Dorman 904-742 Exhaust Gas Temperature (EGT) Sensor - Before Particulate Filter

Overview of Dorman 904-742 Exhaust Gas Temperature Sensor

The Dorman 904-742 Exhaust Gas Temperature (EGT) Sensor is designed specifically for Volkswagen Touareg models. This sensor plays a critical role in monitoring exhaust gas temperatures to ensure optimal engine performance and emission control.

• Wiring harness length: 260 mm for precise installation
• Brown female connector with an irregular shape for secure fitment
• Blade terminal type with 2 male terminals for reliable electrical connection
• Thread diameter of 14 mm and thread pitch of 1.5 mm for exact mounting
• Angled sensor design with a 7 mm tip width for accurate temperature readings
• Includes 1 EGT sensor and 1 bung repair kit for installation
• Specific fitment for Volkswagen Touareg models

Detailed Product Description

The Dorman 904-742 EGT sensor is engineered to provide precise exhaust gas temperature measurements, which are essential for the vehicle’s emission control system. Featuring a 260 mm wiring harness, this sensor allows for flexible routing during installation. The brown female connector with an irregular shape ensures a secure and correct connection to the vehicle’s wiring harness. The blade terminal type with two male terminals supports stable electrical contact, reducing the risk of signal loss or interference.

The sensor’s threaded mounting uses a 14 mm diameter with a 1.5 mm pitch, matching the original equipment specifications for Volkswagen Touareg models. Its angled design and 7 mm tip width enable accurate temperature detection within the exhaust stream. The included bung repair kit facilitates proper installation and sealing, maintaining system integrity.

Common Applications and Issues Addressed

• Monitors exhaust gas temperature to prevent engine overheating
• Supports emission control by providing accurate temperature data to the ECU
• Helps diagnose faulty or failing EGT sensors causing engine performance issues
• Prevents damage to turbochargers and exhaust components due to excessive heat
• Assists in maintaining compliance with emission regulations

Installation Notes and Tips

• Ensure the sensor is installed with the correct thread pitch and diameter to avoid leaks
• Use the included bung repair kit to properly seal the sensor mounting point
• Verify connector orientation and secure the brown female connector firmly to prevent disconnection
• Route the 260 mm wiring harness away from high heat sources and moving parts
• Consult the Volkswagen Touareg service manual for torque specifications and sensor location

Quality Assurance and Warranty

Dorman manufactures the 904-742 EGT sensor to meet or exceed OEM standards for fit, form, and function. Each sensor undergoes rigorous testing to ensure durability and reliable performance under demanding conditions. This part is backed by Dorman’s limited warranty, providing coverage against defects in materials and workmanship for a specified period. Refer to Dorman’s warranty documentation for complete details.