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MK4 Before-Catalyst Oxygen Sensor (1.8T)

Marsoni M251S
Sale price$119.99
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Get it in 3 business days with 1 day shipping. Friday, May 29
MK4 Before-Catalyst Oxygen Sensor (1.8T)The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best in class performance and maximum service life. > OE Equivalent. > Direct fit for easy installation. > OE Style connectors and wire lengths. > Base ceramic probe of Zirconium and Yttrium. > Patented Platinum Power Grid. > Fine
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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.
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4.5 ★★★★★
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Doug Fitzpatrick
Omaha, US
★★★★★ 5
Quality filter.
Size: (Pack of 1)
I have been using these filters for years on my Grand Caravan. Wait till they go on sale and stock up on them.
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Reviewed in the United States on May 17, 2026
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Verified Purchase
Gregg Smith
Port Orchard, US
★★★★★ 4
Good OEM replacement, but check the contents
Size: (Pack of 1)
This filter was perfect for my 2020 ram 1500, however I had to get a replacement because the gasket was not included in the box as delivered. I contacted the seller and they replaced it within two days. The replacement unit had both the filter, and the gasket in the box it should've been.
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Reviewed in the United States on June 27, 2025
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Verified Purchase
pullitmans
Charlottesville, US
★★★★★ 5
Good price
Size: (Pack of 1)
Just as described, good price.
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Reviewed in the United States on May 22, 2026
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Verified Purchase
Potato
Birmingham, US
★★★★★ 5
Well made filter.
Size: (Pack of 1)
High quality manufacture.
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Reviewed in the United States on May 14, 2026
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Verified Purchase
Philly Fan
Alexandria, US
★★★★★ 5
democracy in action or am I allowed to vote
Format: Paperback
This is a superb document on the history of voting rights in America from its founding to 2000. Well worth reading about the struggles of Americans to get the vote. The discussion of suffrage for all Americans. How those that had the vote trying to prevent other people from getting the vote. We struggle with this today, given that President Drumpf is more than willing to disregard the majority of American voters. Our democracy beware and here is the history.
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Reviewed in the United States on December 28, 2020

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