Walker 1018-1003 Exhaust Gas Differential Pressure Sensor

Walker Exhaust Gas Differential Pressure Sensor

Walker 1018-1003 is an OE replacement exhaust gas differential pressure sensor built for diesel exhaust systems that rely on accurate DPF pressure readings. It uses a black housing with a 3-terminal blade-pin connection and factory-style female connector layout for straightforward service on supported diesel applications.

Key Features

• Measures pressure differential across the diesel particulate filter (DPF)
• Supports ECM regeneration timing and soot management
• Black, oblong sensor body for OE-style packaging
• 3-terminal blade-pin design with female connector interface
• Built for high heat, vibration, and soot exposure in the exhaust stream
• Manufactured to meet or exceed OE specifications for pressure range, signal accuracy, and electrical performance

Detailed Description

This Walker exhaust gas differential pressure sensor provides the ECM with the pressure data needed to monitor DPF loading and trigger regeneration at the proper time. Accurate readings help reduce soot buildup, maintain emissions-system performance, and limit the risk of drivability problems tied to restricted exhaust flow. Walker 1018-1003 is engineered as an OE replacement for diesel platforms that require a precise, factory-matched sensor signal. This part cross-references A4701530228 for the same application.

What It Helps Address

• DPF clogging warnings and restricted exhaust flow
• Incorrect regeneration timing caused by faulty pressure readings
• Engine derate events related to emissions-system faults
• Check engine lights tied to differential pressure sensor failure
• Drivability issues from soot buildup in the exhaust aftertreatment system

Installation Notes and Tips

Verify connector style, terminal count, and sensor orientation before installation. The oblong black housing and 3-terminal blade-pin layout should match the original sensor on the vehicle. For best results, inspect the pressure lines and related DPF plumbing for soot blockage, cracks, or leaks before replacing the sensor. Compatible diesel applications include Mercedes-Benz Sprinter models that use this OE-style pressure sensor configuration.

Quality Assurance

Walker manufactures this sensor to meet or exceed OE requirements for fit, signal accuracy, and electrical performance. It is built for the harsh exhaust environment found in light-duty and medium-duty diesel systems, including Mercedes-Benz Sprinter applications.