High-Temperature Resistance: Maintains structural integrity under extreme heat to prevent boiler gasket leaks

Heavy-duty terminal construction to resist carbon tracking and contact fatigue

and Nordyne M7 and MG9 series furnaces

Always use the orifice size specified by the manufacturer's LP conversion kit

When performing routine teardowns or replacing a hot surface ignitor

York S1-9951-0961 Orifice High-Temperature Resistance: Maintains structural integrityEnsuring proper combustion in York furnace LP conversion projects requires precise fuel delivery, which is exactly why the S1 9951 0961 is engineered with a specific . 096" drill size. This #41 gas orifice is a critical recovery component for York, Luxaire, and Coleman units when transitioning from natural gas to liquid propane. Unlike generic alternatives, this OEM replacement offers the exact threading and flow rate needed to maintain the correct