{"product_id":"oem-lennox-run-capacitor-20-mfd-440v-round-y9637","title":"OEM Lennox Run Capacitor 20 MFD 440V Round — Y9637","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003eY9637\u003c\/strong\u003e is a 20 MFD, 440-volt round run capacitor, made in the USA, that delivers the continuous phase shift needed to keep condenser fan and compressor motors running smoothly in your Lennox system. Its 20 MFD rating stores and releases energy on each cycle to maintain proper motor torque and efficiency. This is a direct factory replacement engineered to Lennox specifications for exact fit and rated reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e When the \u003cstrong\u003eY9637\u003c\/strong\u003e capacitor fails, you'll often see a fan or compressor that hums without starting, slow or intermittent starting, weak cooling on hot days, tripped breakers, or a bulging and leaking capacitor top. Capacitance naturally falls with heat exposure and age, so a reading under the 20 MFD tolerance means replacement is overdue.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The genuine Lennox \u003cstrong\u003eY9637\u003c\/strong\u003e guarantees the precise 20 MFD capacitance, 440V rating, and terminal configuration your equipment requires. Off-brand capacitors that don't match can accelerate motor wear, reduce efficiency, and cause repeat failures. Keep your Lennox unit performing as designed with the authentic USA-made OEM part.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081125216627,"sku":"LNX-Y9637","price":18.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-round-single-LNX-Y9637.jpg?v=1783763425","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-run-capacitor-20-mfd-440v-round-y9637","provider":"National HVAC Parts","version":"1.0","type":"link"}