{"product_id":"curt-4-way-trailer-wiring-harness-for-ford-e-series-e-150-e-250-e-350-vehicle-side-plug-in-t-connector","title":"CURT 4-Way Trailer Wiring Harness for Ford E-Series (E-150\/E-250\/E-350) — Vehicle-Side Plug-In T-Connector","description":"\u003cp\u003e\u003cstrong\u003eThe CURT 56020 is a vehicle-side, plug-and-play 4-way flat trailer wiring harness designed to add a standard trailer connector to select Ford E-Series (E-150, E-250, E-350) trucks without cutting or splicing factory wiring.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Ford E-Series doesn’t already have trailer wiring, this CURT T-connector provides a factory-compatible solution that installs quickly and preserves the vehicle’s original wiring. The harness uses vehicle-specific OEM-style connectors to tap into the tail light assembly and delivers a standard 4-flat output for brake lights, turn signals and running lights. A dust cover and all necessary wiring hardware are included so you can tow with confidence and keep the connector clean when it’s not in use.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this harness install on my Ford E-Series?\u003c\/h3\u003e\n\u003cp\u003eThe CURT 56020 is engineered for a straightforward plug-in installation that avoids cutting, splicing or soldering. It connects to the vehicle’s taillight sockets using matching OEM-style plugs, then mounts the 4-flat socket near the hitch for easy trailer hookup.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVehicle-specific T-connector plugs into factory taillight harness\u003c\/li\u003e\n  \u003cli\u003eNo need to alter or splice factory wires\u003c\/li\u003e\n  \u003cli\u003eMounts near the receiver for convenient access\u003c\/li\u003e\n  \u003cli\u003eIncludes dust cover to protect the connector from dirt and moisture\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat lighting functions will this 4-way flat support?\u003c\/h3\u003e\n\u003cp\u003eThis harness provides the industry-standard 4-flat output to operate a trailer’s running lights, turn signals and brake lights. It does not provide power for electric trailer brakes or reverse lights—those require a separate controller or additional wiring solution.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCombined tail\/running light circuit\u003c\/li\u003e\n  \u003cli\u003eLeft and right turn signal\/brake light circuits\u003c\/li\u003e\n  \u003cli\u003eStandard 4-flat connector compatibility with most small trailers and cargo carriers\u003c\/li\u003e\n  \u003cli\u003eNot designed for trailer brake or auxiliary power circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this harness affect my vehicle warranty or wiring?\u003c\/h3\u003e\n\u003cp\u003eBecause the CURT 56020 is a custom-fit, OEM-compatible T-connector, installation keeps the factory harness intact and avoids permanent splices. That approach minimizes alteration to the vehicle’s wiring and makes it easier to return to stock configuration if needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUses vehicle-specific connectors for a non-destructive install\u003c\/li\u003e\n  \u003cli\u003eRetains factory wiring integrity and appearance\u003c\/li\u003e\n  \u003cli\u003eCan be removed without cutting factory harnesses\u003c\/li\u003e\n  \u003cli\u003eBacked by a limited one-year CURT warranty for defects in materials and workmanship\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat hardware and protection does the kit include?\u003c\/h3\u003e\n\u003cp\u003eThe package contains the wiring harness with OEM-style plugs, a 4-way flat socket, mounting hardware and a dust cover. These items help secure the connector near the receiver and protect electrical contacts from corrosion when not connected to a trailer.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete wiring harness with vehicle-specific connectors\u003c\/li\u003e\n  \u003cli\u003e4-way flat trailer socket for standard trailers\u003c\/li\u003e\n  \u003cli\u003eDust cover to shield pins from weather and debris\u003c\/li\u003e\n  \u003cli\u003eInstallation hardware included for secure placement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The CURT 56020 is ideal for owners of compatible Ford E-150, E-250 and E-350 trucks who need a simple, reversible trailer wiring solution. It’s best for drivers towing small trailers, utility carriers, or lightweight loads that require standard lighting connections but not electric brakes or auxiliary power. If you want a fast, vehicle-specific install that preserves factory wiring, this harness is a practical, dependable choice.\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 this harness require cutting my factory wires?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The CURT 56020 uses vehicle-specific OEM-style plugs to tap into the taillight assembly without cutting or splicing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this power electric trailer brakes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The 4-way flat supports lighting only; electric brakes require a separate brake controller and wiring solution.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CURT","offers":[{"title":"Default Title","offer_id":48080838459550,"sku":"B001GMX9R2","price":69.64,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/curt-56020-front-view-connector.jpg?v=1785789737","url":"https:\/\/northtrailauto.ca\/products\/curt-4-way-trailer-wiring-harness-for-ford-e-series-e-150-e-250-e-350-vehicle-side-plug-in-t-connector","provider":"North Trail Auto","version":"1.0","type":"link"}