2004 Audi A4 Knock Sensors

Your 2004 Audi A4 might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Knock Sensors you desperately need.

We currently carry 4 Knock Sensors to choose from for your 2004 Audi A4, and our inventory prices range from as little as $63.54 up to $113.99.

On top of low prices, Advance Auto Parts offers 2 different trusted brands of Knock Sensors for the 2004 Audi A4. We only sell parts from trusted brands like VDO so that you can find quality parts you can count on.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Knock Sensors stock in-person!

Knock Sensors for Your 2004 Audi A4

Carquest Premium – Knock Sensor (Part No.SBC4239)

Knock Sensor

from

$113.99
Carquest Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:
  • Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
  • Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
  • Designed to meet or exceed all OEM specifications in fit, form & function
  • Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
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VDO – Knock Sensor (Part No.F6020184183VDO)

Knock Sensor

from

$67.97
The VDO OE quality knock sensor is engineered to the exact specifications of the vehicle manufacturer to ensure the replacement sensor is the same in quality and function as the part installed as first equipment.

Product Features:
  • OEM quality direct fit application
  • Ground-isolated design with two-wire shielded harness helps protect the sensor signal from electro-magnetic interference (EMI)
  • Mounting hole is the same size as OE
  • Maintains OE specifications for frequency response
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Carquest Premium – Knock Sensor (Part No.SBC4186)

Knock Sensor

from

$65.99
Carquest Knock Sensors respond to a wide range of engine knock frequencies providing accurate engine condition to the ECM for optimal ignition timing. Highest quality piezoceramic element manufactured to tight tolerances for increased durability. All MotoRad Knock Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.

Product Features:
  • Precision piezoceramic element ensures accurate response to a wide range of engine vibrations
  • Manufactured using the highest quality OEM materials to ensure optimal performance and rugged durability
  • Designed to meet or exceed all OEM specifications in fit, form & function
  • Extensive product testing includes salt spray, high/low temperature impact, thermal cycling, vibration, drop among other tests, to ensure all sensors meet or exceed OEM specifications.
See More

VDO – Knock Sensor (Part No.F6020184182VDO)

Knock Sensor

from

$63.54
The VDO OE quality knock sensor is engineered to the exact specifications of the vehicle manufacturer to ensure the replacement sensor is the same in quality and function as the part installed as first equipment.

Product Features:
  • OEM quality direct fit application
  • Ground-isolated design with two-wire shielded harness helps protect the sensor signal from electro-magnetic interference (EMI)
  • Mounting hole is the same size as OE
  • Maintains OE specifications for frequency response
See More

FAQs for 2004 Audi A4 Knock Sensors

What are the most popular Knock Sensors for the 2004 Audi A4?

With 2 brands you can trust, our most popular Knock Sensors for the 2004 Audi A4 parts are:
Knock Sensor
from $63.54
This product is not rated
Knock Sensor
Knock Sensors
Knock Sensor
from $67.97
This product is not rated
Knock Sensor
Knock Sensors
Knock Sensor
from $65.99
This product is not rated
Knock Sensor
Knock Sensors