66795 GS4 Flavorizer Bars for Weber Genesis II 300 Series - Heavy Duty

Our review of the 66795 GS4 Flavorizer Bars finds they are a practical, heavy duty replacement for owners of Weber Genesis II 300 and LX 300 grills who want to restore even heat distribution and smoky flavor. These bars match the original design while using thicker 16GA porcelain-enameled steel and solid workmanship, so they are aimed at people who need durable flame guards that resist high heat and corrosion. Install one pack of five and the grill will behave and look much closer to new.

Key Features

• Direct fit: Designed to replace Weber Genesis II E-310, S-310 and compatible 300 series models to ensure a correct fit without modification.
• Upgraded thickness: Built from 16GA porcelain-enameled steel that feels substantially heavier and more durable than many third-party bars.
• Solid weight: Each bar weighs about 1.21 lb and the pack totals just over 6.06 lb, which helps them stay stable under frequent use.
• Even heat and flavor: The bars vaporize drippings and provide even heat distribution so food picks up the signature smoky flavor again.
• Observation cutouts: Two semilunar openings on each side let you see burner flame status for easier temperature control.
• Resists corrosion: Porcelain enameled finish and smooth surface improve high temperature corrosion resistance and keep a tidy appearance.

Who It's For

These flavorizer bars are best for owners of Weber Genesis II 300 series grills (2017 and newer) including E-310, E-315, E-330, E-335 and LX E-340/S-340 models who need a straightforward replacement that restores performance and appearance. They suit cooks who regularly grill and want components that stand up to frequent high-heat use without warping or premature corrosion.

They are not for users of side-mount control models or any Genesis I series grills since the fit will be incompatible. Customers who prefer original factory-labeled parts may also choose OEM parts instead of this upgraded third-party set.

Pros & Cons

Pros

• Excellent fit and function for compatible Genesis II 300 models, making installation quick and easy.
• Heavy 16GA construction provides durability and a more solid feel than many aftermarket alternatives.
• Porcelain-enameled finish offers improved corrosion resistance and a clean, dark shiny look.
• Semilunar cutouts help monitor burner flames for better temp control while cooking.

Cons

• Not compatible with Genesis I series or side-mount control models, so fit must be checked before purchase.
• Heavier weight means a pack is somewhat bulky and may require care when handling during install.

Specifications

Our Verdict

The 66795 GS4 Flavorizer Bars are a solid value for Genesis II 300 series owners who want a durable, direct-fit replacement that restores even heating and smoky flavor. The upgraded 16GA porcelain-enameled steel construction and visible flame cutouts deliver practical benefits for regular grill use, making this five-pack a sensible, cost-effective choice for maintenance or refresh.

Frequently Asked Questions

Will these bars fit my Genesis II 310 grill?
Yes, they are designed for Genesis II E-310 and S-310 models from 2017 and newer; compare length and width to your originals to confirm fit.

How many bars are included in one pack?
The package contains five flavorizer bars, each measuring 17-1/8 in by 3 in by 2-1/8 in.

Are these bars corrosion resistant?
The porcelain-enameled finish and smooth surface improve corrosion resistance at high temperatures compared with plain steel options.