Description
The York S1-9951-0891 is an OEM replacement #43 gas orifice designed for use in York furnaces and gas-fired heating equipment. Gas orifices are precision-machined components that meter the flow of fuel gas into the burner assembly, playing a critical role in achieving proper air-to-fuel ratios, stable ignition, and efficient combustion performance.
Key Features
- OEM York replacement part — ensures proper fit and performance in compatible York systems
- #43 drill size orifice for accurate gas metering and consistent burner operation
- Precision-machined for reliable, repeatable fuel flow control
- Supports stable ignition and efficient combustion in gas-fired heating applications
- Direct factory replacement minimizes downtime during service and maintenance
Application
This gas orifice is intended for use in York gas furnaces and compatible heating equipment requiring a #43 orifice size. Always verify compatibility with your specific York model before installation. Proper orifice sizing is essential for safe and efficient operation — consult equipment documentation or a qualified technician if unsure of the correct orifice size for your application.
Why Choose OEM Parts?
Using genuine York OEM replacement parts like the S1-9951-0891 ensures your equipment operates within factory specifications, maintaining warranty compliance, system efficiency, and long-term reliability. Aftermarket substitutes may not meet the precise dimensional tolerances required for safe gas metering.
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