{"product_id":"oem-goodman-5-pin-wiring-harness-for-aph1636h41ab-b1378701","title":"OEM Goodman 5-Pin Wiring Harness for APH1636H41AB — B1378701","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1378701 5-Pin Wiring Harness\u003c\/strong\u003e is a factory-original OEM sub-harness for the \u003cstrong\u003eAPH1636H41AB\u003c\/strong\u003e heat pump. This smaller 5-pin connector links accessory components — typically sensor, valve, or auxiliary control circuits — to the main control board. Worn insulation, loose pins, or moisture intrusion at this connector can produce erratic sensor readings and nuisance fault codes. A direct OEM swap eliminates guesswork and restores clean, factory-spec signaling.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B1378701\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e 5-Pin sub-harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e APH1636H41AB (heat pump)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (OEM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Accessory\/sensor control wiring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis \u003cstrong\u003egenuine Goodman OEM harness\u003c\/strong\u003e uses the correct keyed 5-pin connector and manufacturer wire spec, so it seats exactly as the original. Generic replacements often force pin re-arrangement or splicing, which risks reversed polarity and control-board faults. OEM is the safe, warranty-preserving choice.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty: Moderate.\u003c\/strong\u003e Kill power at the disconnect first. Note the original routing, unplug the keyed connector, and install the replacement along the same path — no tools or crimping needed. If you're uncertain about the connection point, have a licensed HVAC technician perform the swap.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058296504691,"sku":"GOODMAN-15826","price":11.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-5-pin-wiring-harness-for-aph1636h41ab-b1378701","provider":"National HVAC Parts","version":"1.0","type":"link"}