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NGK Audi 4000 1986-1980 Direct Fit Oxygen Sensor

Marsoni M251S
Sale price$44.34
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NGK Audi 4000 1986-1980 Direct Fit Oxygen SensorNTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic
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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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4.3 ★★★★★
Based on 1793 reviews
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Tracy Kroken
Belleville, US
★★★★★ 4
It works as it should.
Color: Gravel Black
It's what I was looking for. I cut the small foam stickers to keep it from moving around on counter into pieces & put the on the bottom works well. It did chance color? like white stained?
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
D
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d
West Palm Beach, US
★★★★★ 5
Fits and works!
Color: Gravel White
Like it. Fits on edge my sink...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
S
Verified Purchase
stephen schwindt
Fort Morgan, US
★★★★★ 5
Perfection!
Color: Gravel Black
It works well. Is solidly constructed. Reasonably priced. Beautiful to behold.
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Reviewed in the United States on August 3, 2025
K
Verified Purchase
Kate
Charlottesville, US
★★★★★ 1
Soap stains wont wash off
Color: Gravel Black
Like the looks of it but gets easily stained with the soap and wont come off.
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Reviewed in the United States on December 4, 2025
R
Verified Purchase
Ronald D Smith Jr
Phoenix, US
★★★★★ 5
Perfect
Size: 16 Inch
Exactly what I ordered, took just a few minutes to assemble and mount the legs. Love that the bottoms can be manipulated to give a balanced stance.
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Reviewed in the United States on February 23, 2026

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