Modine 3H0337490002 Conversion Kit

The Modine 3H0337490002 Conversion Kit is a critical components package designed for field-converting natural gas to propane (LP) operation in specific Modine unit heaters. As a veteran-grade direct replacement for 3H33749-2, this kit ensures your fuel transition meets factory performance standards without compromising combustion stability. For any technician tasked with a Modine gas heater fuel conversion, this kit provides the precise LP gas orifices and gas valve spring conversion components required to maintain the correct manifold pressure—typically 10" W.C. for propane—relative to your heater's input rating. This OEM Modine replacement part is engineered for seamless integration with the existing burner manifold and gas control train. Utilizing genuine HVAC conversion kits like the 3H0337490002 is essential for ensuring proper LP fuel conversion and preventing issues like soot accumulation or delayed ignition that often stem from mismatched aftermarket components. Always verify your specific Modine unit heater model number and gas valve brand before installation to ensure total propane conversion kit compatibility.

• Direct Replacement: Specifically engineered to replace legacy part number 3H33749-2 for a precise fit.
• Complete Component Set: Includes necessary burner orifices and valve springs for a comprehensive NG to LP conversion.
• Optimized Performance: Maintains factory-spec combustion efficiency and thermal output after switching to liquid propane.
• Technical Precision: Designed to facilitate accurate manifold pressure adjustments for safer operation.

• Is this kit compatible with all Modine heaters? This liquid propane conversion kit is designed for specific series like the Modine PD, PA, or PDP units; always check your serial plate for the correct part number match.
• Do I need to replace the entire gas valve? No, this kit allows you to convert your existing natural gas valve using the included spring and orifice components.
• Why should I use an OEM conversion kit? OEM kits ensure the orifice sizing and spring rates are calibrated exactly for the heat exchanger’s airflow and design.

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.