Thermador Range / Cooktop / Oven Gas Conv Kit Parts

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.

This replacement jet holder fits the 15,000 burner on gas cooktops and ranges. It supports the orifice and channels gas to the burner head, helping restore a stable flame and consistent heat when the original holder is damaged or corroded.

• Positions and secures the orifice for the 15,000 burner
• Routes gas from the valve/manifold to the burner head
• Helps maintain proper flame shape and output
• Replace if cracked, warped, or corroded; symptoms can include weak or uneven flame, yellowing, or difficulty lighting at that burner

• Shut off gas supply and disconnect power before servicing
• Remove grates, burner caps, and heads; raise or remove the cooktop surface to access the holder
• This holder is specific to the 15,000 burner position; transfer the orifice and any seals as required
• After reassembly, check all gas connections for leaks with a soap-and-water solution and verify burner operation

This Venturi is an OEM part for Bosch Ranges. It plays a role in supplying air to the burner for proper combustion. Continuous exposure to heat and debris can cause this part to degrade or malfunction.

What Causes a Bad Venturi: 
Exposure to heat and debris from cooking can cause the venturi to deteriorate over time. Blockages or clogs in the venturi can also affect its functionality.

Symptoms of a Bad Venturi:

• Uneven flame or inconsistent burner operation
• Reduced gas flow to the burner
• Burner flame discoloration

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

This jet holder mounts in the burner assembly for a 12,000 BTU burner. It positions and secures the orifice (jet) and helps seal and align the gas path so the burner lights reliably and produces a steady flame.

• Holds and aligns the burner orifice for the 12,000 BTU burner
• Provides a sealed passage from the valve to the burner head
• Helps restore proper flame height and pattern when the original holder is stripped, cracked, or corroded
• Common symptoms: weak or uneven flame, burner won't light, or jet/orifice will not seat securely

• Shut off gas supply and power; allow the appliance to cool before starting
• Remove grates, burner caps, and burner head to access the holder
• Transfer the existing orifice/jet to the new holder; tighten fittings carefully—do not overtighten into soft metal
• Reassemble, restore gas, and perform a leak check with an approved solution

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.

This burner venturi is the air-gas mixing tube between the orifice and burner head on select gas cooktops and ranges. The 10.7 mm size matches specific burners. Replacing a clogged or damaged venturi restores proper flame and dependable ignition.

• Mixes incoming gas with primary air and channels it to the burner head
• Can help resolve weak/uneven flame, yellow tipping, or delayed ignition when the original venturi is restricted or damaged
• Supports consistent heat output and stable blue flames on the matched burner
• Installs between the orifice holder/nozzle and the burner base

• Shut off gas supply and power; allow the appliance to cool completely
• Remove burner cap and head; note the venturi's orientation before removal
• Clear debris from the orifice area without pushing material into the jet
• Reassemble, restore gas, then leak-test and verify proper flame pattern

This 13.7 mm venturi is the burner mixing tube used on select gas cooktops and ranges. It blends gas with air to create a stable flame and helps restore consistent burner performance when the original is clogged or damaged.

• Mixes gas from the orifice with air to support proper ignition and flame quality
• Helps maintain a steady blue flame and even heating
• A restricted or damaged venturi can cause weak or uneven flames, delayed ignition, yellow/orange flames, or popping/lifting
• Replacing a corroded or blocked venturi can improve burner performance

• Shut off gas supply and power; allow the surface to cool before servicing
• Remove grates, burner caps, and burner head to access the venturi; note orientation and routing
• Seat the venturi fully over the orifice; transfer/reuse any original screws, spacers, or gaskets if applicable
• Restore gas and check connections with a soapy-water test; verify flame height and quality

This LP main jet regulates propane flow to a surface burner to maintain a clean, stable flame. Replace a clogged or incorrect jet to restore proper burner performance, especially when converting a cooktop or range from natural gas to LP.

• Meters LP gas to the burner head for correct flame size and combustion
• Direct replacement for a damaged, clogged, or incorrect jet during service or LP conversion
• May help with yellow/sooty flames, weak or overly high flames, uneven heating, or delayed ignition

• Shut off gas and power; allow the appliance to cool completely
• Remove grates, caps, and burner head to access the orifice holder
• Start the jet by hand, then tighten gently with the correct tool—do not overtighten
• After installation or any LP conversion, leak-test connections and verify a steady blue flame; other jets and the regulator may also require LP settings per the model's instructions

This jet holder secures the jet/nozzle assembly, keeping it correctly positioned for consistent flow and performance. Replacing a cracked or loose holder restores proper alignment and helps prevent leaks, drips, or irregular spray from the outlet.

• Holds the jet/nozzle firmly in place to maintain directed flow
• Keeps the jet aligned for even, reliable output
• Helps seal the connection to reduce drips at the fitting
• Typical symptoms: loose or missing jet, visible cracks, leaks, weak or erratic spray

• Disconnect power and shut off the applicable supply to the appliance before servicing
• Access the jet assembly and note the holder's orientation for correct reinstallation
• Inspect any O-rings/seals at this connection and replace if worn or damaged
• Reassemble carefully and avoid overtightening; test for proper flow and no leaks

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

This jet holder assembly secures the burner orifice and delivers the correct-sized gas jet for a 12,500 BTU natural gas burner, helping restore proper flame size and consistent ignition. What it does:

• Holds the burner orifice in the correct position so gas flows through the proper jet
• Provides the factory-sized orifice for a 12,500 BTU natural gas burner to maintain intended flame height
• Helps correct weak or uneven flames caused by a missing, damaged, or incorrect jet holder
• Supports reliable ignition when installed and aligned properly

• One jet holder assembly (blue) with the 12,500 BTU natural gas orifice installed

• Turn off the appliance and shut off the gas supply before starting any work
• Only install the exact orifice variant specified for your appliance; confirm color/marking and orientation before tightening
• Re-check all gas fittings and perform a leak test after installation

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 orifice is the small, calibrated gas jet used in the oven burner to control natural gas flow for proper combustion and consistent heat. It replaces a worn or clogged orifice to help restore reliable oven ignition and baking performance. What it does:

• Directs and meters natural gas to the oven burner for correct flame size and stability
• Helps resolve symptoms like weak or uneven burners, weak ignition, or yellow/sooting flames when caused by a restricted orifice
• Used on the oven top/burner assembly where a #38 sized jet is specified
• Fits into the burner orifice holder and works with the existing regulator and valve

• Install only after shutting off the gas supply and following all safety procedures; check for leaks with a soapy water solution or approved leak detector
• Use correct tools and avoid damaging the orifice tip; thread carefully to prevent cross-threading
• Do not modify the orifice; replace with the exact specified size to maintain safe operation