3B74133K Fuse , Time Delay
3B74133K Fuse , Time Delay

LG Microwave oven main inline time-delay fuse 3B74133K

XPart Number XP10013031
$3.99
$17.43
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Buying Options: Certified Pre-Owned — Item #0155

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MICROWAVE IS COMPLETELY DEAD OR WILL NOT POWER ON AFTER

LG Microwave oven main inline time-delay fuse 3B74133K, Fixes Microwave is completely dead or will not power on after an electrical fault or surge

Genuine LG main inline time-delay fuse used in some LG microwave ovens and microwave-equipped ranges.

Part 3B74133KLG

Genuine LG main inline time-delay fuse used in some LG microwave ovens and microwave-equipped ranges.

Is This the Right Part?

Part Number3B74133K
ManufacturerLG
Appliance TypeMicrowave
Part TypeMicrowave oven main inline time-delay fuse

Common Symptoms

  • No display or operating power after an overcurrent event.
  • Fuse opens repeatedly when an underlying door-switch, wiring, or high-voltage fault remains unresolved.

Check Before Replacing

  • If the microwave has no display or response, verify the appliance is receiving power before suspecting the fuse.
  • Do not assume a replacement fuse is the complete repair if the new fuse opens again; the underlying fault should be investigated by a qualified technician.

Pro Tip

A blown microwave fuse can indicate an additional fault; repeated fuse failure should not be treated as a fuse-only problem.

Part Details

Part Number3B74133K
Part TypeMicrowave oven main inline time-delay fuse
ManufacturerLG
Appliance TypeMicrowave
Primary FunctionInterrupts electrical current during an overcurrent or power-surge condition to protect the microwave.

Key Features

  • Main inline time-delay fuse
  • Genuine LG part
  • Used in selected LG microwave ovens and microwave-equipped ranges
  • Documented as a 20A, 250V ceramic fuse in an LG parts-list document

Installation Notes

  • Disconnect power before service.
  • Microwave high-voltage capacitors can retain a lethal charge even when the appliance is unplugged; installation should be performed by a qualified service technician.

Verified Compatible Models

85012, 85022, 85023, 85029, 85063, 85073, 85100, 85140, 85290, 85293, 85298, 85299, 85410, 85413, 85419, 85429, 85513, 85523, GMS-1424TW, GMV1608BB, GMV1608WW, LSE3092ST/00, LRE6321ST, LRE6323SW, LRE6325SW, LRE6385ST, LSES302ST, MS-115YE, MS-133YD, MV-1310M

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.

Verified Compatible Models

85012, 85022, 85023, 85029, 85063, 85073, 85100, 85140, 85290, 85293, 85298, 85299, 85410, 85413, 85419, 85429, 85513, 85523, GMS-1424TW, GMV1608BB, GMV1608WW, LRE6321ST, LRE6323SW, LRE6325SW, LRE6385ST, LSE3092ST/00, LSES302ST, MS-115YE, MS-133YD, MV-1310M

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.

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