1 2
  • Photo - Primary
  • Photo - Primary
  • Photo - out of package
  • Photo - out of package
  • Photo - out of package
  • Photo - out of package
  • Photo - out of package
  • Photo - out of package

NGK Audi A4 1999-1997 Direct Fit Oxygen Sensor

NGK25550

$257.17
$257.17
Shipping calculated at checkout.
Request Price Match

This part is made to order only, contact us for rough ETA.

  • Fully secure checkout
  • Trusted by thousands
  • Rated and reviewed

NTK 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 converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.

  • ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning

This Part Fits:

Year Make Model Submodel
1998 Audi A4 Avant
1997-1999 Audi A4 Base
1998-1999 Audi A4 Quattro Avant
1997-2000 Audi A4 Quattro Base
1998-1999 Audi A6 Base
1998-1999 Audi A6 Quattro Avant
1998-1999 Audi A6 Quattro Base
1997-1999 Audi A8 Base
1997-1999 Audi A8 Quattro Base
1997 Volkswagen EuroVan Camper
1999-2000 Volkswagen EuroVan GLS
1999-2000 Volkswagen EuroVan MV
1999 Volkswagen Golf GTI
1995-1998 Volkswagen Golf GTI VR6
1995-1999 Volkswagen Jetta GLX
1996,1998-1999 Volkswagen Passat GLS
1995-2000 Volkswagen Passat GLX
MPN: 25550
⚠️ Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Learn more »
NGK Audi A4 1999-1997 Direct Fit Oxygen Sensor

$257.17

FAQ

When does my order ship?

Most orders ship in 1–3 days, but some items may take longer due to demand and manufacturing delays. For urgent orders, please contact us to confirm stock before purchasing.

Are returns accepted?

Not satisfied? Return any item within 30 days. See our FAQ page for details.

Buy now pay later options available?

Yes. Pay later in installments with Affirm or PayPal Pay Later.

Do we offer price matching?

We’re happy to price match any legitimate listing from an authorized dealer, as long as the item is in stock and the price is current. We cannot match outdated or incorrect discounts based on old MSRP, since those prices are often errors the competitor cannot honor.