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Air / Fuel Ratio Sensor
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Air / Fuel Ratio Sensor - Upstream or Upstream Left or Upstream Right (NGK) for 2017-2025 Audi & Volkswagen NEW

Out of Stock
$ 106 .45

Product Notes

Position: Upstream or Upstream Left (Driver Side) or Upstream Right (Passenger Side)
⚠️ Most jobs typically require 2 of this item.
B1S1 OE MFR: NTK
Direct Fit 5-Wire A/F Sensor
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. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, NTK uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.
Brand: NGK
Condition: New
See All Other Air / Fuel Ratio Sensors
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
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Specifications & Info


Attribute Value
Connector Color Black
Connector Gender Female
Connector Shape Rectangular
Grade Type Standard Replacement
Heated Yes
Hex Size 7/8" (22mm)
Sensor Type Wide-band
Technology 5-wire A/f Sensor
Terminal Gender Male
Terminal Quantity 6
Terminal Type Blade
Thread Diameter 18.00
Wire Quantity 5
Wiring Harness Length 25.75, 657.00

Vehicle Fitment Guide

This part fits the following vehicles:

Audi 17 models (tapclick to expand)(tapclick to hide)
A6 Quattro 2019-2024 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Elite Sedan 2024 L4 2.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Elite Sedan 2021 - 2023 L4 2.0L Turbo AWD Automatic Dual Clutch
Elite Sedan 2019 - 2021 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Premium Sedan 2019 - 2024 L4 2.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Premium Sedan 2019 L4 2.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium Sedan 2019 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Premium Sedan 2019 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium Plus Sedan 2019 - 2024 L4 2.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Premium Plus Sedan 2019 L4 2.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium Plus Sedan 2019 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Premium Plus Sedan 2019 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Prestige Sedan 2019 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Prestige Sedan 2019 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Progressiv Sedan 2020 - 2024 L4 2.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Progressiv Sedan 2019 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Progressiv Sedan 2019 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
S Line Sedan 2024 L4 2.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
S Line Sedan 2021 - 2023 L4 2.0L Turbo AWD Automatic Dual Clutch
S Line Sedan 2019 - 2023 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Technik Sedan 2020 - 2022 L4 2.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Technik Sedan 2019 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Technik Sedan 2019 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
A6 allroad 2020-2024 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Premium Plus Wagon 2020 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Prestige Wagon 2020 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Progressiv Wagon 2020 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Technik Wagon 2020 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
A7 Sportback 2019-2024 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Elite Hatchback 2024 L4 2.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Elite Hatchback 2021 - 2023 L4 2.0L Turbo AWD Automatic Dual Clutch
Elite Hatchback 2019 - 2021 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Premium Hatchback 2019 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Premium Plus Hatchback 2021 - 2022 L4 2.0L PLUG-IN HYBRID EV-GAS (PHEV) Turbo AWD Automatic Dual Clutch
Premium Plus Hatchback 2019 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Prestige Hatchback 2021 - 2022 L4 2.0L PLUG-IN HYBRID EV-GAS (PHEV) Turbo AWD Automatic Dual Clutch
Prestige Hatchback 2019 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Progressiv Hatchback 2019 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
S Line Hatchback 2024 L4 2.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
S Line Hatchback 2021 - 2023 L4 2.0L Turbo AWD Automatic Dual Clutch
S Line Hatchback 2019 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
Technik Hatchback 2021 - 2022 L4 2.0L PLUG-IN HYBRID EV-GAS (PHEV) Turbo AWD Automatic Dual Clutch
Technik Hatchback 2019 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic Dual Clutch
A8 Quattro 2019-2024 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
L Sedan 2019 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
L Sedan 2019 - 2021 V8 4.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
L Plug-In Hybrid Sedan 2020 - 2021 V6 3.0L PLUG-IN HYBRID EV-GAS (PHEV) Turbo AWD Automatic
L Premium Sedan 2023 - 2024 V8 4.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium Sedan 2019 - 2021, 2023 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Q7 2020-2024 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Elite SUV 2021 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Komfort SUV 2023 - 2024 L4 2.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Komfort SUV 2020 - 2022 L4 2.0L Turbo AWD Automatic
Komfort SUV 2020 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium SUV 2023 - 2024 L4 2.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium SUV 2020 - 2022 L4 2.0L Turbo AWD Automatic
Premium SUV 2020 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium Plus SUV 2023 - 2024 L4 2.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium Plus SUV 2020 - 2022 L4 2.0L Turbo AWD Automatic
Premium Plus SUV 2020 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Prestige SUV 2022 L4 2.0L Turbo AWD Automatic
Prestige SUV 2020 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Progressiv SUV 2020 - 2022 L4 2.0L Turbo AWD Automatic
Progressiv SUV 2020 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
S Line SUV 2021 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Select SUV 2021 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Technik SUV 2020 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Q8 2019-2025 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
60e SUV 2025 V6 3.0L PLUG-IN HYBRID EV-GAS (PHEV) Turbo AWD Automatic
Elite SUV 2019 - 2025 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium SUV 2019 - 2025 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium Plus SUV 2019 - 2025 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Prestige SUV 2019 - 2025 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Progressiv SUV 2019 - 2025 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
S Line SUV 2019 - 2024 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Technik SUV 2019 - 2025 V6 3.0L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
RS3 2017-2024 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Sedan 2017 - 2020, 2022 - 2024 L5 2.5L Turbo AWD Automatic Dual Clutch
RS5 2018-2024 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Coupe 2022 V6 2.9L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Base Coupe 2018 - 2019, 2021 - 2024 V6 2.9L Turbo AWD Automatic
RS5 Sportback 2019-2024 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Hatchback 2022 V6 2.9L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Base Hatchback 2019, 2021 - 2024 V6 2.9L Turbo AWD Automatic
S4 2018-2024 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Sedan 2022 - 2024 V6 3.0L Turbo AWD Automatic
Base Sedan 2018, 2021 V6 3.0L Supercharged AWD Automatic
Premium Sedan 2019 - 2024 V6 3.0L Turbo AWD Automatic
Premium Plus Sedan 2018 - 2024 V6 3.0L Turbo AWD Automatic
Prestige Sedan 2018 - 2024 V6 3.0L Turbo AWD Automatic
Progressiv Sedan 2018 - 2022 V6 3.0L Turbo AWD Automatic
Technik Sedan 2018 - 2024 V6 3.0L Turbo AWD Automatic
S5 2018-2024 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Coupe 2019, 2021 - 2024 V6 3.0L Turbo AWD Automatic
Base Coupe 2018 V6 3.0L Supercharged AWD Automatic
Base Hatchback 2018 V6 3.0L Supercharged AWD Automatic
Premium Convertible 2019 - 2024 V6 3.0L Turbo AWD Automatic
Premium Coupe 2019 - 2024 V6 3.0L Turbo AWD Automatic
Premium Plus Convertible 2018 - 2024 V6 3.0L Turbo AWD Automatic
Premium Plus Coupe 2018 - 2024 V6 3.0L Turbo AWD Automatic
Prestige Convertible 2018 - 2024 V6 3.0L Turbo AWD Automatic
Prestige Coupe 2018 - 2024 V6 3.0L Turbo AWD Automatic
Progressiv Convertible 2018 - 2024 V6 3.0L Turbo AWD Automatic
Progressiv Coupe 2018 - 2024 V6 3.0L Turbo AWD Automatic
Technik Convertible 2018 - 2024 V6 3.0L Turbo AWD Automatic
Technik Coupe 2018 - 2024 V6 3.0L Turbo AWD Automatic
S5 Sportback 2018-2024 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Hatchback 2019, 2021 - 2024 V6 3.0L Turbo AWD Automatic
Premium Hatchback 2020 - 2024 V6 3.0L Turbo AWD Automatic
Premium Plus Hatchback 2018 - 2024 V6 3.0L Turbo AWD Automatic
Prestige Hatchback 2018 - 2024 V6 3.0L Turbo AWD Automatic
Progressiv Hatchback 2018 - 2024 V6 3.0L Turbo AWD Automatic
Technik Hatchback 2018 - 2024 V6 3.0L Turbo AWD Automatic
S6 2020-2024 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Sedan 2020 - 2024 V6 2.9L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium Sedan 2023 - 2024 V6 2.9L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium Plus Sedan 2020 - 2024 V6 2.9L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Prestige Sedan 2020 - 2024 V6 2.9L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
S7 Sportback 2020-2024 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Hatchback 2020 - 2024 V6 2.9L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium Hatchback 2023 - 2024 V6 2.9L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Premium Plus Hatchback 2020 - 2024 V6 2.9L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
Prestige Hatchback 2020 - 2024 V6 2.9L MILD HYBRID EV-GAS (MHEV) Turbo AWD Automatic
SQ5 2018-2024 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
3.0T SUV 2018 V6 3.0L Supercharged AWD Automatic
Base SUV 2019 - 2024 V6 3.0L Turbo AWD Automatic
Premium SUV 2019 - 2024 V6 3.0L Turbo AWD Automatic
Premium Plus SUV 2018 - 2024 V6 3.0L Turbo AWD Automatic
Prestige SUV 2018 - 2024 V6 3.0L Turbo AWD Automatic
Progressiv SUV 2018 - 2024 V6 3.0L Turbo AWD Automatic
Technik SUV 2018 - 2024 V6 3.0L Turbo AWD Automatic
SQ5 Sportback 2021-2024 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base SUV 2022 - 2024 V6 3.0L Turbo AWD Automatic
Premium SUV 2021 - 2024 V6 3.0L Turbo AWD Automatic
Premium Plus SUV 2021 - 2024 V6 3.0L Turbo AWD Automatic
Prestige SUV 2021 - 2024 V6 3.0L Turbo AWD Automatic
Progressiv SUV 2021 - 2024 V6 3.0L Turbo AWD Automatic
Technik SUV 2021 - 2024 V6 3.0L Turbo AWD Automatic
TT RS Quattro 2018-2022 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Coupe 2018 - 2022 L5 2.5L Turbo AWD Automatic Dual Clutch
Heritage Edition Coupe 2022 L5 2.5L Turbo AWD Automatic Dual Clutch
Volkswagen 3 models (tapclick to expand)(tapclick to hide)
Golf 2019-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Comfortline Hatchback 2019 - 2021 L4 1.4L Turbo FWD Automatic
Comfortline Hatchback 2019 - 2020 L4 1.4L Turbo FWD Manual & Automatic Dual Clutch
Execline Hatchback 2019 L4 1.4L Turbo FWD Automatic & Manual
GTI Hatchback 2020 - 2021 L4 2.0L Turbo AWD Automatic Dual Clutch
GTI Hatchback 2019 L4 2.0L Turbo FWD Automatic Dual Clutch
GTI oettinger Hatchback 2021 L4 2.0L Turbo AWD Automatic Dual Clutch
Highline Hatchback 2019 - 2021 L4 1.4L Turbo FWD Manual
Highline Hatchback 2019 - 2020 L4 1.4L Turbo FWD Automatic & Automatic Dual Clutch
S Hatchback 2019 L4 1.4L Turbo FWD Automatic & Manual
SE Hatchback 2019 L4 1.4L Turbo FWD Automatic & Manual
TSi Hatchback 2020 - 2021 L4 1.4L Turbo FWD Automatic & Manual
Golf SportWagen 2019 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Comfortline Wagon 2019 L4 1.4L Turbo AWD/FWD Automatic & Manual & Automatic Dual Clutch
Comfortline Wagon 2019 L4 1.8L Turbo AWD/FWD Automatic & Manual & Automatic Dual Clutch
Execline Wagon 2019 L4 1.8L Turbo AWD Automatic Dual Clutch
Highline Wagon 2019 L4 1.4L Turbo AWD/FWD Automatic & Manual & Automatic Dual Clutch
Highline Wagon 2019 L4 1.8L Turbo AWD/FWD Automatic & Manual & Automatic Dual Clutch
S Wagon 2019 L4 1.4L Turbo AWD/FWD Automatic & Manual & Automatic Dual Clutch
S Wagon 2019 L4 1.8L Turbo AWD/FWD Automatic & Manual & Automatic Dual Clutch
SE Wagon 2019 L4 1.4L Turbo FWD Automatic
Jetta 2019-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Comfortline Sedan 2019 - 2021 L4 1.4L Turbo FWD Automatic & Manual
Execline Sedan 2019 - 2021 L4 1.4L Turbo FWD Automatic & Manual
GLI Sedan 2019 - 2021 L4 2.0L Turbo FWD Manual & Automatic Dual Clutch
GLI 35th Anniversary Edition Sedan 2019 L4 2.0L Turbo FWD Manual & Automatic Dual Clutch
GLI Autobahn Sedan 2019 - 2021 L4 2.0L Turbo FWD Manual & Automatic Dual Clutch
GLI Edicion Aniversario Sedan 2019 L4 2.0L Turbo FWD Automatic Dual Clutch
GLI S Sedan 2019 - 2021 L4 2.0L Turbo FWD Manual & Automatic Dual Clutch
Highline Sedan 2019 - 2021 L4 1.4L Turbo FWD Automatic & Manual
R-Line Sedan 2020 - 2021 L4 1.4L Turbo FWD Manual
R-Line Sedan 2019 - 2021 L4 1.4L Turbo FWD Automatic
S Sedan 2019 - 2021 L4 1.4L Turbo FWD Automatic & Manual
SE Sedan 2019 - 2021 L4 1.4L Turbo FWD Automatic
SEL Sedan 2019 - 2021 L4 1.4L Turbo FWD Automatic
SEL Premium Sedan 2019 - 2021 L4 1.4L Turbo FWD Automatic
Startline Sedan 2020 L4 1.6L FWD Automatic
Trendline Sedan 2019 - 2021 L4 1.4L Turbo FWD Automatic & Manual
Wolfsburg Sedan 2020 L4 1.4L Turbo FWD Automatic
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
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. While conventional switching oxygen sensors only switch rich or lean, wideband oxygen (or Air-Fuel Ratio) sensors produce a linear output signal that allows the ECU determine exactly how rich or lean an engine is running and make continuous and precise adjustments of the air-fuel mixture to stay closest to stoichiometric, providing the best possible combustion and fewest emissions. A ceramics company at our core, NTK uses state-of-the art technology enabling complete control of the ceramics used in our wideband oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.

Interchange Parts

Brand Part Number
DENSO Auto Parts 234-5738
DENSO Auto Parts 234-5739

Fits Years: 2017 2018 2019 2020 2021 2022 2023 2024 2025

Fits Models: A6 allroad, A6 Quattro, A7 Sportback, A8 Quattro, Golf, Golf SportWagen, Jetta, Q7, Q8, RS3, RS5, RS5 Sportback, S4, S5, S5 Sportback, S6, S7 Sportback, SQ5, SQ5 Sportback, TT RS Quattro

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120
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Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.

NEW
Direct-Fit Replacement

Engineered To OEM Specs

Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.

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