Description
Lennox 31J91 LP Pilot Orifice Overview
The Lennox 31J91 is an OEM replacement LP (liquid propane) pilot orifice designed for use with compatible Lennox heating systems. Precision-engineered to maintain the correct fuel flow rate for a stable, consistent pilot flame, this orifice is a critical component in ensuring safe and efficient ignition of your LP gas appliance.
Key Features
- OEM Lennox replacement part — ensures proper fit and function
- Designed for liquid propane (LP) gas applications
- Precision-machined orifice for consistent pilot flame performance
- Helps maintain safe and reliable ignition in compatible Lennox heating equipment
- Direct drop-in replacement to minimize downtime during service calls
Application
The 31J91 LP Pilot Orifice is intended for use in Lennox furnaces and heating appliances that utilize a standing or intermittent pilot ignition system running on liquid propane fuel. Always verify compatibility with your specific Lennox model before installation.
Why Choose OEM Lennox Parts?
Using genuine Lennox replacement components like the 31J91 ensures your equipment operates within factory specifications, preserving system efficiency, safety, and warranty compliance. Avoid the risks associated with aftermarket substitutes by sourcing the correct OEM part for every repair.







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