GasSaf cast iron grill grates for Weber Spirit & Genesis, 17.5 x 11.9 in (set of 2) — heavy-duty sear & even heat

These GasSaf cast iron grill grates are a direct aftermarket replacement for Weber 7638/7639 models, delivering heavy-duty heat retention and a durable cooking surface sized 17.5 x 11.9 inches each (set of 2).

If your Weber Spirit or Genesis grill needs new cooking grates, these GasSaf 7638-compatible cast iron bars restore searing performance and even heat across the cooking zone. Made to match the form and function of many Spirit 300, Spirit 700, Weber 900 and multiple Genesis models, the set includes two identical 17.5 x 11.9 inch grates that together cover a 17.5 x 23.8 inch area. They’re an aftermarket option built to be heavy-duty, non-stick once seasoned, and straightforward to install.

Will these replace my Weber Spirit 300 or Genesis grates?

Yes — these grates are manufactured to fit the listed Weber Spirit 300 series and a broad range of Genesis and Spirit models. Compare the dimensions and mounting points of your original parts to ensure an exact fit before ordering.

• Designed for Spirit E310, E320, E330, S310, S320, S330
• Also fits Spirit 700, Weber 900, Genesis Silver/Gold/Platinum models (various years)
• Replaces part numbers 7638 and 7639 where applicable

How do cast iron grates improve grilling performance?

Cast iron stores and radiates heat more efficiently than thinner metals, giving you stronger sear marks and steadier temperatures across the cooking surface. When properly seasoned, they develop a naturally non-stick surface that helps prevent food from sticking and improves flavor through better caramelization.

• Superior heat retention for even searing
• Weight and thickness reduce temperature swings
• Seasoned surface becomes naturally non-stick over time

What care and maintenance do these grates need?

Cast iron requires a little routine care: clean after each use, dry thoroughly, and maintain a light coat of oil to prevent rust and preserve the seasoned layer. Avoid harsh detergents or soaking; instead, scrub with a brush, reheat briefly to evaporate moisture, then apply a thin oil layer.

• Hand scrub with a brush; avoid dishwashers
• Dry immediately and apply a light food-grade oil
• Re-season periodically for best non-stick performance

Are these easy to install and compatible with other grill types?

Installation is straightforward: lift out the old grates and set the GasSaf pieces into place. While designed for specific Weber models, these cast iron grates can also work with other compatible gas, electric, or charcoal cooking systems if dimensions and mounting match.

• Simple swap — no special tools required
• Fits many Weber grill model numbers listed by the maker
• Check your original grate dimensions before purchase

Who is this for? Grillers who want to restore or upgrade their Weber Spirit or Genesis cooking surfaces with robust cast iron grates will appreciate this GasSaf set. It’s aimed at homeowners and outdoor cooks seeking better searing, longer heat hold, and durable aftermarket replacements — provided you verify fit against your original grate measurements first.