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Urban Islands 5-BURNER STAINLESS STEEL, ROTISSERIE, BUILT-IN, N.G. (NATURAL GAS)
We recommend you measure your old parts and compare them to what we show below. This will help insure that you get the correct replacement parts for your Costco grill. This is best done with the old parts out of the grill. Verify your Costco grill model number.
Replacement grill parts for Costco model: 21011
21011 Burners
44305-R 5-Pack Cast stainless steel burners.
- Replaces original Bull part# 44305
- Includes adjustable air shutter and screw in the venturi for adjusting air flow.
- Sold as a set of five (5) burners
Note: The original 44305 burner was a welded stainless steel burner. This replacement burner is a solid cast stainless burner, equivelant to OEM# 16516.
Part Number: BULL-44305-R-X5
Material: stainless steel
Weight: 16.25
Dimensions: 16 1/4” x 2 7/8”
44305-R Cast stainless steel heavy-duty burner.
- Replaces original Bull part# 44305
- Includes adjustable air shutter and a screw in the venturi for adjusting air flow.
- Sold individually
Note: The original 44305 burner was a welded stainless steel burner. This replacement burner is a solid cast stainless burner, equivelant to OEM# 16516.
Part Number: BULL-44305-R
Material: cast stainless steel
Weight: 4.0
Dimensions: 16 1/4” x 2 7/8”
21011 Cooking Grates
16517-R 5-Pack Stainless steel cooking grates.
- SET OF FIVE (5)
- Premium grade 304 stainless steel
- Solid stainless rods
NOTE: Some models refer to this part as a
Cooking Grid.
This part replaces original BULL part# 16517.
Made in USA
Part Number: BULL-16517-R-X5
Material: stainless steel
Weight: 25.00
Dimensions:
- Front-To-Back: 19 1/2″
- Side-To_Side: 7 1/2″
16517-R Stainless steel cooking grate.
- Premium grade 304 stainless steel
- Solid stainless rods
- Sold individually
NOTE: Some models refer to this part as a
Cooking Grid.
This part replaces original BULL part# 16517.
Made in USA
Part Number: BULL-16517-R
Material: stainless steel
Weight: 5.00
Dimensions:
- Front-To-Back: 19 1/2″
- Side-To_Side: 7 1/2″
21011 Flame Tamers
16521-R 5-PACK Premium grade stainless steel flame tamers.
- Replacement for original Bull part# 16521.
- Fits Bull-made 4 and 5-Burner grills.
- One required for each burner.
- Sold as a set of five (5).
Made in USA
Replaces Costco factory part# BULL-16521-X5
Part Number: BULL-16521-R-X5
Material: stainless steel
Weight: 4.5
Dimensions:
- Front-To-Back: 17 5/8″
- Side-To_Side: 4 5/8″
16521-R Premium grade stainless steel flame tamer.
- Replacement for original Bull part# 16521.
- Fits Bull-made 4 and 5-Burner grills.
- SOLD INDIVIDUALLY.
Made in USA
Replaces Costco factory part# BULL-16521
Part Number: BULL-16521-R
Material: stainless steel
Weight: .90
Dimensions:
- Front-To-Back: 17 5/8″
- Side-To_Side: 4 5/8″
21011 Accessories
HOW TO GRILL The Complete Illustrated Book of Barbecue Techniques. Steve Raichlen presents a full-color, step-by-step technique book that gets to the core of the grilling experience by showing and telling exactly how it's done. With more than 1,000 photographs, if features over 100 techniques and recipes, from how to set up a three-zone fire to how to grill a perfect prime rib, to grilling pizza, shellfish, vegetables, tofu, fruit, and s'mores.
Part Number: 0-7611-2014-9
Material: Paperback
Weight: 3.0
Dimensions: 8” x 9 1/4”
15” Stainless steel tong.
- Soft comfort grip
- Locking mechanism
Part Number: 40259
Material: stainless steel
Weight: 0.14
Dimensions: 15
Stainless Steel Basting Set.
Measurements inside the stainless steel bowl for accurate sauce preparation. Includes silicone basting brush.
Part Number: 14913
Material: stailess steel
Weight: 0.5
Aluminum foil grilling trays. Package of three.
- Heavy duty aluminum foil
- Re-usable
- Great for grilling delicate foods like fish and veggies
Part Number: 50426
Weight: 0.4
Dimensions: 9” x 13”
GrillPro EZ Check Gas level indicator. Accurate from -22° to 104°F. Magnetic back. Works on all sizes of tanks.
This tank gauge will monitor your propane level, while you grill, and let's you know when you're running low on gas.
The magnetic tank gauge offers fast, accurate propane level monitoring for any size LP tank. The magnetic backing makes it easy to attach, remove, and reuse across multiple tanks—perfect for grilling, camping, patio heaters, and more
Made in USA
Part Number: 00030
Weight: 0.1
Costco 21011 - Oct 15 2025
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