Parts for Thermador CGX304U: Rough-In Box Parts

The Gas Valve Cooktop is an OEM part for Bosch cooktops. This valve is responsible for controlling the flow of gas to the burners on the cooktop. It opens and closes to allow gas to pass through when a burner is turned on and stops the flow of gas when the burner is turned off. 

Causes of a bad gas valve can include wear and tear over time, issues with the valve mechanism such as stuck or blocked components, or damage from exposure to moisture or impact. 

Symptoms of a bad gas valve include:

• Burners not lighting or sparking repeatedly without igniting 
• Uneven or unpredictable burner flame heights
• Burners not getting hot enough for cooking
• Burners that cannot be turned on or off
• Gas leaks around the valve area

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

Used to hold down the jet holder assembly.

This gas burner jet holder assembly routes fuel through the orifice to the burner and secures the connection. The red 11,000 BTU version is designated for the right-front or left-rear burner, helping restore proper flame and heat output.

• Positions the jet and routes gas from the manifold to the burner for the specified heat output
• 11,000 BTU, red-coded variant designated for RF/LR burner location
• Provides a stable, serviceable connection between tubing and burner base for a consistent flame
• Symptoms include weak or irregular flame, failure to ignite, or incorrect flame size at the RF/LR burner

• Shut off gas supply and power; allow the appliance to cool before servicing
• Remove grates, burner caps/heads, and any panels needed to access the holder
• Support gas tubing and use two wrenches on fittings to avoid twisting or damage during removal/installation
• After installation, check all joints with an approved leak-detecting solution and verify flame quality

The Jet Holder with Nut is an OEM part for Bosch ranges and cooktops. It holds precisely machined jets that control gas flow from each burner valve.

Causes may be wear and deterioration from prolonged heating exposure. Physical impacts or damage accumulation over time could also compromise the jet holder.

Symptoms of a bad jet holder can include:

• Inability to adjust or maintain proper flame stability and heat output
• Irregular or uneven flame patterns between surface burners
• Potential gas leaks observed at jet connections

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

The Spark Module is an OEM part Bosch ranges and cooktops. This electronic part generates the high-voltage spark needed to reliably ignite the gas burners with the push of a button.

Causes can be issues like component failure over the thousands of ignitions it facilitates. Water ingress could also potentially cause problems. 

Symptoms of a bad spark module include:

• Unreliable or intermittent burner ignition requiring multiple ignition button presses
• One or more burners that will not ignite at all
• Occasionally flashing or error codes relating to ignition issues

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

This is a weld-style machine screw used to fasten components where a flush, secure attachment is needed. It provides a reliable fastening point for panels, brackets, and appliance assemblies. What it does:

• Secures panels or brackets by welding or mechanically fastening into place
• Provides a strong, vibration-resistant attachment for internal components
• Common replacement when original fasteners are missing, stripped, or damaged
• Helps maintain proper alignment and fit of appliance parts

• Intended for use where a welded or press-fit screw is specified by the manufacturer
• Use appropriate welding or fastening technique and PPE; avoid overheating nearby components
• If replacing a stripped or damaged fastener, verify thread size and engagement before installation

The Regulator is an OEM part for Bosch ranges. This regulator controls gas flow to the burners, ensuring they receive the proper amount of fuel to achieve the desired cooking heat levels.

Causes of a bad regulator include cracks, jets becoming clogged over time, or damaged thermostatic components that improperly sense temperature.

Symptoms of a bad regulator include:

• Burners that will not ignite or light unevenly
• Inability to adjust burner flames precisely
• Burners that become too hot or too cool unexpectedly
• Yellow burner flames instead of blue

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

The Cooktop Bracket Kit is an OEM part for Bosch cooktops. This bracket and hardware kit serves to securely fasten the cooktop surface to the underlying countertop.

Causes of a bad bracket can include wear and deformation from heavy cooktop use over time, or damage to fastening screws from accidental impacts.

Symptoms of a bad bracket and fastening kit include:

• The cooktop surface becoming loose, wobbly, or unstable during use
• Gaps appearing between the cooktop and countertop edges
• Reduced heat containment and risk of burns from loose surfaces

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

Size: 10 fl. oz. Used on glass, ceramic and porcelain cooktops.