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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
While the part is engineered for a precise mechanical fit
Switch Cover for 11
this restrictor plate ensures the air-fuel ratio remains consistent with manufacturer specifications
or the motor failing to turn over despite receiving power
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