Oklagarden Cast Iron Grill Grates Replacement 3-Piece Set 18" x 25" — Thick Cast Iron for Even Heat & Strong Sear

These Oklagarden cast-iron replacement grill grates are a three-piece set designed to fit many Char-Broil Performance 4-, 5-burner and 475-with-side-burner models, restoring even heat and strong searing performance.

If your Char-Broil grill grate is warped, worn or missing, this set gives you two wider 18" x 9-1/4" grates plus one 18" x 6-1/2" narrow grate (total coverage 18" x 25") to match OEM layouts. Constructed from thicker cast iron, the Oklagarden grates accelerate heat retention and help produce sharper sear marks while resisting scratching and deformation. The set is sold as a single pack of three pieces; verify your grill model number or compare the supplied dimensions before ordering.

Which Char-Broil models and part numbers are these grates compatible with?

These grates are engineered to replace multiple original Char-Broil cooking grate part numbers across Performance 4- and 5-burner lines and the 475 model with a side burner. Compatibility listings include a wide range of OEM codes, so they work as drop-in replacements for many affected grills.

• Fits Char-Broil part numbers such as 463342119, 463347519, 463347518 and similar IDs.
• Also compatible with original codes G470-0002-W1, G470-0003-W1, G321-0005-W1 and G321-0006-W1.
• Designed for Performance 4, Performance 5, and Performance 475 series models with matching grate dimensions.

How do these cast-iron grates affect grilling performance?

Thicker cast iron stores and transfers heat more efficiently than thin stamped steel, so the grates help maintain consistent surface temperatures and deliver pronounced searing lines. Their mass improves heat recovery when you place cold food on the surface, giving better crust formation without constant high flame.

• High heat retention provides consistent sear marks and browning.
• Solid cast iron resists warping under normal grilling temperatures.
• Surface seasons with oil to develop a natural nonstick finish over time.

What are the dimensions, package contents, and how should I choose the right set?

This package contains three grates sized to match the common Char-Broil layout: two larger 18" × 9-1/4" grates and one narrow 18" × 6-1/2" grate, summing to an 18" × 25" cooking surface. Measure your existing grate area and check the Char-Broil part number stamped on your original pieces to confirm fit before purchase.

• Included: 2 × 18" × 9-1/4" + 1 × 18" × 6-1/2" (three-piece set).
• Total coverage: 18" × 25"; confirm grill spacing and supports match.
• Contact the seller if unsure about fit—provide your grill model or part number.

How do I care for and season these replacement cooking grates?

After cleaning new cast-iron grates, coat them with a thin layer of high-smoke-point oil and heat until the oil polymerizes; repeat to build a durable seasoned surface. Routine brushing after use and occasional re-seasoning maintains nonstick properties and prevents rust. Avoid soaking; dry immediately and store in a dry place.

• Initial seasoning: apply oil, heat to smoking point, then cool; repeat 2–3 times.
• After each cook: brush residue, lightly oil, and store dry to prevent rust.
• For heavy buildup: use a grill brush and re-season afterward.

Who is this for: Grill owners who need a direct-fit replacement for damaged or missing Char-Broil grates and want the benefits of cast iron—better heat retention, improved searing and long-term durability. This set suits owners of Char-Broil Performance 4- and 5-burner units and the Performance 475 with side burner, mechanics replacing OEM parts, and anyone upgrading from thinner grates. Confirm your grill's part number or measure the grate area before ordering to ensure compatibility.