Hella 014494391 Exhaust Gas Temperature (EGT) Sensor - Rear

Hella Exhaust Gas Temperature Sensor for HD Diesel Applications

This HELLA exhaust gas temperature (EGT) sensor is a bolted, 2-pole replacement sensor with a 530 mm cable length. It is built for rear exhaust monitoring on select Chevrolet Silverado HD and GMC Sierra HD diesel applications, including 2500 HD and 3500 HD models.

Key Features

• Part number: 014494391
• Exhaust Gas Temperature (EGT) sensor for emission control systems
• Bolted mounting type for secure rear installation
• 2-pole connector design
• 530 mm cable length
• Compatible with select Chevrolet Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, and Sierra 3500 HD applications

Product Details

HELLA 014494391 is an exhaust gas temperature sensor used to monitor exhaust heat levels in diesel emission control systems. Accurate EGT feedback supports proper engine management and aftertreatment operation on heavy-duty trucks such as the Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD. The HELLA brand line is associated with OE-style electrical and sensor components, and this sensor follows the specified bolted, 2-pin configuration for the listed rear positions.

This part cross-references Delphi TS30320 and Standard Ignition ETS75 for the same application.

What This Sensor Helps Address

• Fault codes related to exhaust gas temperature sensor performance
• Incorrect exhaust temperature readings in the emission control system
• Rear sensor failures on diesel exhaust monitoring circuits
• Driveability issues tied to inaccurate aftertreatment temperature data
• Check engine lights associated with EGT sensor circuit faults

Installation Notes and Tips

• Fits 2015-2016 Chevrolet Silverado 2500 HD, rear.
• Fits 2015-2016 Chevrolet Silverado 3500 HD, rear.
• Fits 2015-2016 GMC Sierra 2500 HD, rear.
• Fits 2015-2016 GMC Sierra 3500 HD, rear.
• Fits 2014 Chevrolet Silverado 2500 HD, rear.
• Fits 2014 Chevrolet Silverado 3500 HD, rear.
• Fits 2014 GMC Sierra 2500 HD, rear.
• Fits 2014 GMC Sierra 3500 HD, rear.
• Fits 2007-2012 Chevrolet Silverado 2500 HD, rear.
• Fits 2007-2012 Chevrolet Silverado 3500 HD, rear.
• Fits 2007-2012 GMC Sierra 2500 HD, rear.
• Fits 2007-2012 GMC Sierra 3500 HD, rear.

Confirm the connector style, bolted mounting point, and rear sensor location before installation. Verify cable routing and sensor placement against the original unit to ensure proper fit on the exhaust system.

Quality Assurance

HELLA manufactures this sensor to the listed electrical and mounting specifications for the confirmed vehicle applications. Part number 014494391 is cataloged for direct replacement use on the specified Chevrolet Silverado HD and GMC Sierra HD diesel models.