PETKAO Cast Iron Grill Grates for Weber Genesis II / Genesis 400 (3‑Piece) — Thick, Tool‑Free

These are a three-piece heavy-duty cast iron replacement grate set designed to fit Weber GS4 Genesis II/II LX 400 series and 2022 Genesis 400 models, delivering even heat, strong sear marks, and simple tool-free installation.

If your original Weber grates are warped, heavily rusted, or missing, this PETKAO 3-pack offers a direct-fit replacement built for backyard grills. Each grate measures 18-15/16" x 11-1/4" and the set covers the standard two-burner cooking area (total 18-15/16" x 33-3/4"). Constructed from thick cast iron, these grates store heat well for steady searing and are compatible with Weber part numbers 66097, 66089, 7854 and 72848, as well as some KitchenAid equivalents.

Will these grates fit my Weber Genesis II or Genesis 400 grill?

Yes — they are made to match the cooking surface of Genesis II E-410/S-410/E-415/S-415/E-435/S-435 and Genesis II LX E-440/S-440 models (2017 and newer), plus Weber Genesis 400 (2022) variants. The split-panel layout mimics original factory sections for an accurate fit and easy alignment.

• Direct compatibility with Weber part numbers 66097, 66089, 7854, 72848.
• Fits Genesis II and selected 2022 Genesis 400 models listed above.
• Three-piece set replaces original split grates without modification.

How do these cast iron grates affect cooking performance?

Cast iron grips heat and releases it consistently, which helps create crisp sear lines and reduces temperature swings when you add food. The grates are dual-sided: one edge forms pronounced grill marks while the flatter face evens heat for delicate items.

• Thick cast iron for strong heat retention and uniform cooking.
• Triangular ridge side for deep sear marks and visual appeal.
• Flat side to minimize hot spots and cook vegetables or fish gently.

Is installation difficult and what tools do I need?

Installation is straightforward: the three-piece, split-panel design lets you lay each grate into place without tools. That makes this set a convenient upgrade or replacement for homeowners who prefer quick, low-effort maintenance.

• Tool-free drop-in design matches factory grate layout.
• Removes and replaces one panel at a time for easier handling.
• Ideal for backyard users with minimal DIY experience.

What maintenance and care should I expect with these grates?

Cast iron needs seasoning and occasional maintenance to prevent rust and keep a natural nonstick surface. After cleaning, apply a thin coat of high-heat oil and store the grill covered during wet weather to prolong life.

• Season before first use and after deep cleaning for best release.
• Scrape and brush with a stiff brush or scraper; avoid soap if possible.
• Wipe with oil when cool and store under a cover to prevent corrosion.

Who is this for? PETKAO's 66097 cast iron grate set is designed for homeowners and grilling enthusiasts who own compatible Weber Genesis II or 2022 Genesis 400 models and want a budget-friendly, high-heat replacement. It suits users replacing damaged factory parts, those seeking stronger searing performance, and anyone who prefers the durability and heat characteristics of cast iron over thin plated grates. If you need exact-fit Weber GS4 replacement parts with easy installation and restaurant-style sear capability, this 3-pack provides a practical, long-lasting solution.