Walker 274-1003 Exhaust Gas Differential Pressure Sensor

Walker Exhaust Gas Differential Pressure Sensor 274-1003

Walker Products 274-1003 is an exhaust gas differential pressure sensor built for accurate engine management feedback in diesel exhaust systems. It is a direct-fit replacement for select Audi, Porsche, and Volkswagen applications, including Audi Q7, Volkswagen Touareg, and Porsche Cayenne fitments.

Walker Products has supplied automotive fuel system and engine sensor components since 1946, with manufacturing and engineering processes focused on meeting or exceeding OEM standards. The Walker Products line includes engine management sensors and related components for import and domestic repair needs.

Key Features

• Exhaust gas differential pressure sensor for monitored exhaust system pressure readings
• Walker Products part number 274-1003
• Fits select 2009-2015 Volkswagen Touareg applications
• Fits select 2009-2012 Audi Q7 applications
• Fits select 2013-2015 Porsche Cayenne applications
• Also listed for 2014-2015 Audi A6 Quattro, A7 Quattro, A8 Quattro, and Q5
• Built by an ISO 9001/IATF16949 certified manufacturer

Detailed Description

Walker Products 274-1003 is an exhaust gas differential pressure sensor used to measure pressure differences in the exhaust stream so the engine control system can monitor exhaust-related operating conditions. This part number is cataloged for multiple European vehicle platforms, including Audi Q7, Volkswagen Touareg, and Porsche Cayenne, along with select Audi A6 Quattro, A7 Quattro, A8 Quattro, and Q5 applications. If you are searching for an exhaust gas differential pressure sensor for 2009-2015 Volkswagen Touareg, 2009-2012 Audi Q7, or 2013-2015 Porsche Cayenne, this Walker Products sensor is listed for those vehicles.

This part cross-references Standard Ignition 7601 for the same application.

What It Is Used For

• Restoring exhaust pressure signal accuracy when the original sensor is no longer reading correctly
• Addressing exhaust system fault codes related to pressure sensor performance
• Supporting proper engine management feedback in diesel exhaust monitoring systems
• Replacing a worn or contaminated sensor on select Audi, Porsche, and Volkswagen models

Installation Notes and Tips

Verify the vehicle year, make, model, and engine configuration against the catalog listing before installation. Compare the connector, mounting points, and sensor routing to the original part to confirm a proper match. Clear any stored diagnostic trouble codes after installation and recheck system operation.

Quality Assurance

Walker Products manufactures engine sensors and fuel system components to meet or exceed OEM standards and specifications. The company is ISO 9001/IATF16949 certified and supports its products with manufacturing, product management, engineering, and technical documentation resources.