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NTK Oxygen Sensor – Downstream for Saab 9-7x (2006)

NTK Oxygen Sensor – Downstream for Saab 9-7x (2006)

NTK
Disponibilité:
Rupture de stock
UGC 21023
Épuisé
$40.29 - $40.29
$40.29
$40.29 - $40.29
$40.29
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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The NTK Oxygen Sensor (Part 21023) is a downstream replacement designed for Saab 9-7x 4.2L6 vehicles (2006). It monitors exhaust oxygen content to help the engine computer adjust fuel delivery, resulting in improved fuel economy, reduced emissions, and smooth performance.

Key Features & Benefits

  • High Sensitivity: Detects minute changes in oxygen levels for precise control.
  • Improved Fuel Economy: Helps achieve optimal air-fuel mixture for better mileage.
  • Lower Emissions: Ensures the vehicle meets emissions standards.
  • Durable Construction: Built to withstand harsh exhaust conditions.
  • Direct Fit: Easy to install with no additional wiring required.

Vehicle Fitment

Make Model Years Engine
Saab 9-7x 2006 4.2L6

Technical Specifications

Part Number 21023
Type Downstream Oxygen Sensor
Position Downstream

Installation Notes

Factory connector matches existing harness; installation takes under 30 minutes.

About NTK

NTK, a division of NGK Spark Plugs, is a leading manufacturer of oxygen sensors known for OE-quality replacement parts.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 1 application
Saab
Make Model Engine Years
Saab 9-7x 4.2L6 2006–2006
Fits 1 vehicle applications Check vehicle fitment before ordering View fitment

About this Oxygen Sensor

The NTK 21023 oxygen sensor measures the oxygen in the exhaust so the engine computer can keep the fuel mixture correct. Sensors before the catalytic converter control the mixture; sensors after it monitor the converter's efficiency.

Frequently asked questions

What does an oxygen sensor do?

It reports how rich or lean the exhaust is, and the engine computer adjusts fuel delivery in response. A faulty sensor can make the engine run too rich or too lean.

What are the signs of a failing oxygen sensor?

A check-engine light with oxygen-sensor or fuel-trim codes, poorer fuel economy, rough idle, or a failed emissions test. Exhaust leaks near the sensor can cause similar codes, so check for those too.

How do I know which sensor I need?

Sensors are specific to their position: upstream (before the catalytic converter) or downstream (after it), and on V engines, bank 1 or bank 2. The fault code usually identifies the position; check the product details for the position this sensor fits.

Can I replace an oxygen sensor myself?

Usually, yes, using an oxygen-sensor socket. Many new sensors come with anti-seize already on the threads; if not, use a sensor-safe compound only on the threads, and keep it off the sensor tip.

How do I make sure this oxygen sensor fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

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