GGC Cast Iron Grill Grates for Weber Spirit & Spirit II 300 Series, 17.5" x 11.9" Pair — Heavy-Duty Searing & Even Heat

If 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.

Which grill models will these grates actually fit?

These 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.

• Primary fit: Weber Spirit E-310, E-320, E-330, S-310, S-320, S-330 and Spirit II E/S 310/320/330.
• Compatible with many Genesis Silver/Gold/Platinum B/C series (2000–2010 era) — not compatible with Genesis Silver A.
• Replacement for original part numbers such as 7638, 7525, 7527, 65619, 65906.
• Also reported compatible with select Weber Smokefire Ex4/Ex6 pellet grills; double-check fit first.

How do these cast iron grates affect cooking performance?

Cast 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.

• High thermal mass for consistent searing and deeper grill marks.
• Even heat transfer reduces cold spots across the cooking surface.
• Requires seasoning to build a natural nonstick layer and resist corrosion.
• Heavy-duty construction resists warping under high flame.

What are the exact dimensions and what's included in the package?

Each 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.

• Single grate size: 17.5" L x 11.9" W; two-piece set covers 17.5" x 23.8" total.
• Package contents: 2 cast iron grates (no bolts or clips included).
• Confirm model and part number compatibility listed by GGC before purchase.
• Intended as a direct replacement—designed to sit where the originals did.

How should I care for these grates to get the longest service life?

Cast 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.

• Season before first use and re-season periodically with high-smoke-point oil.
• Scrub with a grill brush or scraper; avoid soaking the grates long-term.
• Dry fully after cleaning, then apply a light oil layer to prevent rust.
• Store indoors or covered during extended off-season to reduce corrosion risk.

Who 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.