Which Primo Accessories Fit My Grill? Junior, Large, XL, XXL & Round Guide
The right Primo accessory is the one listed for your exact grill size and cooking setup. Oval Junior, Oval Large, Oval X-Large, Oval XX-Large, and Round are different fits. A familiar shape or a similar product name is not enough to establish compatibility.
This guide matches specific Northwoods Grills listings to the models named in those listings. Start with your grill’s model label, purchase paperwork, or original order. If you have an older cooker, send us a model number and photos before buying a part that seats inside the grill.
Primo Heat Deflector, Rack, and Divider Compatibility
A heat deflector plate is the ceramic barrier. The supporting rack holds it in position. The firebox divider separates the charcoal area. Buying one does not automatically give you the others.
| Primo Oval size | Deflector plates | Support racks | Firebox divider |
|---|---|---|---|
| Junior | PG00325 | PG00313 | PG00314 |
| Large | PG00326 | PG00316 | PG00344 |
| X-Large | PG00324 | PG00333 | PG00334 |
| XX-Large | PG00323 | PG00375 | PG00371 |

What Fits the Primo Round?
The Round needs its own indirect-cooking components. The Round heat deflector rack PG00331 is a Round-specific support. Choose a Round-compatible deflector to go with it; do not substitute an Oval half-plate or assume an Oval divider fits.
Which Baking Stones and Rib Racks Fit More Than One Size?
Some accessories cover several models. That is an explicit fit listing, rather than a rule that all Primo accessories are interchangeable.
| Accessory | Models named in our listing |
|---|---|
| 13-inch glazed baking stone PG00340 | Oval Junior, Large, X-Large, and Round |
| 16-inch glazed baking stone PG00338 | Oval Large, X-Large, and Round |
| Five-slot rib rack PG00342 | Oval Junior, Large, X-Large, and Round |
| Nine-slot rib rack PG00341 | Oval X-Large |
XX-Large is not included in the multi-size listings above. Verify a separate XXL fit rather than extrapolating from the word “Large.” Leave room for food and airflow as well as the accessory itself.

Primo Covers Depend on the Stand or Table Too
Match both the cooker and its support. PG00409 is listed for X-Large and XX-Large All-In-One packages. PG00413 covers Round, Junior, and Large All-In-One packages. A cooker in a cart, cypress table, or island can require another cover even when the grill head is identical.
How to Avoid Ordering the Wrong Part
- Identify Oval versus Round and the exact size.
- Match the accessory’s SKU and fit statement.
- Check required supports and components.
- For a cover, identify the stand, cart, or table.
- For an older grill, verify generation compatibility before ordering.
Primo notes that certain pizza-oven and rotisserie accessories may not fit some pre-2015 grills. That warning does not mean every old grill is incompatible; it means model-specific confirmation matters.
Frequently Asked Questions
Does an XL accessory fit a Large?
Only if its fit listing explicitly includes both. The matched deflectors and dividers above have separate SKUs.
Does a deflector rack include the plates?
The separate rack listings are supports. Check a kit’s contents if you want both components in one purchase.
Ask Northwoods Grills to check your accessory fit with your grill model, age, and a photo.
Sources: Primo deflector racks, pizza-oven compatibility, and the product listings linked above.
Related Primo Buying Guides
- Primo Junior vs. Large vs. XL vs. XXL: Which Grill Size Should You Buy?
- Primo Heat Deflector vs. Firebox Divider vs. Pizza Stone: What Do You Need?
- Primo All-In-One vs. Grill Head Only: What’s Included and Which Should You Buy?
- Best Gifts for Primo Grill Owners: Useful Accessories by Model and Budget
- Primo vs. Kamado Joe: Oval Cooking Layout or Divide & Conquer?
- Primo vs. Big Green Egg

