Genesis II Grill Grate Replacement Parts 2-Pack - Cast Iron Fit

In this review the Genesis II grill grate replacement parts are judged on fit, heat distribution and build for owners of Weber Genesis II 300 series grills. These two heavy duty cast iron grates measure 18.75 x 13.25 in each and replace original part numbers 66095, 66802 and similar, making them a straightforward swap for most 2017-and-newer Genesis II 300 models. The main reason to choose these replacements is the combination of precise dimensions and solid cast iron construction that restores even heat and reliable performance at a reasonable price.

Key Features

• Precise Dimensions: Each grate is 18.75 x 13.25 in so the two-piece set matches the factory footprint and simplifies installation without trimming.
• Direct Replacement: Designed for Genesis II 300 series (2017+), the grates are intended to match original part numbers such as 66095 and 66802 for a proper fit.
• Cast Iron Construction: Heavy duty cast iron spreads heat evenly across the cooking surface and improves sear marks compared with thinner materials.
• Two-Pack Convenience: Sold as a matched pair (18.75 x 26.5 in total) so both halves are uniform in finish and thickness for consistent grilling.
• Compatibility Coverage: Works with many Genesis II E, S, SE and LX variants in the 300 series, making it a versatile replacement for several models.

Who It's For

This replacement set is best for owners of Weber Genesis II 300 series gas grills from 2017 or newer who need a like-for-like set of cast iron grates to restore cooking performance. It suits backyard cooks who value even heat distribution and those who prefer durable, seasonable surfaces for consistent searing.

Those who should look elsewhere include owners of older Genesis 300 series grills that lack the II designation (model years 2007-2016) and buyers seeking stainless steel or porcelain-coated surfaces instead of raw cast iron.

Pros & Cons

Pros

• Good fit for supported Genesis II 300 series models and replaces common OEM part numbers.
• Heavy duty cast iron construction offers improved heat retention and searing.
• Two-piece matched set ensures consistent cooking surface across the whole grill.
• Customers report easy installation and strong value for money.

Cons

• Not identical to every original OEM unit according to some buyers, who note slight differences in finish or feel.
• Not compatible with Genesis 300 models without the II designation (2007-2016).

Specifications

Our Verdict

These Genesis II grill grate replacements offer dependable cast iron construction and precise sizing that make them a practical, cost-effective swap for many 2017-and-newer Genesis II 300 grills. They restore heat distribution and searing capability without complicated fitment, so they are a solid value for owners who want durable, matched replacement grates.

Frequently Asked Questions

Will these grates fit my Genesis II E-310?
Yes, they are intended to fit Genesis II 300 series models such as the E-310 and other listed E, S, SE and LX variants from 2017 onward.

What material are the grates made from?
The grates are heavy duty cast iron, chosen for heat retention and even cooking.

Are these compatible with older Genesis 300 grills?
No, they are not compatible with Genesis 300 models that lack the II designation (model years 2007-2016).