GS4 Spirit II Grill Replacement Parts for Weber Spirit II E310

In this review of the GS4 Spirit II Grill Replacement Parts kit, the bottom line is clear: this is a sensible, cost-effective replacement set for owners of Weber Spirit II 300 series grills who need reliable flavorizer bars and cooking grates. The reviewer found the kit best for those who want an OEM-compatible fit and durable materials without paying dealer prices. The package replaces worn GS4 flame guards and grates, and the most compelling reason to buy is the combination of 304 stainless steel flavorizer bars with matte cast iron grates that restore even heat and the original cooking surface feel.

Key Features

• Compatibility: Designed to fit Weber Spirit II S310, E310, E320 and S320 models, making it an easy direct replacement for common GS4 grills.
• Stainless steel flavorizer bars: Five 15.3 in x 2.6 in bars made from 304 stainless steel resist rust and provide even heat and vaporization of drippings.
• Cast iron cooking grates: Two matte cast iron grates heat quickly and retain high cooking temperatures for better searing and consistent grill marks.
• Notched design: Each flavorizer bar includes four notches to improve ventilation and allow easier flame observation for steady, even burning.
• Complete kit: The 5-pack of flavorizer bars plus 2-pack of grates covers the main wear parts on a 3-burner Spirit II, simplifying a single replacement job.

Who It's For

This kit is aimed at homeowners who own a Weber Spirit II 300 series grill (S310, E310, E320, S320) from around 2013-2017 and who need a practical, well-fitting replacement for aging or corroded flavorizer bars and grates. It suits people who want durable materials - 304 stainless for the bars and matte cast iron for the grates - and who prefer parts that match original dimensions and fitment.

Those who should look elsewhere include owners of non- Spirit II models or grills with different grate dimensions; the listing stresses checking size and model before purchase. Also, buyers wanting porcelain-coated grates rather than raw cast iron should choose a different grate style.

Pros & Cons

Pros

• Good fit and compatibility with many Weber GS4 Spirit II models for straightforward installation.
• Durable 304 stainless flavorizer bars resist corrosion and help produce even heat across the burners.
• Matte cast iron grates heat quickly and improve searing and grill marks compared with thinner grates.

Cons

• Cast iron grates require seasoning and maintenance to prevent rust, which may not suit every user.
• Fit is model-specific, so buyers must verify grill model and dimensions to avoid ordering the wrong size.

Specifications

Our Verdict

The GS4 Spirit II replacement kit is a practical, value-focused option for Spirit II 300 series owners who need OEM-style flavorizer bars and cast iron grates. It delivers durable materials, good fitment and straightforward installation, making it a smart buy for those restoring grill performance without paying dealer premiums. Verify your model and be prepared to maintain cast iron grates for best results.

Frequently Asked Questions

Will these parts fit my Spirit E310?
Yes, the kit is specified to fit Spirit E310 and other Spirit II 300 series models, but you should confirm your grill model and grate dimensions before ordering.

What materials are used?
The flavorizer bars are 304 stainless steel and the cooking grates are matte cast iron for durability and heat retention.

Are the grates pre-seasoned?
No, cast iron grates typically require seasoning and routine care to prevent rust and ensure a nonstick surface.