{"product_id":"oem-lennox-run-capacitor-50-mfd-440v-round-19j03","title":"OEM Lennox Run Capacitor 50 MFD 440V Round — 19J03","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e19J03\u003c\/strong\u003e is a 50 MFD, 440-volt round run capacitor (Firstchoice brand) built to drive the higher-capacitance motors found in many Lennox condensing units and compressors. At 50 microfarads, it stores and releases the larger charge these motors require, sustaining strong torque, steady RPM, and lower amperage draw across every cooling cycle for efficient, reliable operation.\u003c\/p\u003e\u003cp\u003eA run capacitor under this much electrical load eventually degrades, and a failing \u003cstrong\u003e19J03\u003c\/strong\u003e makes itself known: a compressor or fan that hums but won't start, hard starting, tripped breakers, weak cooling, short-cycling, and rising energy bills. Any bulging, venting, or oil leakage from the capacitor top confirms it has failed and must be replaced promptly to protect the motor.\u003c\/p\u003e\u003cp\u003eOEM specification is critical at this rating — a 440V, 50 MFD capacitor matched to Lennox tolerances keeps the motor operating within its designed electrical envelope, while generic parts risk overheating, premature compressor wear, and voided warranties. The \u003cstrong\u003e19J03\u003c\/strong\u003e guarantees correct fit and rated efficiency for your Lennox equipment. In stock and ships same day for fast repairs.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081124561267,"sku":"LNX-19J03","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-19J03.jpg?v=1783763452","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-run-capacitor-50-mfd-440v-round-19j03","provider":"National HVAC Parts","version":"1.0","type":"link"}