Modine IPI Spark Pilot Assembly (21039K / 3H37454-1) – Includes Orifices for LP & NG Gas

Modine IPI Spark Pilot Assembly (21039K / 3H37454-1) – Includes Orifices for LP & NG Gas

Restore consistent and safe ignition to your Modine heater with this IPI Spark Pilot Assembly. Designed to work with intermittent pilot ignition (IPI) systems, this assembly includes a spark electrode, pilot hood, and orifices for both natural gas (NG) and propane (LP) setups. Whether you're upgrading or replacing a worn component, this pilot assembly ensures reliable startup and long-term performance across a wide range of Modine heating units.

Note: For use with IPI ignition control modules only.

This assembly comes with both Natural Gas - Bigger #18 Orifice and

L.P. Gas - Smaller #10 Orifice (natural gas orifice come on the unit and the L.P. one is loose. 

Key Features:

• Compatible with NG & LP – Includes both natural gas and propane pilot orifices
• Reliable Spark Ignition – Provides consistent lighting for intermittent pilot systems
• Full Pilot Assembly Kit – Includes spark electrode, pilot hood, and dual gas orifices
• OEM Quality Replacement – Replaces multiple original Modine part numbers
• Easy to Install – Designed for a plug-and-play retrofit into existing IPI systems

Specifications:

• Part Number: 21039K / 3H37454-1
• Fuel Compatibility: Natural Gas (NG) and Propane (LP)
• Ignition Type: Intermittent Pilot Ignition (IPI)
• Includes: Spark pilot assembly with LP & NG orifices
• OEM Status: OEM-equivalent Modine replacement part
• Sold: Individually

Replaces the Following Part Numbers:

• 5H80690-1, 5H80690-2, 5H80690-3
• 3H34347-1, 3H34347-3
• 5H71938-1, 5H71938-2, 5H71938-3
• 5H74447-1, 5H74447-2, 5H74447-3
• 3H32608-1 through 3H32608-11
• 3H32961-1 through 3H32961-9
• 3H33062-1 through 3H33062-11
• 5H70871-1, 5H71838-3
• 5H74448-1, 5H74448-2, 5H74448-3

Always refer to your heater's service manual to confirm compatibility with your specific unit.

Get your Modine heater back to peak performance with the 3H37454-1 IPI Spark Pilot Assembly. Designed for versatility, this all-in-one kit includes everything you need for a smooth replacement on NG or LP systems. Order today for fast ignition and safe, reliable heat!