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  • In Stock
  • Ships out in 1-2 business days
  • Sold individually
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  • 5 5 out of 5 stars
    (115 customer reviews)

  • Part #: USOS-4000
  • Mfr #: USOS-4000
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1999 Audi A6 Quattro Oxygen Sensor - Replacement - Passenger Side, Before Primary Catalytic Converter, 4-wire, Minor modifications required, 5.91 in.

  • Product Details
  • Related Products
  • Fitment Info
UNIVERSAL OXYGEN SENSOR, HEATED, 4-WIRE, SOLD INDIVIDUALLY

This REPLACEMENT oxygen sensor is crafted from high quality materials - stainless steel shell, hex nut, shield, Teflon-covered insulated wires, high-temperature rubber internal and external seals, and threaded tube coated with anti-seize compound.

Tested to ensure highest level of quality and reliability; it helps to reduce harmful emissions and extends catalyst life.

Notes: May not be compatible with flanges. May require minor modifications

View Installation Instruction

Replacement brand parts are the most affordable solution for your replacement needs! Replacement specializes in a wide range of OE comparable auto parts including body parts, lighting, electrical, brakes, suspension, intake, exhaust, cooling and heating parts. All Replacement brand items are backed by 1-year, unlimited-mileage warranty.

  • Location: Passenger Side, Before Primary Catalytic Converter
  • Type: 4-wire
  • Product Fit: Minor modifications required
  • Quantity Sold: Sold individually
  • Sensor Type: Heated
  • Sensor Design: Conical
  • Anticipated Ship Out Time: 1-2 business days
  • Includes: Butt type connectors, without plug
  • Mounting Style: Threaded-in
  • Notes: Designed to fit screw-in type bungs; May not be compatible with flanges
  • Warranty: 1-year, unlimited-mileage warranty
  • Wire Length: 5.91 in.
  • Fit note: Car
This product fits the following Audi A6 Quattro submodels
  • 1999-1999: All Submodels; All Engines;

Product reviews

took the check engine light off by eltonvideo, March 23, 2013

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finally got the check engine light off with this part no complaints lets hope it holds up for a while


Not compatible to HondaCRVs by Jetskier2009, January 28, 2013

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Tried and verified this brand in couple of ways still does not work...bought the OEM brand Denso first fit works flawlessly in minutes....I therefore concluded HondaCRVs are compatible with OEM brand electronics parts only.


by , January 27, 2013

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I bought item based on price and ease of install but overall performance was not satisfactory less that 1 year later I need to replace again due to check engine light notification.!


oxygen sensor for my Suzuki lx7 by dw, January 25, 2013

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it works fine and seems to be good quality. what more can I say.


Not compatible to Hondacrvs by Jetskier2009, January 21, 2013

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seemed not compatible to my 2005 hondacrv....decided to buy the more costly first fit Denso brand....works in minutes.


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