Lennox 31J91 LP Pilot Orifice While the part is engineered

While the part is engineered for a precise mechanical fit

A veteran tech will tell you to replace the gasket every time the pilot tube or pilot generator is serviced to prevent nuisance service calls related to air leaks or pilot drop-outs

or the motor failing to turn over despite receiving power

the Veris Hawkeye H721LC utilizes solid-state sensing technology to provide accurate amperage monitoring for fan and pump status or motor control

Maintaining factory specifications with genuine components prevents unnecessary mechanical rattling and ensures the structural integrity of the equipment remains intact during heavy thermal cycling

Lennox 31J91 LP Pilot Orifice While the part is engineeredThe Lennox 31J91 LP Pilot Orifice is a precision engineered liquid propane (LP) conversion component designed specifically for residential and commercial gas heating systems. As a critical mechanical replacement for the legacy 31J9101, this red coded orifice ensures consistent gas flow regulation to the pilot burner assembly, maintaining a stable flame for reliable ignition cycles. Field tested for durability, the Lennox 31J91 is manufactured from