Marathon K381 Motor 318172-701 This means the internal plug

This means the internal plug moves upward to the seat to shut off flow

for proper operation

Always verify your OEM part number to determine if you need the separate electrode or the complete assembly for your specific burner application

this Permanent Split Capacitor (PSC) motor pulls a low 1

Marathon K381 Motor 318172-701 This means the internal plugThe Marathon K381 is a high performance 1 2 HP three phase motor engineered for heavy duty HVACR applications, specifically within commercial fan and blower systems. This 56 frame blower motor operates at a synchronous 1725 RPM, delivering consistent torque for both belt drive fan motor and direct drive configurations. Designed with an open drip proof (ODP) enclosure, it ensures optimal air handler motor cooling while protecting internal components