{"product_id":"oem-goodman-piston-kit-for-gmp150-5-furnace-b1789890","title":"OEM Goodman Piston Kit for GMP150-5 Furnace — B1789890","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1789890 Piston Kit\u003c\/strong\u003e is a genuine OEM metering piston assembly designed for the \u003cstrong\u003eGoodman GMP150-5\u003c\/strong\u003e furnace. The piston (metering device) controls precise flow through the system, and an incorrectly sized or worn piston leads to poor performance, inefficient operation, and inconsistent output. Installing the factory-specified piston restores the exact metering rate the unit was engineered for.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: B1789890\u003c\/li\u003e\n\u003cli\u003eComponent: Metering piston \/ orifice kit\u003c\/li\u003e\n\u003cli\u003eCompatible Model: Goodman GMP150-5\u003c\/li\u003e\n\u003cli\u003eFlow-rated to factory specification\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman piston\u003c\/strong\u003e is bored to Goodman's exact flow rating for the GMP150-5. Generic pistons are sold in nominal sizes that may not match your unit's specification, causing metering error. Because a piston directly governs flow and efficiency, we strongly recommend the OEM part for correct, safe operation.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Moderate\u003c\/h3\u003e\u003cp\u003eThis repair involves the sealed metering circuit. Cut power, access the metering fitting, replace the piston, and reseal per Goodman's service instructions. Correct torque and leak-checking are essential. If you are not experienced with this type of service, we recommend a licensed HVAC technician install this part.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058138333555,"sku":"GOODMAN-11931","price":16.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-piston-kit-for-gmp150-5-furnace-b1789890","provider":"National HVAC Parts","version":"1.0","type":"link"}