{"product_id":"oem-goodman-condenser-piston-kit-for-gsc130481af-b1789882","title":"OEM Goodman Condenser Piston Kit for GSC130481AF — B1789882","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1789882\u003c\/strong\u003e is a genuine OEM piston (flowrator\/orifice) kit for the \u003cstrong\u003eGSC130481AF\u003c\/strong\u003e condensing unit. The piston is the fixed-bore metering device that regulates refrigerant flow into the evaporator coil, setting the correct pressure drop for efficient cooling. Using the factory-specified orifice size is critical — an incorrect piston causes poor capacity, high head pressure, frosting, or compressor strain. This kit delivers the exact bore Goodman engineered for this system.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Fixed-orifice piston \/ flowrator metering device\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant:\u003c\/strong\u003e Compatible with the GSC130481AF charge (R-410A platform)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Condenser\/evaporator refrigerant metering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GSC130481AF and matched coil systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part #:\u003c\/strong\u003e B1789882\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM piston\u003c\/strong\u003e is precision-drilled to the bore size Goodman matched to this condenser\/coil pairing. Universal piston assortments exist, but installing the wrong diameter throws off superheat and subcooling. The OEM kit removes the guesswork and guarantees the engineered metering rate.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eHard (Professional Required).\u003c\/strong\u003e Replacing the piston requires recovering the refrigerant, opening the liquid-line connection, swapping the orifice in the flowrator body, then evacuating and recharging the system. This is EPA-certified technician work — improper handling violates refrigerant regulations. Plan for 1–2 hours.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Direct Replacement","offer_id":63032333599091,"sku":"B1789882-GEN","price":5.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048220705139,"sku":"B1789882","price":7.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-burner-orifice-B1789882.jpg?v=1782947655","url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-condenser-piston-kit-for-gsc130481af-b1789882","provider":"National HVAC Parts","version":"1.0","type":"link"}