Parts for Thermador PRSG304S: Burner Section Parts

The Spark Ignition Switch is an OEM part for Bosch ranges and cooktops. It controls the ignition of surface burner flames by emitting an electrical spark when activated.

Causes of a bad switch can be general wear and fatigue over thousands of start cycles. Exposure to moisture, dust or metal debris could also damage electrical components internally.

Symptoms of a bad spark ignition switch include:

• Burners failing to light even when valves are turned on
• Intermittent or irregular lighting of some burners
• No electrical sparks emitted from the ignition electrode

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

This gas pressure regulator controls and stabilizes incoming supply pressure to the appliance manifold, helping ensure consistent burner flames and reliable ignition. Replace if the original regulator is sticking or no longer maintaining correct pressure.

• Regulates incoming gas to the appliance's rated manifold pressure
• Helps maintain even flame height and proper combustion
• Supports reliable burner ignition and reduces flame-out from pressure swings
• Common symptoms include weak or uneven flames, yellow tipping, burners not lighting or not staying lit, or flames that are too high

• Disconnect electrical power and shut off the gas supply before servicing
• Observe the flow-direction arrow; install with outlet toward the appliance manifold
• Use approved gas-rated thread sealant on male threads only and leak-test all joints with a non-corrosive solution after installation

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.

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. 
 

This 1/4" gas supply tubing connects the appliance's gas line to the valve, providing a secure path for fuel so the unit can ignite and operate safely. Use when tubing is damaged, leaking, or replaced during valve service. What it does:

• Channels natural gas/LP from the household supply to the appliance valve
• Replaces cracked, corroded, or bent tubing that can cause leaks
• Helps stop symptoms like a persistent gas smell, failure to ignite, or intermittent burner operation
• Works with the appliance's inlet and control valve fittings to maintain proper gas flow

• Turn off the gas supply and electrical power before starting work
• Use approved fittings, thread sealant rated for gas, and test all connections for leaks after installation
• Do not modify or reuse damaged tubing; replace with exact-fit parts

TheTubing, 1/4 Gas Supply SV/RB, is an OEM part for Bosch gas ranges. This tubing delivers gas safely and efficiently from the supply to the range. The tubing is made from durable materials capable of withstanding the high pressures and temperatures associated with gas fuel, ensuring longevity and safety in your kitchen environment.

Causes for replacement can range from natural wear and tear over time, which may lead to cracks or leaks, to accidental damage during cleaning or kitchen renovations.

Symptoms of a malfunctioning gas supply tubing include:

• A noticeable gas odor near the appliance, indicating a potential leak.
• Inconsistent flame size or color on the range burners, which can signal an irregular gas supply.
• Difficulty igniting the range burners or an inability to maintain a consistent flame.

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

The Jet Holder is an OEM part for Bosch ranges. It is responsible for securely housing components that generate flames and distribute heat across the cooktop surface. The jet holder ensures proper airflow and fuel ignition during operation.

Symptoms of a bad jet holder include:

• Unsteady or unstable flames during cooking  
• Flames that cross-ignite between burners
• Inefficient heat transfer causing slow cooking times
• Loose, damaged, or missing jet holder components

Causes of a bad jet holder can include cracks developing from excessive heat cycling or debris buildup restricting gas/airflow. Mineral deposits may also cause fittings to warp and lead to improper alignment. 

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

This channel burner mounting secures a cooktop burner assembly in place so the burner stays aligned for proper operation. It replaces a damaged or bent mounting channel to restore stable burner positioning and safe function. What it does

• Holds the burner assembly in the correct position under the cooktop surface
• Prevents burner movement that can cause misalignment or uneven heating
• Helps maintain proper spacing for reliable ignition and flame stability
• Replaces bent, cracked, or corroded mounting channels that no longer secure the burner

• One channel burner mounting bracket (single mounting channel)

• Turn off gas and electrical power to the appliance before beginning work
• Remove cooktop components as required to access the burner mounting
• Handle edges carefully; part and surrounding sheet metal can be sharp
• Verify burner alignment and safe operation after installation

Used to hold down the jet holder assembly.

The Igniter Mounting Clip is an OEM part for Bosch ranges. It secures the igniter to the range top, ensuring it is properly aligned and stable for optimal ignition performance. The surface igniter is crucial for the ignition of gas burners, facilitating an immediate and safe flame to cook with.

Over time, the Igniter Mounting Clip can succumb to various forms of wear and tear, including corrosion from exposure to moisture, degradation from frequent heating cycles, or physical damage during cleaning or maintenance activities. 

Symptoms of a compromised Igniter Mounting Clip include:

• The surface igniter becoming loose or dislodged
• Difficulty in igniting the burner or uneven flames
• Noisy or irregular ignition sounds
• Visible signs of damage or corrosion on the clip

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

This is a cooktop burner igniter OEM replacement part for Bosch cooktops and ranges and is sold as an individual part. This part creates a spark that ignites the burner within your cooktop or stovetop and is made of a combination of metal and ceramic.

Causes of a bad ignition plug can include issues with the electronic module, worn electrodes that no longer spark reliably, or damaged wiring.

Symptoms of a bad ignition plug include:

• Gas burners that will not light or remain lit
• Delayed ignition of one or more burners
• Intermittent or no sparking from the ignition plug

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

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.

The Burner Head and Cap Assembly is an OEM part for Bosch ranges and cooktops. It contains the burner itself along with its protective cover.

Cracks or misshapen portions disrupt flame stability leading to inconsistent results.

Symptoms of a failed assembly include:

• Irregular or overly high flames from damage exposing gas jets
• Difficulty igniting or flames extinguishing prematurely
• Singed pans lacking the protection of an intact cap

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

The Grate Foot Kit is an OEM part for Bosch ranges. This kit includes the small rubber feet that attach to the bottom of the range grates, providing stability and preventing the grates from scratching the range surface.

Over time, the grate feet can wear out or become damaged due to exposure to high temperatures, regular cleaning, or accidental impact. Missing or worn-out feet can cause the grates to sit unevenly or scratch the range surface.

Symptoms of a bad grate foot kit include:

• The range grates sitting unevenly or wobbling
• Scratches or damage on the range surface
• Grates sliding or shifting during cooking
• Missing or visibly worn-out rubber feet

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

This 1/4-inch gas supply tube routes fuel between internal components of the appliance, such as the regulator/manifold and valve or burner assembly. Replacing a damaged line helps restore safe, consistent gas flow and dependable burner operation.

• Carries gas from the regulator/manifold to downstream valve/burner components
• Direct replacement for a kinked, cracked, or corroded tube
• Maintains proper routing and secure, sealed connections inside the unit

• Shut off gas and power; allow the unit to cool and ventilate the area before service
• Support fittings with two wrenches; avoid over-torquing and do not kink the tube
• After installation, check all joints with an approved leak-detection solution—never an open flame