{"product_id":"oem-goodman-r-410a-piston-kit-for-anz130301ac-heat-pump-b1789865","title":"OEM Goodman R-410A Piston Kit for ANZ130301AC Heat Pump — B1789865","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1789865 Piston Kit\u003c\/strong\u003e is the genuine OEM metering device (flowrator) engineered for the \u003cstrong\u003eANZ130301AC\u003c\/strong\u003e 2.5-ton, 13 SEER Amana\/Goodman heat pump. The fixed-orifice piston sets the precise refrigerant flow rate into the coil, so the correctly sized piston is essential for rated capacity, proper superheat\/subcooling, and efficient operation. A worn, missing, or incorrectly sized piston is a leading cause of weak cooling, iced coils, and high head pressure.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: Fixed-orifice metering piston (flowrator) kit\u003c\/li\u003e\n\u003cli\u003eOEM part number: B1789865\u003c\/li\u003e\n\u003cli\u003eRefrigerant: R-410A compatible\u003c\/li\u003e\n\u003cli\u003eApplication: ANZ130301AC heat pump condenser\/coil\u003c\/li\u003e\n\u003cli\u003eFit: Direct OEM replacement — no modification required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine Goodman piston is bench-matched to the ANZ130301AC's rated tonnage and orifice diameter. Generic universal piston assortments require you to identify and swap the correct bore yourself, and an off-size orifice will throw off system charge and efficiency. For a guaranteed match and warranty-safe repair, the OEM B1789865 is the right choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIntermediate\u003c\/strong\u003e — replacement requires recovering the refrigerant charge, opening the liquid line, swapping the piston, and evacuating\/recharging the system. This is EPA Section 608 refrigerant-handling work and should be performed by a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058265735539,"sku":"GOODMAN-15164","price":6.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-r-410a-piston-kit-for-anz130301ac-heat-pump-b1789865","provider":"National HVAC Parts","version":"1.0","type":"link"}