Beck/Arnley Engine Coolant Temperature Sensor P/N:158-1679

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$36.99
MPN: 158-1679
Item Package Code: EA
Part Has Core (Y/N): N
Item Package Quantity: 1
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Beck/Arnley Engine Coolant Temperature Sensor P/N:158-1679
Beck/Arnley Engine Coolant Temperature Sensor P/N:158-1679
$36.99

Keep accurate coolant temperature data flowing to your engine's ECU with the Beck/Arnley Engine Coolant Temperature Sensor 158-1679. This sensor measures engine coolant temperature and relays that signal to the ECU, which uses it to manage fuel delivery, ignition timing, and cooling-fan operation. It's an application-specific, direct-fit replacement for a wide range of Audi and Porsche models, including the 2017-2020 Audi A3 [L4-2.0L], 2017-2020 Audi A4 [L4-2.0L], 2016-2018 Audi A6 [L4-2.0L], 2019-2021 Audi Q8 [V6-3.0L], 2014-2018 Audi RS7 [V8-4.0L], 2017-2021 Porsche 911 [H6-3.0L], 2019-2021 Porsche Cayenne [V6-2.9L], and 2017-2021 Porsche Panamera [V6-2.9L] — see the Buyer's Guide tab for the full list of 45 applications.

  • OE form, fit and function: designed as a direct replacement for the listed applications.
  • Made to exacting tolerances: for precise messaging to the ECU.
  • Corrosion-resistant terminals and coatings: constructed to withstand an engine environment.

Wiring harness and thread sealer are not included. Quantity varies by engine and application — some use a single sensor while others use more — so order the quantity your specific engine requires; sold individually. Made in Italy. If a failed coolant temperature sensor is the cause of erratic temperature readings, hard cold starts, or a related check-engine light, this replaces it.

Interchange: 079919523 · 079919523B · 079919523J · WT5315 · 95860662300 · 95860662320 · 9A791952500 · TX305

This part cross-references / interchanges with the following part numbers:

079919523, 079919523B, 079919523J, WT5315, 95860662300, 95860662320, 9A791952500, TX305

Frequently Asked Questions

What does the Beck/Arnley 158-1679 sensor do?

It measures engine coolant temperature and sends that signal to the ECU, which uses it to help manage fuel delivery, ignition timing, and cooling-fan operation.

Does this fit my Audi or Porsche?

It's an application-specific fit for 45 Audi and Porsche models, such as the 2017-2020 Audi A4 [L4-2.0L] and 2017-2021 Porsche 911 [H6-3.0L]. Check the Buyer's Guide tab for your exact year and engine.

How many sensors do I need?

Quantity varies by engine and application — some use one, others use more. It's sold individually, so order the quantity your specific engine requires.

Is a wiring harness or thread sealer included?

No. The catalog lists both wiring harness and thread sealer as not included with this sensor.

What are signs this sensor may need replacing?

Erratic temperature-gauge readings, hard cold starts, poor fuel economy, or a related check-engine light can be signs. Diagnose the cause first; if this sensor is the culprit, this replaces it.