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Switch, Membrane (black)
Switch, Membrane (black)
Switch, Membrane (black)
Switch, Membrane (black)
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Switch, Membrane (black)

Marsoni M251S
Sale price$104.70
Pay 4 payments of $26.18 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Switch, Membrane (black)Part number: USA9841814 Regular price: 79. 37 Availability: Out of Stock Made by: Whirlpool Manufacturer's Part Number: 8184422 Description Switch, Membrane (black) USA9841814 Replacement Reference and Model Information Part Number 8184422 921945, AH392231, EA392231, PS392231, AP3135805 Manufacturer Model Number Description Whirlpool MT4140SKQ0 COUNTERTOP MICROWAVE Whirlpool MT4140SKB1 MICROWAVE OVEN 1. 4 CUBIC FOOT Whirlpool MT4140SKB0 COUNTERTOP
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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1852 reviews
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Product Reviews
A
Verified Purchase
Arun Durairaja
Los Angeles, US
★★★★★ 4
Good filter, Expensive
Size: (Pack of 1)
I like the product very much. It was upto my expectations but little expensive
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 24, 2023
S
Verified Purchase
Side Hug
Battle Creek, US
★★★★★ 5
Solid Price for Quality
Size: (Pack of 1)
Awesome filter, my engine told me it loves the fit and ease of installation. It also it very good value for money as they aren’t expensive and you are getting a high value for the money. My engine also told me it’s getting slightly better fuel efficiency as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2026
K
Verified Purchase
Kerry M.
Chelsea, US
★★★★★ 5
Made well
Size: (Pack of 1)
I just put it in but fits nice, good quality and I expect it to work very good. I watch many YouTube channels with experienced mechanics. Many of them use six products.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
G
Verified Purchase
Greg D.
Carnegie, US
★★★★★ 5
Top quality filter
Size: (Pack of 1)
Great filter but a bit expensive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
S
Verified Purchase
Scott
Carnegie, US
★★★★★ 4
It was ok.
Size: (Pack of 1)
The product installed fine and the price was good. However, it took too long to arrive. I don't know why it took almost three weeks to get to my house. I was about to cancel the order.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 17, 2019

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