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Customer Questions and Answers for Venturi Gas Tube by Bosch

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Manufacturer Part
4.89 (64)
By: Bosch
Part Number: OEM8475789
Manufacturer Part Number: 00189023

The Venturi Gas Tube is an OEM replacement part for Bosch gas cooktop ranges. Its primary function is to ensure an optimal gas/air mixture for consistent and efficient burner combustion, thereby enhancing the overall performance of the cooktop.

Causes involve normal wear of internal components from continuous heating and cooling cycles. Corrosion damage may also disrupt the venturi tube over time.

Symptoms of a faulty venturi gas tube include:

  • Unstable or hard-to-control flame levels
  • Potential issues shifting burner flames out of their intended position
  • Safety risks including carbon monoxide from improper fuel/air balance

This OEM Bosch part is also compatible with Thermador, Gaggenau and some Kenmore models.

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Questions & Answers

For Bosch Venturi Gas Tube (Part Number: OEM8475789)

1 Answer

Rich, It does appear that this would use a 20 MM socket to remove the venturi tube.

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1 Answer

Hello Jed,      The natural orifices are only available by purchasing the orifice tubes. You will need to order five of them for this unit. 12003348, 12003351, two 12003352, and 12003350. I'm sorry but this part 12003350 has been discontinued by the manufacturer and no satisfactory substitutions have been provided. Thank you for your patience and understanding in this matter.

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1 Answer

Terry, the smallest orifices, and the 10.7mm venturis are going to go to the front left and the right rear. The next two orifices that are identical to each other and the 3.7mm venturis are going to go to the front right and left rear burners. The final orifice and venturi will be for the center.

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1 Answer

Ole, unfortunately, as the jet assembly has twisted off, the jet assembly would need to be gripped securely while attempting to unscrew the venturi tube since that portion of the top is not secured. If the other venturi tubes are seized like the ones that had broken, the burners can be turned on to heat the venturi tubes for a few minutes, turn the flame off, and use a damp cloth to cool the center of the venturi tubes, this will loosen them up to be removed.

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1 Answer

Hello Bruce. The The part number for the center venturi you are looking for is AP2825260. Thank you.

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1 Answer

Tyler, Yes you would want to get new venturi tubes for the conversion back to natural gas for this unit.

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John for Model Number SGSX365CS/02

The center burner on this Thermador cooktop won't light. The igniter gets a weak spark, and there appears to be a crack in it. I want to replace the igniter, which requires removing the Venturi tube. I cannot figure out what size socket to use. Does anyone know what size socket to use? The parts list says Venture 10.7mm, but a 19mm socket (the biggest I currently own) is too small. A 13/16" socket is just a little too big and 3/4" is too small. Thanks.

1 Answer

John, Unfortunately we do not have a size of what socket would be used for this but would suggest trying to use an adjustable wrench to get the venturi off.

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1 Answer

Jbur, Unfortunately we are not showing a conversion kit back to Natural and not showing any parts on this unit.

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