Modine 3H0374540002 Pilot Assembly

The Modine 3H0374540002 Pilot Assembly is a critical OEM component designed specifically for unit heaters and duct furnaces. As a veteran-grade standing pilot assembly, this unit ensures reliable ignition and consistent flame sensing for commercial and industrial heating systems. It serves as the direct replacement for 3H37454-2, providing a seamless retrofit for older installations without requiring additional field modifications to the burner manifold. Built for versatility, the 3H0374540002 is dual-fuel compatible, functioning efficiently with both natural gas (NG) and liquid propane (LP) systems. This assembly typically includes the pilot burner, localized tubing, and the necessary mounting bracket to maintain proper alignment with the main burner carryover strip. When troubleshooting a Modine unit heater pilot burner, replacing the entire assembly is the preferred solution to resolve persistent issues with ignition failure or unstable pilot flames caused by orifice clogging or carbon buildup. This replacement pilot assembly is engineered to withstand the high-temperature environment of the combustion chamber, ensuring long-term operational stability for the heater.

• OEM Compatibility: Specifically engineered for Modine PA, PD, and PAE series unit heaters, ensuring precise fit and performance.
• Dual-Fuel Capability: Includes the necessary orifices to switch between natural gas and propane configurations.
• Simplified Retrofit: Functions as an exact 3H37454-2 replacement, reducing labor time during service calls.
• Stable Ignition: Maintains a concentrated pilot flame essential for consistent thermocouple heating and main burner transition.

• Will this fit my legacy Modine heater? This assembly is the standard standing pilot replacement for models formerly using the 3H37454-2 or 3H34030-10 part numbers.
• Does this include the thermocouple? No, this kit covers the pilot burner assembly and tubing; the thermocouple is typically sourced separately based on the required lead length.
• How do I switch this to LP? To use this with liquid propane, you must swap the pre-installed natural gas orifice with the provided LP orifice included in the kit.

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.