{"product_id":"oem-goodman-piston-flowrator-restrictor-kit-for-gsc130481ad-b1789882-1","title":"OEM Goodman Piston \/ Flowrator Restrictor Kit for GSC130481AD — B1789882","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1789882\u003c\/strong\u003e is a genuine OEM piston (flowrator) restrictor kit designed as a direct-fit replacement for the \u003cstrong\u003eGSC130481AD\u003c\/strong\u003e 13 SEER, 4-ton condensing unit. The piston is the refrigerant metering device that controls flow into the evaporator or condenser coil, maintaining the correct pressure drop and superheat for efficient cooling. A worn, clogged, or incorrectly sized piston causes poor cooling, icing, and high energy use—so using the factory-specified orifice is critical.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: B1789882\u003c\/li\u003e\n\u003cli\u003eComponent: Piston \/ flowrator metering restrictor kit\u003c\/li\u003e\n\u003cli\u003eCompatible Model: GSC130481AD (4-ton \/ 48,000 BTU)\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman\u003c\/li\u003e\n\u003cli\u003eEquipment Type: Air Conditioner\u003c\/li\u003e\n\u003cli\u003eFunction: Fixed-orifice refrigerant metering device\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis factory-original Goodman piston is bored to the exact orifice diameter matched to the GSC130481AD's capacity and refrigerant charge. Generic pistons with even slightly different orifice sizing throw off superheat and subcooling, hurting efficiency and risking compressor damage. OEM guarantees the correct metering for this system.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eAdvanced.\u003c\/strong\u003e Replacing the piston requires recovering refrigerant, opening the liner\/flowrator assembly, swapping the orifice, and recharging the system. EPA Section 608 certification is required. This job should be performed by a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057194811763,"sku":"GOODMAN-724","price":10.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-piston-flowrator-restrictor-kit-for-gsc130481ad-b1789882-1","provider":"National HVAC Parts","version":"1.0","type":"link"}