Arkla GTB18 Grill Parts

Highest quality replacement parts for your Arkla GTB18 - Free USA shipping $49 or more* - No Sales Tax*

Arkla GTB18 owners manual and diagrams

Diagrams & owners manual not available for grill model# GTB18. 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 BBQ grill parts for Arkla model: GTB18

All of the parts we have for Arkla GTB18 are shown on this page. If you can't find the part you need below, click on the appropriate category button on the right side of the page. For example, if your looking for a heat indicator and there are none here, click the heat indicator button to see all we have for Arkla grills. Knowing the dimensions of your existing part will help you find the right part.

To get the correct Arkla GTB18 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 Arkla 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.

GTB18 Venturis

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Single Gasket Kit Economy Burners

Part Number: SHK4
Weight: 0.01

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Straight adjustable single venturi.

Adjusts from 7” to 10”.
Requires minimum 1 7/8” hole in grill bottom for venturi to pass thru. For grills with smaller holes, see venturi part# 72401.
Can be used in pairs for twin venturi applications.

Includes all necessary gaskets and screws/nuts.

Part Number: 70401
Dimensions: 10
Material: zinc plated steel
Weight: 0.6

==> All Arkla Venturis.

GTB18 Cooking Grids

Cooking grid not known for Arkla model GTB18. Our parts information for this grill model is incomplete, and we really don't know with certainty which cooking grid fits this model. It may be that we have the part but don't show it here due to data or other error.

If you know the original OEM part number, try searching for it in the search box at the top of this page.

You can also browse through all of the Arkla cooking grids we carry. If we don't have the exact fit grid for your grill, we may have a suitable replacement part. Measure your existing part as well as the the grid support area of the grill so you'll know exactly what size grids will fit.

If you have this grill model and know the number and dimensions of your original cooking grids, please share this information with us. Click here to send an email to our GrillDr that includes this information. We greatly appreciate your help.

Part Number: CG-DUMMY
Weight: 1.0

==> All Arkla Cooking Grids.

GTB18 Accessories

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Basting brush with angled oak handle. 18” overall length.

Part Number: BB-5
Dimensions: 18
Weight: 0.8

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Venturi Tube 12” Brush. Recommended by all grill manufacturers. Specially designed flexible brush to clean venturis of spider webs and other obstructions that can cause flashback fires. Stainless steel.

Part Number: VTC-B
Material: stainless steel
Weight: 0.3

==> All GTB18 Accessories.

BBQ Part Categories

Arkla gas grill GTB18 - Tuesday, Jun 10 2025

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GF424-217SB \| GF424-SB \| GF424-SL \| GF430-217-SB \| GF430-286-EB \| GF430-286-EI \| GF430-286-EL \| GF430-292-EB \| GF430-292-EL \| GF430-329-EA \| GF430-329-EI \| GF430-329EL \| GF430-EB \| GF430-EI \| GF430-EL \| GF430-SB \| GF430-SI \| GF430-SL \| GF540-286-EB \| GF540-286-EL \| GF540-286-SB \| GF540-292-E1 \| GF540-292-EB \| GF540-292-EI \| GF540-292-EL \| GF540-292-ELV \| GF540-292-EUB \| GF540-330 \| GF540-330-EAV \| GF540-330-EI \| GF540-330-EI-1 \| GF540-330-EIV \| GF540-E12 \| GF540-EA \| GF540-EB \| GF540-EI \| GF540-EI2 \| GF540-EIV \| GF540-EL \| GF540-ELV \| GF540-EVB \| GF540-SB \| GP304-3535LL \| GP304-35L \| GR0909 \| GR1515 \| GR1515 post \| GR1515 upfront \| GR1515-1 \| GR1515-160-SR \| Complete list of Arkla grill models...

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