What parts fit the GE JVM1339BW02?

Thermal cut-off WB27X1127, Capacitor WB27X10170, Magnetron WB27X10735, Switch WB24X830.

GE JVM1339BW02 microwave parts: thermal cut-off

Thermal cut-off

Reads or limits temperature. A failed one can stop the heat or let it run too hot.

Shop the thermal cut-off on Amazon Other models that use WB27X1127

Capacitor

Replaces WB27X705

A motor that hums but won't start often needs a new capacitor.

Shop the capacitor on Amazon Other models that use WB27X10170

Magnetron

Replaces WB27X10017

A motor that hums but won't turn, or stops once it's warm, needs replacing.

Shop the magnetron on Amazon Other models that use WB27X10735

Switch

Replaces WB24X800

Door, lid and control switches stop a cycle when they fail.

Shop the switch on Amazon Other models that use WB24X830

1Thermal cut-offWB27X1127

2CapacitorWB27X10170

3MagnetronWB27X10735

4SwitchWB24X830

Part numbers come from the Sears PartsDirect parts list for the GE JVM1339BW02 (view the list), checked November 15, 2026. Amazon buttons open a search for the part number; we may earn a commission.

Where the model number is

Open the door: the label is on the frame. Over-the-range models: sometimes behind the vent grille.

Other GE microwaves

JV348L1SSJV367H1BBJV367H1CCJV367H1WWJVM1190BY01JVM1330WW05JVM140H01JVM1410WC002JVM1430BD03JVM1430WD03