Modine 3H0330740005 Burner Assembly

When you are dealing with ignition failure or inconsistent combustion in high-capacity Modine unit heaters, the Modine 3H0330740005 Burner Assembly is the critical OEM replacement needed to restore factory-spec performance. This stainless steel burner assembly is the direct engineering successor to the legacy 3H33074-5, designed to handle the thermal stresses of industrial heating environments. As a veteran technician, you know that precise fuel-to-air mixing is non-negotiable for maintaining combustion efficiency; this assembly ensures a stable flame pattern across the heat exchanger, preventing the hotspots and soot buildup that lead to premature component fatigue.

Engineered for seamless integration, the 3H0330740005 is compatible with Modine PD150, PDP150, BD150, and BDP150 heaters, as well as several PAE and BAE series models. Its robust NPT connection and heavy-duty construction are built for reliability in high-cycle applications. Replacing a fouled or warped burner with this OEM Modine replacement part restores the proper BTU output and ensures the flame sensor and igniter interface correctly with the burner ports for reliable startups every time.

• Direct OEM Compatibility: Engineered as the specific replacement for the 3H33074-5, ensuring bolt-on installation without field modifications.
• Extended Service Life: High-grade stainless steel construction resists oxidation and warping under extreme industrial operating temperatures.
• Optimized Combustion: Precision-ported design facilitates a stable, blue flame for maximum heat transfer and reduced fuel waste.
• Broad Application: Verified fit for multiple Modine power-vented and gravity-vented unit heaters, including the 150,000 BTU series.

Is the 3H33074-5 still available?
No, the 3H33074-5 has been officially superseded by the Modine 3H0330740005. This is the manufacturer-recommended direct replacement.

Will this assembly fix a "Weak Flame" LED diagnostic code?
If your control board indicates a weak flame (usually <1.0uA), a clogged or corroded burner assembly is often the culprit. Replacing the assembly ensures the flame properly envelopes the flame sensor for a strong signal.

Does this assembly include the orifice?
This is the main burner assembly. We recommend verifying your specific gas type (Natural Gas or Propane) and checking if your existing orifices require replacement or cleaning during the install.

This item is not eligible for free shipping.

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.