Modine 3H0337490006 Conversion Kit

The Modine 3H0337490006 Conversion Kit is a field-proven solution designed specifically for transitioning high-efficiency Modine unit heaters from natural gas to liquid propane (LP). As a genuine OEM Modine part, this kit ensures strict adherence to manifold pressure requirements and burner orifice sizing for reliable combustion performance. This Natural->LP Gas Conversion Kit is engineered for specific furnace control codes and chassis sizes, making it critical to verify your heater's rating plate before installation. Proper fuel conversion requires precision, and this kit includes the necessary main burner orifices and gas valve regulator spring to maintain a consistent 10" W.C. manifold pressure. Using the 3H0337490006 prevents common issues such as soot buildup and irregular ignition sequences often found with non-OEM alternatives. For contractors, this is a standard truck-stock item for Modine Hot Dawg and industrial heater fuel conversions in regions where LP is the primary fuel source. Ensure all leak testing is performed at the inlet and outlet pressure taps post-installation.

• Precision Machined Orifices: Provides the exact flow rate required for liquid propane at 2,500 BTU/ft³, ensuring efficient heat transfer without over-firing the heat exchanger.
• Regulatory Compliance: Meets manufacturer specifications for safe natural gas to propane conversion, supporting proper equipment operation and long-term reliability.
• Direct Fit Integration: Eliminates field-fabrication risks by providing a direct replacement 3H0337490006 component set specifically for compatible Modine units.
• Optimized Manifold Pressure: Includes a high-grade regulator spring to stabilize LP delivery, critical for maintaining the correct flame pattern across the burner assembly.

Is this kit compatible with all Modine unit heaters?
No, this is not a universal kit. Compatibility depends on the specific model series and the control code found on the unit's serial plate. Always check the service manual for the exact part number required for your BTU rating.

Can I use this kit for high-altitude installations?
Standard conversion kits are typically rated for 0–2,000 feet. For installations at higher elevations, separate high-altitude orifice kits must be used in conjunction with this assembly to account for decreased oxygen levels.

Does this kit include the gas valve?
No, this kit contains the internal regulator components and orifices needed to modify your existing gas valve. If the valve itself is failing, it must be replaced with the appropriate LP or convertible model separately.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.