Grate Grill Replacement Parts for Weber Genesis II 400 Series

In this review of the Grate Grill Replacement Parts for Weber Genesis II 400 Series, the bottom line is simple: these cast iron cooking grids are for owners who need a heavy-duty, long-lasting replacement that fits 2017+ Genesis II and 2022+ Genesis 400 models. The reviewer found the trio of matte enamel grates offers solid heat retention and straightforward seasoning, making them a practical swap for worn originals. Fit and durability are the main reasons to buy, while buyers should double-check their original part numbers and the unusual three-piece sizing before ordering.

Key Features

• Solid cast iron construction: 9.59mm thick rods provide strong heat retention and a heavy, durable feel that stands up to high grill temperatures.
• Matte enamel finish: The enamel coating helps prevent rust and makes the grates easier to clean after seasoning and regular use.
• Three-piece set: Includes two wider grates and one narrower grate to match the original layout for compatible Genesis II 400 series grills.
• Broad model compatibility: Listed to fit many Genesis II and Genesis 400 grills, including E-410, S-435, E-435, S-415 and LX variants when parts and sizes match.
• Replacement for OEM numbers: Sold as compatible with original part numbers such as 66097 and 66089 to simplify finding the right grill part.

Who It's For

This set is aimed at homeowners and grill enthusiasts who own a compatible Weber Genesis II 400 series or Genesis 400 model and need a durable replacement grate set that restores searing and heat retention. It is especially useful for those who prefer cast iron for its cooking performance and are comfortable maintaining seasoned surfaces.

Those who should look elsewhere include owners of older or non-400-series grills, or buyers who want porcelain-coated stainless steel grates rather than cast iron. Also check fit and part numbers carefully: because the set is three pieces with two wide and one narrow, users replacing individual damaged grates may need to replace all original grates for a correct match.

Pros & Cons

Pros

• Solid cast iron rods offer excellent heat retention and robust searing performance.
• Matte enamel finish reduces rust risk and simplifies cleaning compared with bare iron.
• Good fit for many 2017+ Genesis II and 2022+ Genesis 400 models when matched to part numbers.

Cons

• Some customers report mixed impressions of build appearance, noting the grates do not look as refined as original OEM finish.
• Because the set contains three identical-size pieces, replacing only one original grate may not match the factory two-wide/one-narrow layout without replacing all grates.

Specifications

Material	Solid cast iron, 9.59mm rods
Finish	Matte enamel
Package Quantity	3 pieces (two wide, one narrow layout)
Individual Size	18.75 in L x 11.14 in W (each)
Total Width	18.75 in L x 33.4 in W (combined)
Compatible Models	Weber Genesis II 400 series and Genesis 400 models (see part numbers)
Compatible OEM Numbers	66097, 66089, 7854 and similar

Our Verdict

The cast iron replacement grates are a practical, cost-effective option for owners of compatible Genesis II and Genesis 400 grills who want restored searing and lasting heat retention. They offer clear value through solid materials and easier maintenance, but buyers must confirm part numbers and the three-piece sizing before ordering to ensure a proper fit.

Frequently Asked Questions

Do these grates fit my Genesis II E-410?
They are listed as compatible with many Genesis II E-410 models, but confirm the original part number and measurements to ensure the three-piece set matches your grill layout.

Are the grates ready to use out of the box?
They should be seasoned before regular cooking; the matte enamel helps, but initial seasoning will improve nonstick performance and rust resistance.

Can I replace a single damaged grate?
Because the package contains three grates sized to match the original two-wide/one-narrow layout, replacing just one may not match factory arrangement unless you replace all original grates.