Charbrofire Cast-Iron Replacement Grates for Weber Genesis II 300 Series — Matte Enamel, Pair (2017+)

These Charbrofire matte-enamel cast iron replacement grates are a direct-fit, heavy-duty swap for Weber Genesis II 300-series cooking grates, delivering superior heat retention and even searing.

If your Weber Genesis II 300-series grill needs new cooking grates, these Charbrofire cast-iron replacements are shaped and sized to match common Weber part numbers (including 66802, 66095, 66805 and others) and fit models from 2017 onward labeled “GENESIS II.” Made from thicker solid rods with a matte enamel finish, the pair is built to hold heat, create sear marks quickly, and last longer than thin or flaking porcelain-coated grates when cared for properly.

Will these grates fit my Weber Genesis II 300-series model?

Yes — these grates are designed to fit Genesis II gas grills in the 300 and LX 300 line produced from 2017 to present, including E-310, S-310, E-315, E-325, E-330, S-335 and similar variants. They match multiple original part numbers so they drop into the standard grate supports without modification.

• Compatible models include Genesis II 300 and II LX 300 series (2017+).
• Matches Weber part numbers: 66802, 66095, 66805 and related codes.
• Dimensions: each grate 18.75" x 13.25"; pair total 18.75" x 26.5".
• Not compatible with “GENESIS” (pre-2017) models labeled without “II.”

How does cast iron perform compared with porcelain-coated grates?

Cast iron holds and distributes heat more effectively than many thinner materials, producing better searing and more even cooking temperatures across the surface. The matte enamel finish helps protect the iron while avoiding the chipping issues common with some porcelain coatings when they’re nicked or stressed.

• Heavy solid rods increase heat retention and evenness.
• Matte enamel resists flaking better than thin porcelain coatings.
• Thicker construction reduces warping under high heat.
• Requires simple oiling to maintain the cooking surface and prevent rust.

What maintenance and care do these replacement grates need?

Cast iron benefits from routine seasoning: lightly oil the grates before and after each use and avoid metal scrubbers that strip the finish. Clean off food residue with a nylon brush while the grate is warm, then reapply a thin coat of cooking oil to keep the enamel-protected surface performing longer.

• Brush with non-metallic tools; avoid steel wool that damages the finish.
• Lightly oil before first use and after each cleaning to preserve seasoning.
• Store in a dry place if grill will be unused for extended periods.
• Follow standard gas-grill safety and cleaning routines.

Which benefits should I expect after swapping to Charbrofire grates?

Expect faster searing, clearer grill marks, and a more even cooking surface across the two-piece set. Because these grates are heavier and use larger-diameter rods, they retain heat better during lid openings and hold steady temperature for thicker cuts.

• Improved sear and caramelization for steaks and chops.
• More consistent heat across the cooking area.
• Durable build reduces chance of cracking or warping with normal use.
• Direct-fit replacement minimizes installation time.

Who is this for: Grill owners with a Weber Genesis II 300-series (2017 and newer) who want a heavy-duty, long-lasting replacement grate set that improves sear, heat retention, and cooking consistency. If your grill panel reads "GENESIS II" and you want an upgrade from thinner or chipped porcelain grates, these Charbrofire matte-enamel cast iron pieces are a practical, compatible option. If you’re unsure whether your model qualifies, check the grill panel for the "II" designation or contact the seller with your grill model year and serial details.