Parts for Thermador SGS304ZB: 44 - Rough-In Box Components Parts

Used to hold down the jet holder assembly.

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

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 R/I box is the refrigerator control/interface module that routes power and signals between the main control and components. Replacing a faulty unit restores proper electrical communication and helps resolve intermittent or failed functions. What it does:

• Acts as an electrical interface between controls and components, routing signals and power.
• Can cause loss of specific functions (ice maker, dispenser, lights) when failing.
• May produce intermittent operation, no-response to controls, or communication errors.
• Used when diagnostics show the interface module is faulty or damaged.

• One R/I box (control/interface module)

• Disconnect power before servicing to avoid shock or damage.
• Ensure connectors are fully seated and wiring is routed as originally installed.
• Inspect mounting and surrounding components for damage; replace if needed.

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.

This blue spark electrode wire connects the oven/range spark electrode to the ignition module so burners or the oven spark reliably. Replacing a damaged or frayed wire restores proper ignition and reduces intermittent or no-spark problems. What it does

• Carries the high-voltage spark from the ignition module to the electrode so the gas ignites.
• Commonly fixes symptoms like burners or oven not sparking, intermittent ignition, or visible wire damage.
• Helps prevent arcing and erratic ignition when the original wire is cracked, burnt, or corroded.
• Matches the OEM shape/color for proper routing and fit in compatible models.

• One blue spark electrode wire (single wire as shown)

• Disconnect power and shut off gas supply before starting any work; follow all safety precautions.
• Handle porcelain/ceramic electrode tips and insulation carefully to avoid damage.
• Route the wire along the original path and secure any retainers; avoid contact with hot surfaces.

This spark electrode wire routes the ignition spark from the igniter/ignition module to the burner electrode so gas ovens and ranges can light reliably. It replaces a worn or damaged ignition lead to restore proper spark delivery. What it does:

• Carries the high-voltage spark from the ignition module to the burner electrode
• Enables ignition of the gas by delivering a consistent spark at the burner
• Common symptom repair: no ignition or intermittent sparking at a burner
• Can also address continuous clicking or weak spark issues when the lead is damaged

• One spark electrode wire (yellow)

• Turn off electrical power and shut off the gas supply before starting work
• Handle ceramic electrode and wire ends carefully to avoid cracking or contamination
• Ensure connections are secure and wire routing avoids contact with hot surfaces or sharp edges

This spark electrode wire routes ignition spark from the module to the oven/burner electrode so the appliance lights reliably. Durable insulated lead designed to restore consistent sparking and improve ignition performance. What it does:

• Conducts high-voltage spark from the ignition module to the electrode to ignite gas burners.
• Commonly replaces cracked, frayed, or heat-damaged ignition leads.
• Can resolve intermittent or no-spark ignition and burners that fail to light.
• Fits applications needing a single insulated black electrode lead.

• One black spark electrode wire as shown.

• Disconnect power and turn off the gas supply before starting any service.
• Handle the ceramic/insulator and electrode tip carefully; avoid bending or cracking.
• Ensure secure, clean connections at both ends; do not splice unless specified by manufacturer.

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 Tape, Foam is an OEM part for Bosch cooktops. This foam tape creates a tight seal between the cooktop surface and surrounding countertop. It helps contain spills and keeps external surfaces heat-isolated.

Causes of bad foam tape can include wear and breakdown of the adhesive over repeated exposure to cooking heat and cleaning chemicals.

Symptoms of a bad foam tape include:

• Fluids leaking down around the edges of the cooktop
• Hot surfaces outside the cooktop area that can cause burns
• Reduced heat containment impacting cooking efficiency

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