{"product_id":"weil-mclain-383-500-620-maintenance-kit","title":"Weil McLain 383-500-620 Maintenance Kit","description":"\u003cp\u003eProfessional heating contractors understand that scheduled service is the only way to maintain the \u003cstrong\u003ecombustion efficiency\u003c\/strong\u003e and operational integrity of high-efficiency condensing units. The \u003cstrong\u003eWeil McLain 383-500-620 Maintenance Kit\u003c\/strong\u003e is a critical \u003cstrong\u003eOEM boiler part\u003c\/strong\u003e designed specifically for \u003cstrong\u003eUltra Gas Boilers\u003c\/strong\u003e, providing all the necessary components for a comprehensive annual teardown and inspection. This kit is compatible with \u003cstrong\u003eUltra 155, 230, 299, and 399\u003c\/strong\u003e models across Series 1, Series 2, and Series 3-CT versions. By replacing worn seals and the \u003cstrong\u003eigniter\u003c\/strong\u003e, technicians can prevent nuisance lockouts and ensure a \u003cstrong\u003eclean burn\u003c\/strong\u003e. The inclusion of the \u003cstrong\u003eburner gasket\u003c\/strong\u003e and \u003cstrong\u003ecover plate insulation\u003c\/strong\u003e simplifies the service process, ensuring a gas-tight seal on the heat exchanger. This \u003cstrong\u003egas boiler annual service kit\u003c\/strong\u003e consolidates multiple failure-prone components into a single part number, eliminating the need to source individual gaskets and electrodes for the \u003cstrong\u003eWeil McLain Ultra\u003c\/strong\u003e. Maintaining these high-performance systems requires \u003cstrong\u003egenuine Weil McLain replacement parts\u003c\/strong\u003e to meet factory specifications and optimize system longevity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Ultra Compatibility:\u003c\/strong\u003e Specifically engineered for the Weil McLain Ultra Series (155-399), ensuring precise fitment and sealing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Component Set:\u003c\/strong\u003e Includes the \u003cstrong\u003eigniter\u003c\/strong\u003e, igniter gasket, cover plate gasket, cover plate insulation, burner gasket, and venturi gasket in one package.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Combustion:\u003c\/strong\u003e Refreshing the ignition system and gaskets prevents air leaks and stabilizes signal strength for consistent ignition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreamlined Inventory:\u003c\/strong\u003e Reduces truck stock complexity by providing all required \u003cstrong\u003eannual maintenance components\u003c\/strong\u003e under a single SKU.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat models are compatible with the 383-500-620 kit?\u003c\/strong\u003e\u003cbr\u003eThis kit is designed for \u003cstrong\u003eWeil McLain Ultra Gas Boilers\u003c\/strong\u003e in sizes 155, 230, 299, and 399. It fits Series 1, Series 2, and Series 3-CT units.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should this maintenance kit be installed?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer recommends a full inspection and part replacement using this kit during the \u003cstrong\u003eannual boiler service\u003c\/strong\u003e to maintain thermal efficiency and reliable operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these generic aftermarket parts?\u003c\/strong\u003e\u003cbr\u003eNo, this is a \u003cstrong\u003egenuine Weil McLain OEM maintenance kit\u003c\/strong\u003e. Using factory parts is essential for maintaining the performance profile and safety of high-efficiency gas systems.\u003c\/p\u003e\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\n\u003ch2\u003e\n\u003cspan style=\"color: red;\"\u003eThis item is not eligible for free shipping.\u003c\/span\u003e\u003cspan style=\"font-size: 10.0pt; font-family: 'Arial',sans-serif; color: red; background: white;\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e","brand":"Weil McLain","offers":[{"title":"Default Title","offer_id":35647556556,"sku":"383-500-620","price":118.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Image_fcd79e2f-5a7f-4861-ace7-223d39af964c.png?v=1791490387","url":"https:\/\/www.gsistore.com\/products\/weil-mclain-383-500-620-maintenance-kit","provider":"GSIstore","version":"1.0","type":"link"}