{"product_id":"oem-goodman-refrigerant-piston-kit-for-ssx140241ab-b1789857-1","title":"OEM Goodman Refrigerant Piston Kit for SSX140241AB — B1789857","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1789857 Piston Kit\u003c\/strong\u003e is a genuine OEM refrigerant metering device (fixed-orifice piston) engineered for \u003cstrong\u003eSSX140241AB\u003c\/strong\u003e air conditioner systems. The piston meters liquid refrigerant into the evaporator coil at the precise rate the system was designed for, ensuring correct superheat, capacity, and efficiency. Using the factory-specified orifice size is essential — an incorrect bore changes refrigerant flow and can hurt cooling performance and compressor life.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fixed-orifice refrigerant piston (metering device)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e B1789857\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e SSX140241AB air conditioner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Meters refrigerant flow to the evaporator coil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Matched to OEM system tonnage and coil pairing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM piston is sized to the exact orifice diameter the system was engineered and charged for. Generic pistons vary in bore tolerance, and even a small deviation shifts superheat and capacity. For correct system performance and to protect the compressor, the factory-spec piston is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eAdvanced \/ Professional\u003c\/strong\u003e — Replacing a piston requires opening the sealed refrigerant circuit: recover the charge, access the metering device, swap the piston, evacuate, and recharge to spec. This is EPA Section 608 certified work and should be performed by a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057204347251,"sku":"GOODMAN-859","price":10.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-refrigerant-piston-kit-for-ssx140241ab-b1789857-1","provider":"National HVAC Parts","version":"1.0","type":"link"}