NTK 25764 Oxygen Sensor - Downstream
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NTK
 Direct Fit Oxygen Sensor

NTK 25764 Oxygen Sensor - Downstream

Brand NTK 25764
Position Downstream
Wiring Harness Length 20.7500
Sensor Type Heated
Universal Or Specific Fit Specific
Wire Quantity 4
Thread Diameter 18.000
Mounting Type Threaded
Product line Direct Fit Oxygen Sensor
Fits Audi, Porsche, and Volkswagen · 34 vehicles

Direct fit design. Specific-fit oxygen sensor for listed applications with OE-equivalent geometry.

Heated sensor. 4-wire construction with threaded mounting for precise exhaust monitoring.

NTK OE expertise. Built by a major original equipment oxygen sensor supplier with tested reliability.

Cross-references 04E906262J, 4G0906262 and 8K0906262F for the same application. See all 4.

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Direct Fit Oxygen Sensor Overview

The NTK 25764 is a direct fit heated oxygen sensor built for downstream applications with specific fitment. It uses a threaded mounting design and a 4-wire configuration for a precise replacement on select Audi, Porsche, and Volkswagen models.

As part of NTK's Direct Fit Oxygen Sensor line, this sensor is engineered for OE-equivalent fit, form, and function. The 20.75-inch harness length and 18 mm thread diameter support a clean installation on the listed applications.

Key Features

  • Heated oxygen sensor for downstream exhaust monitoring
  • Specific-fit design for direct replacement applications
  • Threaded mounting type with 18 mm thread diameter
  • 4-wire sensor configuration
  • 20.75-inch wiring harness length
  • NTK 25764 direct fit replacement

Detailed Description

NTK 25764 is an OE-equivalent downstream oxygen sensor for select Audi A4, A4 allroad, A4 Quattro, A5 Quattro, A5 Sportback, A6, A6 Quattro, Q5, and Q7 applications, plus Porsche Macan and Volkswagen Jetta coverage. It is built as a heated, threaded sensor with specific fitment to match the listed vehicle applications and restore accurate exhaust feedback in the emissions control system. The NTK 25764 part number is also referenced in cross-application listings for the same use case.

NTK's Direct Fit Oxygen Sensor line focuses on application-specific coverage and OE-style replacement geometry. This sensor is manufactured with ceramic technology and tested during production to meet or exceed OE specifications, making it a practical choice for Audi A4 and Audi Q7 downstream oxygen sensor replacement needs.

What It Helps Address

  • Faulty downstream oxygen sensor readings
  • Check engine light concerns related to oxygen sensor performance
  • Emissions control system monitoring issues
  • Incorrect air-fuel feedback from a worn sensor
  • Replacement needs after sensor aging or contamination

Installation Notes and Quality

Install this sensor only on the listed downstream applications and verify the correct year, model, and notes before ordering. The threaded design and specific-fit configuration are intended for direct replacement on the confirmed vehicles, including Audi A4, Audi A6, and Porsche Macan applications.

NTK is a major original equipment oxygen sensor supplier, and the 25764 is extensively tested during manufacturing to support quality and reliability that meets or exceeds OE specifications. This part cross-references Monroe Shocks & Struts (e.g., 04E906262J, 4G0906262) for the same application.

Related reading

This part fits 34 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2020AudiA42.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2020AudiA4 allroad2.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2020AudiA4 Quattro2.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2020AudiA5 Quattro2.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2020AudiA5 Sportback2.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2019AudiA42.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2019AudiA4 allroad2.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2019AudiA4 Quattro2.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2019AudiA5 Quattro2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019AudiA5 Sportback2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2019AudiQ72.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2018AudiA42.0LL4—DownstreamB1S2; To 6/4/2018; OE Equivalent Design; Direct Fit Oxygen Sensor
2018AudiA4 allroad2.0LL4—DownstreamB1S2; To 6/4/2018; OE Equivalent Design; Direct Fit Oxygen Sensor
2018AudiA4 Quattro2.0LL4—DownstreamB1S2; To 6/4/2018; OE Equivalent Design; Direct Fit Oxygen Sensor
2018AudiA5 Quattro2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018AudiA5 Sportback2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018AudiA62.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018AudiA6 Quattro2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2018AudiQ52.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2018AudiQ72.0LL4—DownstreamB1S2; To 5/28/18; OE Equivalent Design; Direct Fit Oxygen Sensor
2018PorscheMacan2.0LL4—DownstreamOE Equivalent Design; Direct Fit Oxygen Sensor
2017AudiA42.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017AudiA4 allroad2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017AudiA4 Quattro2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017AudiA62.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017AudiA6 Quattro2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017AudiQ72.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2017PorscheMacan2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016AudiA62.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016AudiA6 Quattro2.0LL4—DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2016VolkswagenJetta1.4LL4ELECTRIC/GASDownstreamAfter catalyst oxygen sensor, Bank 1 Sensor 3, designed equivalent to OE specifications; Direct Fit Oxygen Sensor
2015VolkswagenJetta1.4LL4—DownstreamAfter catalyst oxygen sensor, Bank 1 Sensor 3, designed equivalent to OE specifications; Direct Fit Oxygen Sensor
2014VolkswagenJetta1.4LL4—DownstreamAfter catalyst oxygen sensor, Bank 1 Sensor 3, designed equivalent to OE specifications; Direct Fit Oxygen Sensor
2013VolkswagenJetta1.4LL4—DownstreamAfter catalyst oxygen sensor, Bank 1 Sensor 3, designed equivalent to OE specifications; Direct Fit Oxygen Sensor
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
04E906262J4G09062628K0906262F8K0906262G