Williams 8902 LP Conversion Kit

The Williams 8902 LP Conversion Kit is a field-proven solution for transitioning natural gas to liquid propane (LP) on select heating units. Specifically engineered for the Monterey Furnace 35096 Series (including 3509622 and 3509622.6), this kit ensures your low-pressure gas system maintains optimal BTU output while adhering to manufacturer performance standards. As a critical component for HVAC fuel conversion, the 8902 is designed exclusively for use with the Williams gas valve 6003; verify the valve model on the data plate before attempting installation. This comprehensive package includes a replacement pressure regulator, heavy-duty burned orifices, and LP pilot orifices calibrated for 35,000 BTU Monterey SRO (Side Relief Opening) models. By standardizing the manifold pressure for propane requirements, this OEM conversion kit preserves terminal efficiency and flame stability. Ensure all connections are leak-tested and the manifold pressure is checked with a manometer during the commissioning process for reliable contractor-grade results in the field.

• Custom-calibrated LP orifices for 35,000 BTU Monterey SRO furnace configurations.
• Includes a pressure regulator spring or gas valve regulator assembly for precise fuel conversion.
• Compatible only with the Williams brand gas valve 6003 to ensure safe mechanical integration.
• Complete OEM kit includes high-visibility conversion labels and LP-rated gaskets.
• Maintains heating appliance efficiency when switching from natural gas to propane fuel sources.

Which furnaces are compatible with the Williams 8902 kit?
This kit is designed for 35,000 BTU Monterey SRO models including the 2509622, 3509622 series, and 3509922. It must be paired with the 6003 gas valve and is not compatible with Robertshaw components.

Is this kit intended for liquid propane to natural gas conversion?
No, the 8902 is specifically for NG to LP conversion. If you are converting from propane back to natural gas, a different Williams kit (typically the 8905) is required.

Does this kit include a manometer for testing?
No, the kit includes the mechanical conversion hardware. Technicians should use their own calibrated manometer to verify that the outbound manifold pressure meets the specifications listed in the installation manual.

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.