Beckett Igniter 21439U Blower Wheel 320735-701 this standard electrode is designed

this standard electrode is designed to support single spark and sense applications where the high-voltage wire carries both the ignition spark and the return microamp signal for flame monitoring

Always check the motor nameplate for the specific rating before installation

this is the 5-pin wiring assembly only

If the module fails to signal the burner despite safe water levels and a call for heat

Complete Seal: Includes heavy-duty O-ring replacements to stop steam leaks and pressure loss

Beckett Igniter 21439U Blower Wheel 320735-701 this standard electrode is designedEnsure your oil burner operates at peak efficiency with this genuine Beckett 21439U Blower Wheel. Designed specifically for high static pressure applications, this 4 1 4" x 2" blower wheel is a critical component for maintaining the precise air to fuel ratio required for clean combustion. As a veteran grade oil burner replacement part, it is engineered for the Beckett AFII burner series (specifically the AFII 85), featuring a rugged steel construction