{"product_id":"oem-goodman-16-pin-wiring-harness-for-gdt115-5-b1378700","title":"OEM Goodman 16-Pin Wiring Harness for GDT115-5 — B1378700","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1378700 16-Pin Wiring Harness\u003c\/strong\u003e is a genuine OEM main control harness for \u003cstrong\u003eGDT115-5\u003c\/strong\u003e gas furnaces. This harness carries power and signal between the integrated furnace control board and the furnace components through a keyed 16-pin connector. Melted pins, chafed insulation, or corroded terminals cause intermittent operation, no-heat calls, and blown fuses. A factory-terminated replacement restores clean, reliable connections without splicing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e B1378700\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e 16-pin keyed plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Main furnace control board harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e Factory-crimped, color-coded leads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Goodman GDT115-5 furnaces with matching 16-pin control board\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e harness arrives pre-terminated with the correct pin-out, wire gauge, and connector keying — plug-and-play with no guesswork. Generic harnesses require hand-crimping and pin mapping, where a single mis-pinned wire can damage the control board. For a component that routes board power and signals, OEM is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5).\u003c\/strong\u003e Disconnect power, photograph the routing, unplug the old harness at both ends, and route the new one along the same path. Because it interfaces with the control board, take care to seat the keyed connector fully. Allow 30–45 minutes.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058080760179,"sku":"GOODMAN-10478","price":34.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-16-pin-wiring-harness-for-gdt115-5-b1378700","provider":"National HVAC Parts","version":"1.0","type":"link"}