Main Inline Time Delay Fuse
Part # 3B74133Q·LG·RangeRefrigeratorMicrowave

Main Inline Time Delay Fuse

The 3B74133Q is a main inline time delay fuse for LG range and refrigerator and microwave. Basic tools needed. Compare prices from top sellers.

Replaces: 3B74133H, 3B74133J, 3B74133K, AP4440371, EAF42072605, K6231244BL, K62312510AP
Moderate Repair

Fits LG appliances

LG

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Price Comparison

5 stores · Updated May 18, 2026
Part AdvantageLowest
$4.34
4.8(728)In Stock
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Parts Dr
$11.24
4.6(3.6k)In Stock
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PartSelect
$11.77
4.5(13.6k)In Stock
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ApplianceParts Pro
$11.78
4.8(21.9k)In Stock
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RepairClinic
$13.69
4.4(3.1k)In Stock
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Elevate your kitchen experience with this essential inline time delay fuse, designed specifically for LG microwave ovens. As a crucial safety component, this part ensures reliable operation of your appliance, preventing potential electrical issues and enhancing performance. Crafted by LG Electronics, it guarantees compatibility and quality, making it an ideal replacement for worn or malfunctioning fuses. This fuse is not just functional but also easy to install, allowing you to restore your microwave efficiency without the need for professional help. Ensure your cooking adventures remain uninterrupted by keeping your oven in optimal condition with this dependable fuse. Invest in your kitchen longevity and functionality with this essential part tailored for LG appliances.

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Common Problems This Part Fixes

Not heating
Won't start

Repair difficulty: Moderate - basic tools and 1-2 panels to remove

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