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Parts for the Munchkin 399 VWH Boiler

We stock the most common Munchkin Boiler repair parts. We also will obtain special-order Munchkin parts from the manufacturer or from one of our other sources.

  • Parts are listed in numerical order below. You can also view this list in a chart view with parts diagram.
  • This series of the 399 VWH Munchkin Boiler has a manufacture date from 11/02/02 to 12/19/06. If this is not your unit, please go to our main Munchkin Parts Page to find your unit.


Parts for the 399VWH R1 Boiler:

  • 7250P-005: Munchkin Gasket for Spark Electrode and Flame Rectification Probe

  • 7250P-019: Eco/High Limit

  • 7250P-049: Flame Rectification Probe (with Gasket 7250P-005)

  • 7250P-069: Screw for Spark Electrode and Flame Rectification Probe

  • 7250P-089: Thermodisc Flue Eco - 210° F

  • 7250P-150: Blocked Vent Pressure Switch

  • 7250P-160: Ceramic Target Wall

  • 7250P-161: Burner Door Ceramic Refractory

  • 7250P-279: Hot Surface Ignitor for HA (High Altitude) Models

  • 7250P-320: PC Connection Cable

  • 7250P-332: Display for 925 Control Board (includes Ribbon Cable)

  • 7250P-378: Control Board Fuse, 110 Volt, 6.3 AMPS

  • 7250P-386: Wiring Harness 9 Pin 120V for HA (High Altitude) Models

  • 7250P-390: Wiring Harness 5 Pin 120 Volt (Per the manufacturer, order new part number 7250P-696)

  • 7250P-392: Spark Cable

  • 7250P-423: Stainless Thermister (with Blue Connector) Inlet / Outlet

  • 7250P-499: Temperature / Pressure Gauge - 200 PSI

  • 7250P-540: Air/Gas Valve Assembly

  • 7250P-545: Air/Gas Mixer

  • 7250P-552: First Valve Solenoid

  • 7250P-553: Main Valve Solenoid

  • 7250P-576: Relief Valve 125 PSI, 791,000 BTU for Model 399M HP Only

  • 7250P-580: Relay Board

  • 7250P-588: Brass Tee (2 x 2 x 1)

  • 7250P-592: High Velocity Circulation Pump

  • 7250P-595: 1-1/2 Inch Mounting Flanges (2)

  • 7250P-596: Brass Reducing Coupling (1-1/2 x 2)

  • 7250P-597: Close Nipple 1-1/2

  • 7250P-599: Wiring Harness Low Voltage 10 Pin/20 Pin (discontinued)

  • 7250P-601: Wiring Harness 9 Pin 120 Volt

  • 7250P-612: Float Switch (Taco)

  • 7250P-613: Float Switch Paddles with Screws 1-1/4 Inch

  • 7250P-703: NIT Burner

  • 7250P-731: Control Board / Display Board Replacement for 925 Controller (7250P-317)

  • 7250P-737: USB Connector

  • 7250P-738: PC Connection Cable with USB Connector

  • 7350P-008: 926 Control Board

  • 7350P-009: Display Board for 926 Control Board

  • 7350P-013: Krom Shroder to Dungs Gas Valve Conversion (for units before 12/4/07) -- contact us for pricing

  • 7350P-020: Spark Electrode (with Gasket)

  • KGAVT0601CVT: Concentric Vent Termination Kit, 3 Inch

  • N1100: Condensate Neutralizer

  • SSV3.5: Mesh Screen -3-1/2 Inch Stainless Steel (3 Inch Pipe)

  • SSV4.5: Mesh Screen - 4-1/2 Inch Stainless Steel (4 Inch Pipe)

  • V1000: S.S. Outside Termination Vent Kit, 3 Inch

  • V2000: S.S. Outside Termination Vent Kit, 4 Inch


Getting an error code on your display? Here are common Munchkin Error Codes and their Remedies.