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Gas Temperature Sensors

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DISPLAYING 1 to 10 (of 10 products)
95860668870/1
Product Information
Product Information
Exhaust gas temperature sensor.

hella

Fits:
Porsche 958 Cayenne Diesel 3.0ltr - 2015 to 2017 (engine codes CNRB / CVVA / CVVB / CVVC)
Porsche 95B Macan S Diesel 3.0ltr - 2014 to 2018 (engine code CTBA / CTBB / CTBC)
Porsche 970.1 Panamera Diesel 3.0ltr 2014 to 2016 (engine code CWJA)

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Diagram ref no 5




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95860668870
95860668870

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95860668822
Product Information
Product Information
Exhaust gas temperature sensor.

porsche

Fits:
Porsche 958 Cayenne 3.0L Diesel 2012-18
Porsche 95B Macan V6 TDI 3.0L 2014-18
Porsche 970 Panamera 3.0L Diesel 2012-16

This product supersedes Porsche's old part numbers:
- 95860668820
- 95860668821

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Diagram ref no 10

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95860668822
95860668822
95860668821
95860668820

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Special Order item
95860668831
Product Information
Product Information
Gas temperature sensor.

porsche

Fits:
Porsche 958 Cayenne Diesel 3.0L 2011-15 (Engine Type: CRCA)
Porsche 970 Panamera Diesel 3.0L 2012-16 (Engine Type: CRCC / CRCB)
Porsche 95B Macan Diesel 3.0L - 2014-18 (Engine Type: CDUD)

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Diagram ref no 5

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95860668831
95860668830
95860668831

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95860668831/1
Product Information
Product Information
Gas temperature sensor.
Ensure precise exhaust temperature monitoring in your Porsche with this OE Match gas temperature sensor (95860668831). Designed as a direct replacement for the factory unit, this sensor accurately measures exhaust gas temperature (EGT) and transmits data to the engine control unit (ECU) to maintain optimal performance, emissions control, and turbocharger protection.

Fits:
Porsche 958 Cayenne Diesel 3.0L 2011-15 (Engine Type: CRCA)
Porsche 970 Panamera Diesel 3.0L 2012-16 (Engine Type: CRCC / CRCB)
Porsche 95B Macan Diesel 3.0L - 2014-18 (Engine Type: CDUD)

Diagram ref no 5

Function
The gas temperature sensor (EGT sensor) measures the exhaust gas temperature before or after the turbocharger and transmits the signal to the ECU. The ECU uses this data to adjust fuel injection, ignition timing, and turbo boost, ensuring safe operating temperatures, optimal efficiency, and emissions compliance.

Why replacement matters:
Continuous exposure to high exhaust temperatures and vibration can cause the gas temperature sensor or its wiring to deteriorate over time. This leads to inaccurate readings, erratic ECU data, or the appearance of fault codes that affect performance and emissions control.

When to Replace:
When a check engine light
 During turbocharger, DPF, or exhaust system replacement or servicing
 As part of preventive maintenance on high-mileage vehicles to maintain precise exhaust temperature management.

Installing a new gas temperature sensor ensures accurate readings, optimal ECU operation, and reliable protection for the engine and turbocharger against overheating or inefficiency.

Related reference numbers
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95860668831
95860668830
95860668831

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4H0906088AA/1
Product Information
Product Information
Gas temperature sensor. Before particulate filter.

bosch

Fits:
Porsche 95B Macan 3.0L Diesel 2014-18
with Engine Code:
    CTBA- 3.0L V6 190kW- 05/2013 - 09/2018
    CTBB - 3.0L V6 155kW - 05/2013 - 09/2018
    CTBC - 3.0L V6 184kW - 05/2013 - 09/2018
    CDUD - 3.0L V6 180kW - 05/2013 - 09/2018



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

4H0906088AA
4H0906088AA
0986259188

The product you are viewing cross references to these numbers
4H0906088AA/2
Product Information
Product Information
Gas temperature sensor. Before particulate filter.

oematch

Fits:
Porsche 95B Macan 3.0L Diesel 2014-18
with Engine Code:
    CTBA- 3.0L V6 190kW- 05/2013 - 09/2018
    CTBB - 3.0L V6 155kW - 05/2013 - 09/2018
    CTBC - 3.0L V6 184kW - 05/2013 - 09/2018
    CDUD - 3.0L V6 180kW - 05/2013 - 09/2018



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

4H0906088AA
4H0906088AA
0986259188

The product you are viewing cross references to these numbers
Special Order item
4H0906088AA
Product Information
Product Information
Gas temperature sensor. Before particulate filter.

porsche

Fits:
Porsche 95B Macan 3.0L Diesel 2014-18
with Engine Code:
    CTBA- 3.0L V6 190kW- 05/2013 - 09/2018
    CTBB - 3.0L V6 155kW - 05/2013 - 09/2018
    CTBC - 3.0L V6 184kW - 05/2013 - 09/2018
    CDUD - 3.0L V6 180kW - 05/2013 - 09/2018



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

4H0906088AA
4H0906088AA

The product you are viewing cross references to these numbers
Special Order item
4H0906088AB
Product Information
Product Information
Gas temperature sensor. After particulate filter.

porsche

Fits:
Porsche 95B Macan 3.0L Diesel 2014-18
with Engine Code:
    CTBA- 3.0L V6 190kW- 05/2013 - 09/2018
    CTBB - 3.0L V6 155kW - 05/2013 - 09/2018
    CTBC - 3.0L V6 184kW - 05/2013 - 09/2018




Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

4H0906088AB
4H0906088AB

The product you are viewing cross references to these numbers
4H0906088AB/1
Product Information
Product Information
Gas temperature sensor. After particulate filter.

bosch

Fits:
Porsche 95B Macan 3.0L Diesel 2014-18
with Engine Code:
    CTBA- 3.0L V6 190kW- 05/2013 - 09/2018
    CTBB - 3.0L V6 155kW - 05/2013 - 09/2018
    CTBC - 3.0L V6 184kW - 05/2013 - 09/2018




Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

4H0906088AB
4H0906088AB
0986259189

The product you are viewing cross references to these numbers
4H0906088AB/2
Product Information
Product Information
Gas temperature sensor. After particulate filter.

oematch

Fits:
Porsche 95B Macan 3.0L Diesel 2014-18
with Engine Code:
    CTBA- 3.0L V6 190kW- 05/2013 - 09/2018
    CTBB - 3.0L V6 155kW - 05/2013 - 09/2018
    CTBC - 3.0L V6 184kW - 05/2013 - 09/2018




Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

4H0906088AB
4H0906088AB
0986259189

The product you are viewing cross references to these numbers
DISPLAYING 1 to 10 (of 10 products)
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About Gas Temperature Sensors

Exhaust Gas Temperature Sensors for Porsche | Precision Monitoring for Peak Performance

Exhaust Gas Temperature Sensors (EGT sensors) are vital components in your Porsche’s exhaust system, designed to monitor exhaust gas temperature and protect key engine and emission components. These sensors provide real-time feedback to the engine control unit (ECU), helping maintain optimal air-fuel ratios, boost pressure, and turbocharger performance.

At Design911, we supply a comprehensive range of EGT sensors for Porsche models, including 911, Cayman, Boxster, Panamera, and Macan. Built to manufacturer-level standards, each sensor ensures accurate data transmission, reliability under extreme heat, and seamless integration with your vehicle’s electronics.

Whether you’re replacing a faulty sensor or upgrading during an engine rebuild, our high-quality exhaust temperature sensors are essential for safeguarding performance and efficiency.

What Do Exhaust Gas Temperature Sensors Do?

The EGT sensor measures the heat of exhaust gases leaving the combustion chamber or turbocharger. This data helps the ECU adjust fueling, ignition timing, and boost pressure to prevent overheating and engine damage.

Core Functions:

  • Measures exhaust gas temperature in real time.
  • Prevents overheating of turbochargers and catalytic converters.
  • Optimises air-fuel ratio for efficiency and performance.
  • Reduces emissions by supporting accurate combustion control.
  • Protects vital engine components from thermal stress.

Without accurate temperature readings, engines can experience reduced performance, detonation, or premature component wear.

Why Do EGT Sensors Fail?

Operating under constant heat, vibration, and contamination, EGT sensors eventually degrade and lose accuracy.

Common Causes of Failure Include:

  • Thermal fatigue due to prolonged exposure to extreme exhaust heat.
  • Contamination from fuel additives, oil, or soot buildup.
  • Wiring corrosion or electrical connector damage.
  • Sensor tip oxidation from moisture or chemicals.
  • Internal circuit failure from repeated heat cycling.

When an EGT sensor fails, it can cause engine warning lights, poor fuel economy, reduced performance, and even turbocharger damage if left unchecked.

Why Replace or Upgrade Your Exhaust Gas Temperature Sensor?

Replacing a faulty or aged EGT sensor ensures your Porsche maintains the correct exhaust temperature monitoring for performance, reliability, and safety.

Key Benefits:

  • Restores accurate exhaust temperature readings.
  • Improves engine performance and fuel efficiency.
  • Prevents turbo and catalytic converter damage.
  • Ensures proper ECU communication and control.
  • Precision-fit design for Porsche 911, Cayman, Boxster, Macan, Panamera and more.
  • Crafted from heat-resistant, corrosion-proof materials.

A new EGT sensor is a small investment that prevents costly engine repairs and maintains performance consistency.

Highlights:

  • High-quality EGT sensors for all Porsche models.
  • Designed for accuracy under high exhaust temperatures.
  • Restores engine performance and emission control.
  • Built from corrosion- and heat-resistant materials.
  • Plug-and-play installation with reliable sensor calibration.
  • Ideal for both standard maintenance and performance builds.

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