Primo PG00371 Oval XXL Firebox Divider

What Problem This Part Solves

Using the entire XXL firebox for a smaller meal can require more charcoal than necessary and makes creating separate temperature zones more difficult. The Primo PG00371 divides the large firebox into two sections, allowing charcoal to be concentrated on one side.

This makes it possible to create a high-temperature direct cooking zone on one side and a lower-temperature indirect zone on the other. It can also reduce the amount of natural lump charcoal needed when cooking smaller quantities of food.

Key Features

• Genuine Primo accessory
• Primo part number PG00371
• Heavy-duty cast iron construction
• Creates two separate charcoal and heat zones
• Allows direct and indirect cooking at the same time
• Helps reduce charcoal consumption during smaller cooks
• Designed specifically for the Primo Oval XXL 500

Primo's current product information identifies PG00371 as the Cast Iron Firebox Divider for the XXL, and its 2026 product list shows it as a recommended accessory for the XX-Large charcoal grill.

Compatibility / Fits Models

Fits:

• Primo Oval XXL 500
• Primo Oval XXL Charcoal Grill
• Primo XX-Large Charcoal Grill
• Primo PGCXXLH Oval XXL
• Primo PGCXXLC Oval XXL All-In-One

The PG00371 is specifically sized for the Primo Oval XXL/XX-Large firebox. Other Primo grill sizes use different firebox dividers.

Installation / Use Instructions

1. Make sure the Primo grill is completely cool before installing the divider.
2. Position the PG00371 vertically inside the Oval XXL firebox to separate the charcoal area into two sections.
3. Add charcoal to one or both sides depending on whether you want direct, indirect, or two-zone cooking.

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FAQ Section

Does this fit my grill?
The Primo PG00371 is specifically designed for the Primo Oval XXL 500 / XX-Large charcoal grill. It is not the correct divider for the Oval XL, Large, or Junior models, which use different part numbers.

What is this part made of?
The Primo PG00371 is made from heavy-duty cast iron designed to withstand the high temperatures produced inside a ceramic charcoal grill.

How long should this part last?
Cast iron is well suited for high-temperature grilling and can provide years of service when properly maintained. Keeping the divider dry and removing excessive ash and moisture after cooking can help reduce corrosion.

How do I install it?
Place the divider inside the Oval XXL firebox so it separates the charcoal area into two sections. No complicated installation is required, and the divider can be removed when the full firebox is needed.

Why choose this replacement part over others?
The Primo PG00371 is specifically designed for the shape and size of the Oval XXL 500 firebox. Its cast iron construction allows you to create two distinct cooking zones while also reducing the amount of charcoal required for smaller cooks.