routine use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSMT circuitry for improved durability and signal stability\u003c\/li\u003e\n  \u003cli\u003eSealed connector contacts reduce corrosion risk\u003c\/li\u003e\n  \u003cli\u003eDust cover prevents debris and moisture ingress when unused\u003c\/li\u003e\n  \u003cli\u003eTested by CURT for reliable vehicle‑to‑trailer operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich Subaru models and years does this fit?\u003c\/h3\u003e\n\u003cp\u003eThe CURT 56040 is made to match the wiring interface for specific model years of Subaru Ascent, Forester, Outback, Crosstrek and XV Crosstrek. Because vehicle wiring and factory sockets vary by year and trim, verify compatibility with the vehicle application information before purchase to ensure a correct fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCustom‑fit for select Subaru Ascent, Forester, Outback, Crosstrek and XV models\u003c\/li\u003e\n  \u003cli\u003eCheck product application guide for exact model years and trims\u003c\/li\u003e\n  \u003cli\u003eDesigned to match OEM connector locations and mounting points\u003c\/li\u003e\n  \u003cli\u003eHardware included for secure, vehicle‑specific installation\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The CURT 56040 is aimed at Subaru owners who tow light trailers, small utility loads, or recreational gear and who want a factory‑style wiring connection without modifying the vehicle’s factory wiring. If you value a clean, reversible install and dependable trailer light signaling, this custom T‑connector is a straightforward, professionally engineered solution.\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: Does the CURT 56040 require splicing into my vehicle wiring?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — it plugs into the vehicle’s OEM socket when present, avoiding any cutting or splicing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this adapter power my trailer brakes or reverse lights?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The 56040 provides tail, turn, and brake lighting on a 4‑way flat; it does not supply trailer brake controller or reverse circuits.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CURT","offers":[{"title":"Default Title","offer_id":67586948595897,"sku":"B0031G8GME","price":106.76,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/curt-56040-front-socket-view.jpg?v=1790497606","url":"https:\/\/redleafauto.ca\/products\/curt-4-pin-trailer-wiring-for-subaru-ascent-forester-outback-crosstrek-plug-and-play-4-way-flat","provider":"Redleaf Auto","version":"1.0","type":"link"}