Best Microwave Magnetron Replacements: 5 Real Picks by Brand (2026)
Five real, brand-matched magnetron replacements for LG, Samsung, and Whirlpool-platform microwaves that stopped heating.
In this article
- Why microwaves stop heating (and how to confirm it's the magnetron)
- Top magnetron replacements by brand platform
- LG 6324W1A001L Genuine OEM Magnetron
- Magnetron 2M246-050GF Tube Compatible for LG 6324W1A001L
- Microwave Oven Magnetron 2M214-161GP / 2B71165R
- OM75P-21-ESGN Magnetron Compatible with Samsung Microwave (ME Series)
- ERP 10QBP0231 Microwave Magnetron
- How we chose these picks
- Buying tips before you order
- Final verdict
This guide is for anyone whose microwave suddenly stopped heating -- the turntable spins, the light comes on, the fan runs, but the food comes out stone cold. Nine times out of ten that points to a dead magnetron, the vacuum tube that actually generates the microwave energy. Before you replace the whole appliance, it's worth knowing that magnetrons are a genuinely repairable part on most countertop and over-the-range models, and DIYers with basic tool skills replace them all the time.
A safety note first: a microwave's high-voltage capacitor can hold a dangerous charge even after the unit is unplugged. If you've never discharged a microwave capacitor before, watch a full walkthrough for your exact model or have a technician do the swap -- this guide covers which part to buy, not the discharge procedure itself.
Why microwaves stop heating (and how to confirm it's the magnetron)
A cold-but-otherwise-normal microwave usually traces back to one of three parts: the magnetron itself, the high-voltage diode, or the high-voltage capacitor. The classic magnetron symptom is a microwave that runs completely silently with no heating -- no buzzing, no humming -- because the tube isn't drawing current at all. If you hear a loud hum or buzz but still get no heat, the diode or capacitor is more often the culprit, so it's worth a multimeter check (or a quick search for your model's fault-diagnosis chart) before you order a magnetron specifically.
Magnetrons are brand- and often model-specific -- they are not a universal part the way a lint trap or a waveguide cover is. Before buying any part below, pull your microwave's model number off the sticker (usually inside the door frame or on the back panel) and cross-reference it against the listing's compatibility notes.
Top magnetron replacements by brand platform
| 
LG 6324W1A001L Genuine OEM Magnetron | LG microwaves | $47.90 | 4.6★ | Check Price |
| 
Magnetron 2M246-050GF Tube Compatible for LG 6324W1A001L | LG microwaves (aftermarket) | $38.89 | 4.5★ | Check Price |
| 
Microwave Oven Magnetron 2M214-161GP / 2B71165R | LG-platform microwaves (broad cross-reference) | $39.99 | 4.5★ | Check Price |
| 
OM75P-21-ESGN Magnetron Compatible with Samsung Microwave (ME Series) | Samsung ME-series over-the-range microwaves | $41.99 | 4.6★ | Check Price |
| 
ERP 10QBP0231 Microwave Magnetron | Whirlpool / KitchenAid / Maytag / Amana platform microwaves | $36.97 | 4.6★ | Check Price |
LG 6324W1A001L Genuine OEM Magnetron
Best for: LG microwaves
Pros
- Genuine LG OEM part, not a generic clone
- By far the most-reviewed magnetron in this roundup
- Straightforward bolt-in fit for common LG part number 6324W1A001x variants
Cons
- Only fits LG and a handful of LG-built rebadged units
- No mounting hardware included on some batches
Skip this one if: your microwave isn't an LG (or an LG-built OEM model)
Magnetron 2M246-050GF Tube Compatible for LG 6324W1A001L
Best for: LG microwaves (aftermarket)
Pros
- Cross-references the same LG part number at a lower price than OEM
- Solid review volume for an aftermarket tube
- Ships with the antenna cap most LG units need
Cons
- Aftermarket tube — lifespan reports are more mixed than genuine LG
- Still LG-specific, not universal
Skip this one if: you want a guaranteed-genuine part and don't mind paying more for it
Microwave Oven Magnetron 2M214-161GP / 2B71165R
Best for: LG-platform microwaves (broad cross-reference)
Pros
- Cross-references a wide range of LG-built OEM part numbers
- Mid-pack price with a healthy review count
- Commonly cited as a fit for several Kenmore/LG-badged models too
Cons
- Model-number cross-referencing takes a little homework before you order
- No manufacturer warranty beyond the seller's return window
Skip this one if: you can't confirm your exact microwave model number before ordering
OM75P-21-ESGN Magnetron Compatible with Samsung Microwave (ME Series)
Best for: Samsung ME-series over-the-range microwaves
Pros
- Purpose-built for Samsung's common ME-series over-the-range units
- Strong 4.6 rating with triple-digit reviews
- Direct plug fit reported by most buyers, no rewiring
Cons
- Only fits Samsung ME-series, not the full Samsung lineup
- Air-cooled OM75P tubes run hotter than some liquid-cooled OEM designs
Skip this one if: your Samsung model isn't in the ME series (check the sticker inside the door frame first)
ERP 10QBP0231 Microwave Magnetron
Best for: Whirlpool / KitchenAid / Maytag / Amana platform microwaves
Pros
- ERP is a well-known appliance-parts remanufacturer, not a no-name import
- Fits the Whirlpool-family platform used across several sister brands
- Lowest price of the picks with a rating this consistent
Cons
- Whirlpool-platform only — check your model's part number cross-reference first
- Packaging is bare-bones compared to genuine-OEM boxed parts
Skip this one if: your microwave is not a Whirlpool, KitchenAid, Maytag, or Amana model
How we chose these picks
We focused on four things: whether the part is a genuine OEM component or a well-reviewed aftermarket equivalent, how many verified buyers confirmed a direct plug-in fit for their exact model, current review volume (a magnetron with hundreds of buyer confirmations is a safer bet than one with a handful), and whether the listing gives you enough part-number cross-referencing to actually confirm fitment before you order. We skipped no-name listings with vague "universal fit" claims and no real fitment data, since a mismatched magnetron either won't seat correctly or won't produce the rated wattage.
Buying tips before you order
Match your microwave's exact model number, not just the brand -- LG, Samsung, GE, and Whirlpool alone cover dozens of magnetron part numbers across their lineups, and a part built for one sub-platform usually won't bolt into another. If your unit is out of warranty and the magnetron is more than about a third of the price of a comparable new microwave, run the math before committing -- sometimes replacement still wins, but on older or budget units a new microwave can be the better use of your money. Finally, always disconnect and properly discharge the unit before opening the case; the high-voltage capacitor is the genuinely dangerous part of this repair, not the magnetron itself.
Final verdict
If your dead microwave is an LG or an LG-built OEM model, the LG 6324W1A001L genuine magnetron is the safest bet -- it's the most-reviewed part on this list and removes any guesswork about fit. Budget-focused LG owners can save a few dollars with the 2M246-050GF aftermarket cross-reference instead. Samsung ME-series owners should go straight for the OM75P-21-ESGN, and anyone on the Whirlpool/KitchenAid/Maytag/Amana platform gets the best value from the ERP 10QBP0231. Whatever you pick, confirm your model number against the listing before you order -- that single step prevents almost every return in this category.
Frequently asked questions
How do I know if it's the magnetron and not something else?
The classic sign is a microwave that runs completely normally -- turntable spins, light and fan work, timer counts down -- but produces zero heat and makes no buzzing or humming sound at all. If you hear a loud hum or buzz with no heat, the high-voltage diode or capacitor is more often the cause, so a multimeter check is worth doing first.
Can I put any magnetron in any microwave?
No. Magnetrons are brand- and often model-specific parts, unlike a universal accessory such as a waveguide cover. Always match your microwave's exact model number against the listing's compatibility notes before ordering.
Is it safe to replace a magnetron myself?
The magnetron swap itself is a manageable DIY job for someone comfortable with basic appliance repair, but the microwave's high-voltage capacitor can hold a dangerous charge even after unplugging the unit. If you haven't discharged a microwave capacitor before, follow a full model-specific walkthrough or have a technician handle it.
Is it cheaper to replace the magnetron or buy a new microwave?
It depends on the microwave. A $35-$55 magnetron plus your own labor is usually a clear win on a mid-range or higher-end unit. On very low-cost basic microwaves, a new unit can sometimes be the more practical choice once you factor in your time.
Do these magnetrons come with a warranty?
Genuine OEM parts like the LG 6324W1A001L typically carry a manufacturer warranty; most aftermarket cross-reference parts rely on the seller's own return window instead, so check the specific listing before you buy.
