{"product_id":"ggc-cast-iron-grill-grates-for-weber-spirit-spirit-ii-300-series-17-5-x-11-9-pair-heavy-duty-searing-even-heat","title":"GGC Cast Iron Grill Grates for Weber Spirit \u0026 Spirit II 300 Series, 17.5\" x 11.9\" Pair — Heavy-Duty Searing \u0026 Even Heat","description":"\u003cstrong\u003eHeavy-duty cast iron replacement grates sized 17.5\" x 11.9\" each (sold as a pair) for Weber Spirit \u0026amp; Spirit II 300-series and many Genesis models.\u003c\/strong\u003e\n\n\u003cp\u003eIf your original cooking grates are warped, rusted, or no longer delivering even heat, the GGC 7638\/7639 set gives your grill a durable, high-heat contact surface designed to restore searing performance and attractive grill marks. These two-piece cast iron grates are made to match the footprint of many Weber Spirit E\/S 310\/320\/330 and Spirit II 300-series models, plus a long list of compatible Genesis and Weber model numbers. They arrive pre-sized for a straightforward swap—just compare measurements with your existing parts before installing.\u003c\/p\u003e\n\n\u003ch3\u003eWhich grill models will these grates actually fit?\u003c\/h3\u003e\n\u003cp\u003eThese GGC grates are tailored for Weber Spirit 300-series grills built roughly 2000–2017 and Spirit II 300-series units. They also fit a wide range of Genesis Silver, Gold and Platinum B\/C models as listed by the manufacturer. Always verify your grill's model number and original part numbers to confirm compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePrimary fit: Weber Spirit E-310, E-320, E-330, S-310, S-320, S-330 and Spirit II E\/S 310\/320\/330.\u003c\/li\u003e\n  \u003cli\u003eCompatible with many Genesis Silver\/Gold\/Platinum B\/C series (2000–2010 era) — not compatible with Genesis Silver A.\u003c\/li\u003e\n  \u003cli\u003eReplacement for original part numbers such as 7638, 7525, 7527, 65619, 65906.\u003c\/li\u003e\n  \u003cli\u003eAlso reported compatible with select Weber Smokefire Ex4\/Ex6 pellet grills; double-check fit first.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these cast iron grates affect cooking performance?\u003c\/h3\u003e\n\u003cp\u003eCast iron holds and distributes heat differently than plated steel; these grates soak up high temperatures and deliver steady, intense contact heat for searing. That means faster crust formation and more distinct char lines, while retained heat helps maintain temperature when you open the lid. Proper seasoning and maintenance are important to prevent sticking and rust.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh thermal mass for consistent searing and deeper grill marks.\u003c\/li\u003e\n  \u003cli\u003eEven heat transfer reduces cold spots across the cooking surface.\u003c\/li\u003e\n  \u003cli\u003eRequires seasoning to build a natural nonstick layer and resist corrosion.\u003c\/li\u003e\n  \u003cli\u003eHeavy-duty construction resists warping under high flame.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the exact dimensions and what's included in the package?\u003c\/h3\u003e\n\u003cp\u003eEach grate measures 17.5 inches long by 11.9 inches wide; the pair covers a combined width of 23.8 inches when installed side-by-side. The set arrives with two cast iron cooking grates—no additional hardware is necessary. Measure your existing grates or the cooking box to confirm these dimensions before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle grate size: 17.5\" L x 11.9\" W; two-piece set covers 17.5\" x 23.8\" total.\u003c\/li\u003e\n  \u003cli\u003ePackage contents: 2 cast iron grates (no bolts or clips included).\u003c\/li\u003e\n  \u003cli\u003eConfirm model and part number compatibility listed by GGC before purchase.\u003c\/li\u003e\n  \u003cli\u003eIntended as a direct replacement—designed to sit where the originals did.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I care for these grates to get the longest service life?\u003c\/h3\u003e\n\u003cp\u003eCast iron performs best when kept seasoned and clean. After initial seasoning, clean with a stiff brush, avoid soap if possible, dry completely, and apply a thin coat of oil to prevent oxidation. Regular maintenance keeps the nonstick surface effective and prolongs the grate life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSeason before first use and re-season periodically with high-smoke-point oil.\u003c\/li\u003e\n  \u003cli\u003eScrub with a grill brush or scraper; avoid soaking the grates long-term.\u003c\/li\u003e\n  \u003cli\u003eDry fully after cleaning, then apply a light oil layer to prevent rust.\u003c\/li\u003e\n  \u003cli\u003eStore indoors or covered during extended off-season to reduce corrosion risk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Grill owners who want durable cast iron performance without buying OEM parts can use the GGC 7638\/7639 set to revive older Spirit 300-series or many compatible Genesis grills. If you need stronger searing, more heat retention, and a replacement that matches common Weber part numbers, this pair is suited for hobbyist grillers and weekend chefs who will maintain and season cast iron correctly.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these grates compatible with Weber Spirit II 300-series?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the GGC 7638\/7639 set fits Spirit II E\/S 310, 320, 330 models; verify your model number before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the dimensions of each grate?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Each cast iron grate measures 17.5\" long by 11.9\" wide; the two-piece set covers 17.5\" x 23.8\" combined.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GGC","offers":[{"title":"Default Title","offer_id":56820355989844,"sku":"B07JKM917N","price":114.31,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/ggc-front-view-grates.jpg?v=1786964933","url":"https:\/\/gardenluxe.co.uk\/products\/ggc-cast-iron-grill-grates-for-weber-spirit-spirit-ii-300-series-17-5-x-11-9-pair-heavy-duty-searing-even-heat","provider":"Gardenluxe Uk","version":"1.0","type":"link"}