{"product_id":"weil-mclain-590-317-550","title":"Weil McLain 590-317-550 Gasket","description":"\u003cp\u003eThe \u003cstrong\u003eWeil McLain 590-317-550 Gasket\u003c\/strong\u003e is a \u003cstrong\u003e5.25 in. by 10.00 in.\u003c\/strong\u003e \u003cstrong\u003eflat gasket\u003c\/strong\u003e catalogued as a \u003cstrong\u003eT-heater plate\u003c\/strong\u003e \u003cstrong\u003egasket\u003c\/strong\u003e (\"Gskt \u003cstrong\u003eT-Htr Plt\u003c\/strong\u003e \u003cstrong\u003e5.25 x 10.00\u003c\/strong\u003e\"). Distributors list it as \"Gasket \u003cstrong\u003eT-Heater Plate\u003c\/strong\u003e, Size \u003cstrong\u003e5.25 x 10.00\u003c\/strong\u003e Inches.\" A \u003cstrong\u003eplate gasket\u003c\/strong\u003e seals a \u003cstrong\u003eheater plate\u003c\/strong\u003e to its \u003cstrong\u003emating surface\u003c\/strong\u003e, and its \u003cstrong\u003esize\u003c\/strong\u003e is part of the part number: a \u003cstrong\u003egasket\u003c\/strong\u003e that is a few tenths of an inch off will not seal around the \u003cstrong\u003estuds\u003c\/strong\u003e and the \u003cstrong\u003eopening\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWeil-McLain\u003c\/strong\u003e uses several \u003cstrong\u003eheater plate\u003c\/strong\u003e and \u003cstrong\u003ecover plate\u003c\/strong\u003e gaskets with similar sizes, and they are easy to confuse. The \u003cstrong\u003e590-317-579\u003c\/strong\u003e is catalogued as a \u003cstrong\u003egasket\u003c\/strong\u003e for a rectangular \u003cstrong\u003eheater cover plate\u003c\/strong\u003e, shown on its parts list with the \u003cstrong\u003e389-900-103\u003c\/strong\u003e \u003cstrong\u003erectangular tankless cover plate kit\u003c\/strong\u003e. The \u003cstrong\u003e590-317-550\u003c\/strong\u003e is its own number, so do not substitute one for another on \u003cstrong\u003esize\u003c\/strong\u003e alone: \u003cstrong\u003ecompare\u003c\/strong\u003e the shape, the \u003cstrong\u003e5.25 in. by 10.00 in.\u003c\/strong\u003e dimensions, the stud and \u003cstrong\u003ebolt hole pattern\u003c\/strong\u003e and the \u003cstrong\u003eopening\u003c\/strong\u003e to the \u003cstrong\u003egasket\u003c\/strong\u003e you are replacing.\u003c\/p\u003e\n\n\u003cp\u003eReplace a \u003cstrong\u003eplate gasket\u003c\/strong\u003e every time the plate is removed. Scrape the old material off both \u003cstrong\u003emating surfaces\u003c\/strong\u003e, check the \u003cstrong\u003estuds\u003c\/strong\u003e for corrosion, and seat the new \u003cstrong\u003egasket\u003c\/strong\u003e per the manufacturer's instructions. Tighten the \u003cstrong\u003enuts\u003c\/strong\u003e evenly in a \u003cstrong\u003ecross pattern\u003c\/strong\u003e so the \u003cstrong\u003egasket\u003c\/strong\u003e compresses uniformly, and snug them again after the boiler has heated and cooled once. Look for weeping or staining at the plate edge on the \u003cstrong\u003efirst firing\u003c\/strong\u003e. A \u003cstrong\u003eplate gasket\u003c\/strong\u003e that is over-tightened on one side can crush and leak on the other, so go slowly. If you are not sure which \u003cstrong\u003egasket\u003c\/strong\u003e your equipment uses, \u003cstrong\u003ecompare\u003c\/strong\u003e the dimensions and shape to the original before you order, and confirm compatibility with your boiler.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e5.25 In. by 10.00 In. Size:\u003c\/strong\u003e The exact dimensions are part of the \u003cstrong\u003e590-317-550\u003c\/strong\u003e catalog listing.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFlat Plate Gasket:\u003c\/strong\u003e A \u003cstrong\u003eflat gasket\u003c\/strong\u003e for sealing a \u003cstrong\u003eheater plate\u003c\/strong\u003e to its \u003cstrong\u003emating surface\u003c\/strong\u003e.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDistinct From the 590-317-579:\u003c\/strong\u003e Each number is a different \u003cstrong\u003egasket\u003c\/strong\u003e, so match by shape and dimensions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGenuine Weil-McLain Number:\u003c\/strong\u003e Order by the \u003cstrong\u003eWeil-McLain\u003c\/strong\u003e number on your original \u003cstrong\u003egasket\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWhat size is the 590-317-550?\u003c\/strong\u003e \u003cstrong\u003e5.25 in. by 10.00 in.\u003c\/strong\u003e, as listed in the catalog designation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIs it the same as the 590-317-579?\u003c\/strong\u003e They are different numbers. The \u003cstrong\u003e590-317-579\u003c\/strong\u003e is catalogued as a \u003cstrong\u003egasket\u003c\/strong\u003e for a \u003cstrong\u003eheater cover plate\u003c\/strong\u003e. Compare dimensions and shape to your original.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eShould I replace the gasket every time?\u003c\/strong\u003e Yes. Replace the \u003cstrong\u003egasket\u003c\/strong\u003e whenever the plate is removed, and tighten the \u003cstrong\u003enuts\u003c\/strong\u003e evenly in a \u003cstrong\u003ecross pattern\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\nDisclaimer: 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.","brand":"Weil McLain","offers":[{"title":"Default Title","offer_id":68025749405874,"sku":"590-317-550","price":35.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/ac-parts-1000x1000_d8f6c0df-eeb5-4a7f-8ee2-4f92681ea310.webp?v=1755632728","url":"https:\/\/www.gsistore.com\/products\/weil-mclain-590-317-550","provider":"GSIstore","version":"1.0","type":"link"}