{"product_id":"oem-goodman-5-pin-wiring-harness-for-gmnt040-3-b1378701","title":"OEM Goodman 5-Pin Wiring Harness for GMNT040-3 — B1378701","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1378701 5-Pin Wiring Harness\u003c\/strong\u003e is a genuine OEM plug-and-play wiring assembly for the Goodman\/Amana \u003cstrong\u003eGMNT040-3\u003c\/strong\u003e gas furnace. This 5-circuit harness provides the correct keyed connection between the furnace control board and its component circuit, letting you replace damaged, overheated, or corroded wiring with a clean factory-terminated loom.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e 5-pin keyed plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Factory-terminated furnace control wiring harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductors:\u003c\/strong\u003e Color-coded, correct-gauge OEM wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM part number:\u003c\/strong\u003e B1378701\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman\/Amana GMNT040-3 and compatible furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine Goodman harness matches the board's connector and pin-out exactly, so it seats securely and carries the correct signals. Improvised replacements risk loose connections and intermittent faults. For control-circuit wiring, OEM delivers dependable, no-guesswork results.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — the keyed connector makes replacement plug-and-play. Disconnect power first, snap a photo of the routing, and swap the harness one connector at a time. No cutting, stripping, or crimping needed.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058127257971,"sku":"GOODMAN-11609","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-5-pin-wiring-harness-for-gmnt040-3-b1378701","provider":"National HVAC Parts","version":"1.0","type":"link"}