{"product_id":"oem-goodman-condenser-piston-kit-for-gsc130481af-b1789882-1","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":"Default Title","offer_id":63057197269363,"sku":"GOODMAN-734","price":10.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-condenser-piston-kit-for-gsc130481af-b1789882-1","provider":"National HVAC Parts","version":"1.0","type":"link"}