Visual Parts Finder
Don't know the part number? Use the exploded parts diagram to identify major components on the Suburban SW12D 12-gallon gas DSI RV water heater, then open the permanent manufacturer part page and compare supplier inventory when available.
Exploded parts diagram
Select a highlighted item number
These component names and manufacturer identifiers are rendered as normal page content for search and accessibility. Supplier availability is separate from the persistent part identity. Replacement references can vary by serial number and revision.
Part # 520814
Controls the 12V direct-spark ignition sequence for the gas side of the water heater.
Search aliases: control board, ignition module, module board
Related / older references: 520741
View 520814 part details & availabilityPart # 161230
Safety valve that relieves excessive tank pressure or temperature.
Search aliases: pressure relief valve, T&P valve, temperature pressure valve
Related / older references: 161157
View 161230 part details & availabilityPart # 232258
Creates the ignition spark and senses flame at the burner assembly.
Search aliases: spark electrode, igniter electrode, electrode kit
Related / older references: 525005
View 232258 part details & availabilityPart # 010843
Directs the LP-gas flame into the combustion tube to heat the tank.
Search aliases: burner, burner tube, burner with orifice
Related / older references: 011030
View 010843 part details & availabilityPart # 233514
Sacrificial magnesium rod that helps protect the steel water-heater tank from corrosion.
Search aliases: magnesium anode, water heater anode rod, tank anode
Related / older references: 232767, 233516
View 233514 part details & availabilityPart # 233534
Monitors tank temperature for the 12V gas-control circuit and provides high-temperature protection.
Search aliases: DC thermostat, ECO thermostat, high limit switch
Related / older references: 232282, 232319
View 233534 part details & availabilityPart # 161109
Opens and closes LP-gas flow to the burner when commanded by the ignition controls.
Search aliases: LP gas valve, solenoid gas valve, water heater gas valve
Related / older references: 161255
View 161109 part details & availabilitySW12D production spans component revisions. A visually similar gas valve, burner, thermostat, or electrical part is not automatically interchangeable. Compare the original part marking, appliance serial number, and fitment notes before ordering.
RVPartScan searches multiple supplier inventories by exact part number, brand, appliance, or description. If your component is not highlighted here, search the identifying number printed on the original part.
Browse rv water heater partsThe exploded illustration is referenced for part identification and linked to its source above. RVPartScan's hotspots, replacement-reference notes, and supplier links are independent annotations. Always verify fitment against current manufacturer service information and use qualified service help for LP-gas or 120V electrical work.