Firsgrill 17.5" Enameled Cast Iron Cooking Grates 2-Pack — Replacement for Weber Spirit & Genesis Models, High Heat Retention

These Firsgrill 7638 replacement enameled cast iron cooking grates (2-pack, 17.5") fit many Weber Spirit and Genesis gas grills, restoring even heat retention and clear sear marks.

If your original Weber grates are warped, cracked, or simply worn smooth, the Firsgrill 7638 set offers a direct-fit, heavy-duty replacement for selected Spirit 300/310/320/700 and Genesis Silver/Gold/Platinum models. Made from enameled cast iron, these grates hold heat well and are ready to use out of the box without an initial seasoning step. They are designed as a practical, cost-effective way to bring back grilling performance and consistent browning across the cooking surface.

Which grill models will these Firsgrill 7638 grates fit?

These replacement grates are built to match the 17.5" cooking surface used on many mid-range Weber Spirit and early Genesis grills. They fit Spirit E-310/320/330 (2013–2017), Spirit II 310 (2017+), Spirit 300 series, Spirit 700, and a range of Genesis Silver/Gold/Platinum B/C models from around the 2005 model year and select Genesis 1000–3500 units.

• Compatible with Weber Spirit E-310/320/330 (2013–2017) and Spirit II 310 (2017+)
• Fits Spirit 300 series and Spirit 700
• Works with Genesis Silver/Gold/Platinum B/C models (2005 era) and some Genesis 1000–3500 grills
• Not compatible with Spirit E-310 & E-320 (2007–2012) side-control panel models

How do these cast iron grates affect cooking performance?

Enameled cast iron stores and transfers heat differently than stainless steel: it absorbs more thermal energy and releases it steadily, which helps achieve stronger sear marks and more stable temperatures across the bed of the grill.

• High heat retention for improved searing and consistent cooking
• Thicker bars help hold steady temperatures under heavier food items
• Promotes pronounced grill marks and caramelization on meats and vegetables
• Less heat fluctuation when opening the lid briefly

What maintenance and cleaning steps are recommended?

The enameled finish simplifies cleanup compared with plain cast iron and reduces the need for immediate seasoning. Routine care keeps the coating intact and prolongs the grates' useful life.

• Brush off debris after each cook with a nylon or brass brush
• Wash with warm, soapy water when cool; avoid harsh abrasives that chip enamel
• Dry thoroughly to prevent rust where enamel chips might expose raw iron
• Inspect periodically for chips or cracks and replace if protective enamel is compromised

Are there any fit or compatibility warnings I should know?

Measure your original grate length and check your grill's control-panel placement before ordering. These grates are not designed for Weber Spirit models made 2007–2012 with side-mounted control panels, so confirm model year and layout first.

• Confirm your grill model and year against fit guidance above
• Measure the existing grates to ensure 17.5" length compatibility
• Not suitable for Spirit E-310 & E-320 (2007–2012) side-control variants
• Replacement installs easily—no special tools required beyond basic lifting

Who is this for: The Firsgrill 7638 2-pack is aimed at grill owners with compatible Weber Spirit or Genesis models who want a durable, heat-retaining grate that delivers stronger sear marks and simpler cleaning than raw cast iron. It's a practical replacement for users refurbishing an older grill or anyone seeking a budget-friendly upgrade for steadier cooking performance without modifying the appliance.