Modine 5H0547510042 Orifice

The Modine 5H0547510042 is a precision-engineered Liquid Propane (LP) Main Burner Orifice designed to regulate gas flow for optimal combustion in industrial and commercial unit heaters. Primarily utilized in Modine PD200 and PD400 series heaters, as well as PDP200, PDP400, BD200, and BD400 units, this component is critical for maintaining the correct manifold pressure and heat output. For technicians performing field maintenance or LP gas conversion, the 5H0547510042 is the authorized direct replacement for the legacy part number 5H54751-42, ensuring full compatibility with existing burner assemblies and gas valves. Constructed from high-grade brass to withstand high-temperature environments, this #42 drill size orifice provides the metering accuracy necessary to prevent soot accumulation and ensure a clean flame pattern. Rely on this genuine Modine replacement part to restore system efficiency and meet the original equipment manufacturer's specifications for fuel delivery and thermal performance.

• Exact Compatibility: Serves as the direct replacement for Modine part 5H54751-42, ensuring a perfect fit and no-leak seal in the burner manifold.
• Optimized Combustion: Specifically calibrated for Liquid Propane (LP) applications to maintain precise gas-to-air ratios and peak BTU output.
• Wide Model Support: Verified for use in high-capacity Modine unit heaters, including the PD, PDP, BD, and BDP series (200,000 to 400,000 BTU models).
• Durable Construction: Heavy-duty brass design resists corrosion and thermal fatigue, essential for consistent performance in challenging HVACR environments.

Which Modine models use the 5H0547510042 orifice?
This LP orifice is primarily specified for PD200, PD400, PDP200, PDP400, BD200, and BD400 heaters. It is also found in specific PAE, PV, and BAE configurations. Always check the heater’s rating plate for the correct drill size requirements.

Is this the correct orifice for a Natural Gas to LP conversion?
Yes, this main burner orifice is a core component for LP conversion kits. However, a full conversion also requires the appropriate gas valve spring kit and pilot orifice to ensure safe operation.

Can I use this part if my old orifice is stamped 5H54751-42?
Yes. The 5H0547510042 is the current manufacturer replacement for the older 5H54751-42 part number and is functionally identical.

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.