Home » Millivolt Gas Valve NG Replacement for Quadrafire 040-500 – NBK-20983
Quadrafire

Millivolt Gas Valve NG Replacement for Quadrafire 040-500 – NBK-20983

Special order item - may require extra time to fulfill and ship. Special order parts are non-returnable.

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SKU: SO-20983
$176.48
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Millivolt Gas Valve – Natural Gas – NBK-20983

The NBK-20983 Millivolt Gas Valve (Natural Gas) is a direct replacement for Quadrafire 040-500 and a wide range of compatible fireplace and hearth systems. This valve provides dependable millivolt gas control for standing pilot applications.

Designed for natural gas (NG) systems, this valve supports safe ignition, flame stability, and consistent heating performance in fireplaces, gas stoves, and hearth appliances.

Key Features

  • Millivolt Operation: Designed for standing pilot systems
  • Natural Gas (NG): Compatible with NG fuel type
  • Direct Replacement: Replaces Quadrafire 040-500
  • Multi-Brand Compatibility: Works with numerous fireplace manufacturers
  • Reliable Gas Control: Ensures stable burner and pilot performance

Specifications

  • SKU: 20983
  • Category: Hearth Parts, Gas Valve
  • Fuel Type: Natural Gas (NG)
  • Valve Type: Millivolt
  • Replaces OEM: 040-500

Direct Replacement For

  • Quadrafire: 040-500
  • Avalon / Travis Industries: 05-02-00181, 05-02-00238, 250-02665
  • Continental: W725-0036
  • Heatilator: 040-500
  • HPC Fire: 200-K
  • IHP / Ironstrike / Lennox: H5937
  • Majestic / Majco / Insta-Flame: 51833, 52779
  • Mendota: 05-02-00181, 05-02-00238
  • Monessen / Lexington Forge / Vermont Castings: 52779
  • Montigo: RGC1044R
  • Napoleon: W725-0036, WS-725-036
  • Lopi / Fireplace Xtrordinair: 05-02-00181, 05-02-00238

Why Choose NBK-20983?

The NBK-20983 Millivolt Gas Valve offers a dependable replacement solution for restoring proper gas flow and ignition performance in natural gas fireplaces and stoves. It is engineered to meet OEM compatibility standards across multiple major hearth brands.

Installation Tips

  • Turn off gas supply and disconnect power before installation.
  • Confirm fuel type (Natural Gas) before installing.
  • Use approved thread sealant for gas fittings.
  • Check all connections for leaks after installation.
  • Professional installation is strongly recommended for gas components.

Pairs Well With

Thermocouples, Pilot Assemblies, Igniters, Gas Valve Wiring Harnesses, Fireplace Gasket Kits

SPECIAL ORDER NOTICE: This item is sourced through our special order program. Please allow 1–2 business days for processing prior to shipment.