Kamado Joe Jr. Replacement Ceramic Firebox
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Usually ready in 2 hoursFor 20 years, we’ve helped grillers get the most out of their ceramic grills with racks and accessories that fit right and built to last. Whether you're a seasoned pro or just getting started — if you have questions about fit, features, or what you really need, we're here to help
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Fast, Reliable Shipping
Most orders ship out same or next business day. And, shipping’s on us for orders over $99.
Live in the DFW metroplex? Swing by and pick it up in-store — we’ll have it ready. Our retail store is located in Denton.
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Tips & Resources
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Product Description
Lower Ceramic Firebox for the Kamado Joe Jr.
Replace a cracked, broken or damaged firebox with a genuine Kamado Joe Jr. replacement ceramic firebox.
The firebox sits in the lower body of the Joe Jr., surrounding the charcoal fire and supporting the ceramic fire ring above it.
The opening in the front of the firebox aligns with the grill's lower draft door, allowing incoming air to flow into the charcoal chamber and feed the fire.
Unlike the multi-piece AMP FireBox used in larger Kamado Joe models, the Joe Jr. uses a single-piece ceramic firebox with a separate ceramic fire ring positioned directly on top.
The image below shows the Joe Jr. firebox sitting directly under the fire ring. The fire ring is not included.
Important: This ceramic firebox is specifically sized for the Kamado Joe Jr.
Ceramic Firebox Highlights
- Genuine Kamado Joe Replacement: Factory replacement ceramic firebox for the Joe Jr.
- Lower Fire Chamber: Sits inside the lower ceramic body and surrounds the charcoal fire.
- Supports the Fire Ring: The upper edge provides the flat rim for the separate Joe Jr. ceramic fire ring.
- Directs Incoming Air: The front opening aligns with the lower draft door so combustion air can flow into the charcoal chamber.
- High-Temperature Ceramic: Designed for repeated heating and cooling around the charcoal fire.
- Drop-In Replacement: Fits into the lower body of the Joe Jr. with no mounting hardware required.
When Should You Replace the Firebox?
Hairline cracks in ceramic components do not always prevent the grill from operating normally. Replacement becomes more important when the firebox is badly cracked, broken, missing a section or can no longer securely support the fire ring.
Damage around the lower air-intake opening or upper supporting edge can also affect how the firebox fits and how the fire ring sits above it.
How the Joe Jr. Firebox Fits
Set the ceramic firebox into the lower body of the Joe Jr. with the large opening aligned with the grill's lower draft door. This keeps the airflow path open from the lower vent into the charcoal chamber.
Once the firebox is properly seated, place the separate ceramic fire ring evenly on top to complete the Joe Jr. interior ceramic assembly.
Product Details
- Kamado Joe Part Number: KJ-CFB13
- Fits: Kamado Joe Jr.
- Grill Model: KJ13RH
- Material: High-temperature ceramic
- Type: Genuine Kamado Joe replacement firebox
What's Included: One genuine Kamado Joe Jr. ceramic firebox. Ceramic fire ring, charcoal grate, cooking grid, heat deflector and other grill components are not included.
Brand Compatibility & Product Engineering
Ceramic Grill Store is an independent manufacturer and retailer of heavy-duty kamado accessories. We are not affiliated with or endorsed by Kamado Joe, 26North Partners LP or other grill manufacturers referenced on this page.
Since 2005, Ceramic Grill Store has engineered kamado accessories designed to fit and expand the capabilities of select ceramic grills and cooking systems.