{"product_id":"payne-pa4zna042000aa-contactor-1iwxlq","title":"OEM Payne Contactor 2-Pole 24V Coil for PA4ZNA042000AA — HN51KC024","description":"\u003ch1\u003eOEM Payne 2-Pole Contactor 24V Coil for Model PA4ZNA042000AA (HN51KC024)\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor for the \u003cstrong\u003ePayne PA4ZNA042000AA\u003c\/strong\u003e split-system air conditioner. The contactor is the high-voltage relay responsible for switching power to the compressor and condenser fan motor whenever the thermostat calls for cooling. When the contactor fails, you may experience an AC unit that won't turn on, fails to respond to thermostat signals, or runs continuously without shutting off. Burned or pitted contact points are the most common sign of a worn contactor and should be addressed promptly to prevent compressor damage.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for Payne PA4ZNA042000AA | OEM part number HN51KC024 | Direct factory replacement — no modifications required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM contactor uses factory-spec contact materials and coil windings matched exactly to your unit. Generic contactors may use lower-grade contact points that arc and pit faster, leading to premature failure and potential compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Always shut off power at the disconnect box and confirm voltage is zero before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor to ensure correct reinstallation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the \u003cstrong\u003ePayne PA4ZNA042000AA\u003c\/strong\u003e split-system air conditioner. Always verify coil voltage and pole configuration against your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you buy if you have any questions.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908350529907,"sku":"PAYNE-PA4ZNA042000AA-CONTACTOR-HN51KC024","price":68.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908350562675,"sku":"PAYNE-PA4ZNA042000AA-CONTACTOR-HN51KC024-GEN","price":60.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-HN51KC024_520f3199-6f6a-4353-a874-2e0ebc7b6865.jpg?v=1780718036","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa4zna042000aa-contactor-1iwxlq","provider":"National HVAC Parts","version":"1.0","type":"link"}