{"product_id":"lennox-46k90-inducer-gasket","title":"Lennox 46K90 Inducer Gasket","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 46K90 Inducer Gasket\u003c\/strong\u003e (also identified by part number \u003cstrong\u003e46K9001\u003c\/strong\u003e) is an essential OEM component designed for high-temperature sealing between the draft inducer blower and the furnace collector box. Engineered from a robust fiberglass material, this \u003cstrong\u003ereplacement furnace gasket\u003c\/strong\u003e is built to withstand the rigorous thermal cycling of high-efficiency gas furnaces without degrading. Its precise dimensions—a 7-3\/4 inch length and 6-5\/8 inch width with a 5-1\/8 inch inner diameter—ensure a critical airtight seal that prevents the leakage of combustion byproducts into the mechanical room or living spaces. For technicians servicing \u003cstrong\u003eAllied\u003c\/strong\u003e, \u003cstrong\u003eArmstrong\u003c\/strong\u003e, \u003cstrong\u003eDucane\u003c\/strong\u003e, or \u003cstrong\u003eLennox HVAC equipment\u003c\/strong\u003e, this part is a direct replacement for legacy numbers such as \u003cstrong\u003eR41667-001\u003c\/strong\u003e and \u003cstrong\u003e20313401\u003c\/strong\u003e. Installing this \u003cstrong\u003eOEM inducer gasket\u003c\/strong\u003e is standard practice during blower assemblies to maintain proper static pressure and ensure the \u003cstrong\u003edraft inducer motor\u003c\/strong\u003e operates within factory specifications. Using a genuine \u003cstrong\u003eLennox 46K90\u003c\/strong\u003e ensures compatibility with PGE series and GCS series residential units.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Temperature Resistance:\u003c\/strong\u003e Constructed from thermal-grade fiberglass to maintain integrity in peak combustion environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Direct fit for multiple brands including Lennox, Armstrong, and Ducane, simplifying truck stock.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Dimensions:\u003c\/strong\u003e 5-1\/8\" ID facilitates a snug fit around the blower outlet, preventing bypass and pressure drops.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem Safety:\u003c\/strong\u003e Prevents the escape of carbon monoxide and other flue gases by ensuring a total seal at the inducer interface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is my inducer motor leaking water or air?\u003c\/strong\u003e\u003cbr\u003e\nIf you notice moisture around the blower or hear air whistling, the \u003cstrong\u003eLennox 46K90 Inducer Gasket\u003c\/strong\u003e may have compressed or deteriorated. Replacing it is necessary whenever the motor is pulled for service.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the 46K90 compatible with non-Lennox furnaces?\u003c\/strong\u003e\u003cbr\u003e\nYes, as a standard part for Allied Air and Armstrong units, it is widely used across several brands under the Lennox International umbrella.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use RTV silicone instead of this gasket?\u003c\/strong\u003e\u003cbr\u003e\nHigh-temp RTV is often used as a supplement, but the fiberglass \u003cstrong\u003e46K9001 gasket\u003c\/strong\u003e provides the specific thickness and vibration dampening required for a long-term mechanical seal.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":35643814284,"sku":"46K90","price":8.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Image_c7e38588-fee2-43b4-b083-7422447421f2.png?v=1794183725","url":"https:\/\/www.gsistore.com\/products\/lennox-46k90-inducer-gasket","provider":"GSIstore","version":"1.0","type":"link"}