Costco 21118 Grill Parts

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Highest quality replacement parts for your Costco 21118 - Free USA shipping $49 or more* - No Sales Tax*

 

Costco 21118 owners manual and diagrams
Diagrams & owners manual not available for grill model# 21118. If you have a manual you're willing to share, please click here to send us an email with the attached manual. Thank You!

 


Replacement grill parts for the Costco model: 21118
All of the parts we have for Costco 21118 are shown on this page. If the part you're shopping for isn't included below, you might find it using the category buttons on the right side of the page. For example, if your looking for a Flame Tamer/Heat Plate and there are none here, click the Heat Plate button to see all of the Heat Plates we have for Costco grills. You will need to know the dimensions of your existing grids to help you find the right part.

To get the correct Costco 21118 BBQ parts
  • You should measure your existing parts and compare them to what we show here. This is best done with them removed from the grill.
  • Verify your Costco model number by checking the CSA appliance tag on your grill to make sure you have the correct model number. Do not rely solely on the owners manual as these are frequently mixed up at retail stores when the grills are assembled. You'd be surprised at how many folks have the wrong owners manual.
 


21118 Burners

44305-R 5-Pack Cast stainless steel burners for Costco model 21118.
  • 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 (Replaces Costco BULL-44305-X5)
Dimensions: 16” x 2 5/8”
Material: stainless steel
Weight: 16.25

$451.25
 

44305-R Cast stainless steel heavy-duty burner for Costco model 21118.
  • 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 (Replaces Costco BULL-44305)
Dimensions: 16” x 2 5/8”
Material: cast stainless steel
Weight: 4.0

$99.99
 

 





21118 Cooking Grids

16517-R 5-Pack Stainless steel cooking grates for Costco model 21118.
  • 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.



Part Number: BULL-16517-R-X5 (Replaces Costco BULL-16517-X5)
Dimension Front-to-Back: 19 1/2”
Dimension Side-to-Side: 7 1/2”
Material: stainless steel
Weight: 25.00

$385.00
 

16517-R Stainless steel cooking grate for Costco model 21118.
  • 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.



Part Number: BULL-16517-R (Replaces Costco BULL-16517)
Dimension Front-to-Back: 19 1/2”
Dimension Side-to-Side: 7 1/2”
Material: stainless steel
Weight: 5.00

$83.99
 

 





21118 Heat Plates

16521-R 5-PACK Premium grade stainless steel flame tamers for Costco model 21118.
  • 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).


Part Number: BULL-16521-R-X5 (Replaces Costco BULL-16521-X5)
Dimension Front-to-Back: 17 5/8”
Dimension Side-to-Side: 4 5/8”
Material: stainless steel
Weight: 4.5

$192.75
 

16521-R Premium grade stainless steel flame tamer for Costco model 21118.
  • Replacement for original Bull part# 16521.
  • Fits Bull-made 4 and 5-Burner grills.
  • SOLD INDIVIDUALLY.


Part Number: BULL-16521-R (Replaces Costco BULL-16521)
Dimension Front-to-Back: 17 5/8”
Dimension Side-to-Side: 4 5/8”
Material: stainless steel
Weight: .90

$47.13
 

 





21118 Accessories

Wundersmoke Maple Chips. These unique maple wood smoking chips add distinctive maple wood flavoring to your food. For use will all grills. One 1lb bag. Comes with reusable puck.

Part Number: BP-7
Weight: 1.0

$10.42
 

Stainless steel flipper. The ultimate spatula tool, specially curved for perfect flips every time. 18” overall.

Part Number: SF-1
Dimensions: 18
Material: stainless steel
Weight: 0.4

$15.90
 

Shish-ke-bab set. 6 chrome plated 14” skewers with convenient folding rack; folds out to 10” x 13 3/4”.

Part Number: 41338
Weight: 1.1

$22.60
 

Cast iron smoker box with six oblong venting holes. Fill with water-soaked wood chips and add smoke flavor to you food. Designed to release wood smoke.

  • Works with both charcoal and gas grills.
  • Easy to use and refill.
  • Long lasting cast iron.


Part Number: 00150
Dimensions: 5 1/4” x 8 3/8”
Material: cast iron
Weight: 3.90

$27.70
 

Non-Stick Wing Rack.

A convenient non-stick coated wire wing rack with folding legs, the best way to roast chicken legs and wings on the grill without the hassle of flipping, turning or sticking. For wings and drumsticks.



Part Number: 41551
Weight: 0.5

$12.09
 

Scrub brushes. Plastic grill scrubber. Cleans all types of cooking grids. Plastic grip handle.

Part Number: WB-7
Dimensions: 6” x 3 1/2”
Weight: 0.2

$5.23
 

 



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Costco grill model 21118 - Tuesday, May 12 2026

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More Costco grill models we have parts for
PC-2600L | PC-2600L (pre 2006) | PCA-2600L | PCA-2600L (pre 2006) | SGIR27LP | SGR27LP | SGR30 | SGR30M | SGR30MLP | Steadfast Two | TGR30LP | TGR38 | 1500111 | 1500131 | 2001SS-LP | 210001-LP | 21009 | 21011 | 21118CE | 21119 | 21119CE | 21128 | 21128CE | 21129 | 21129CE | 44328 | 44329 | 463230703 | 463241205 | 463242304 | 463269806 | 464246004 | 466242404 | 466242504 | 527036 | 720-0008-LP | 720-0011 | 720-0021-LP | 720-0033 | 720-0037 | 720-0038 Classic Pedestal | 720-0038-04U Classic Pedestal | 720-0039-LP | 720-0070-LP | 720-0077-LP | 720-0083-04R | 720-0108 | 720-0193 | 720-0432 | Complete list of Costco grill models...



*Orders for Costco grill model 21118 $49 and over ship free to the lower 48 states.
See shipping policy below for more info.


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Build Date: May 12 2026