904081 Nordyne 24 VAC ½″ Natural Gas Valve with LP Conversion Kit

Product Overview

904081 is a genuine OEM Nordyne 24 VAC gas valve assembly with a ½″ port for natural gas and includes a propane (LP) conversion kit. Priced at $121.81 each, it ships with the factory LP conversion spring and hardware. Availability: 134 units in stock.

Cross-Reference Part Numbers

Always verify cross-reference numbers with the original equipment manufacturer’s data plate or service manual.

Compatibility

This valve assembly directly replaces OEM valves on Nordyne, Miller-Nordyne, Coleman-Evcon, Ducane, and select private-label furnaces originally equipped with ½″ 24 VAC gas valves. Typical series and models include:

• Nordyne G3, G4, G5, G6 and L1RA furnaces

• Miller-Nordyne Classic® and Platinum™ series

• Coleman-Evcon II and Performance™ series

• Ducane state-of-the-art gas furnace lines

Always confirm compatibility by matching the furnace model number and consulting the unit’s data plate.

Technician Notes

• De-energize all line-voltage and 24 VAC control power and shut off the gas supply before servicing.

• Tag or photograph existing gas valve connections and manifold tubing to ensure accurate reassembly.

• Mount the replacement valve on the manifold flange; torque mounting screws per OEM specs.

• Verify 24 VAC at the valve coil terminals (R to C) before installation.

• For LP service, remove the natural gas spring and install the factory LP spring and orifice furnished in the kit.

• Adjust manifold pressure with a manometer: 3.5″ WC for natural gas, 10″ WC for propane.

• Perform a leak test on all tubing joints and manifold connections at 10″ WC air pressure.

• Energize the system and initiate a heat call; confirm proper valve opening, stable flame, and correct manifold pressure.

Additional Resources

• OEM Installation & Service Manual (PDF)

• Printable Gas Valve Conversion Checklist

• Manifold Pressure Adjustment Chart

• Video Tutorial: LP Conversion on Nordyne Valves