Walker 235-2128 Engine Crankshaft Position Sensor

Walker 235-2128 Crankshaft Position Sensor

Walker Products 235-2128 is an engine crankshaft position sensor for select Subaru applications. It provides the signal the engine management system uses to monitor crankshaft position and timing, supporting accurate ignition and fuel control.

Built by Walker Products, a long-standing manufacturer of fuel system and engine management components, this sensor reflects the company’s focus on OEM-level specifications and application accuracy for the automotive aftermarket.

Key Features

• Engine crankshaft position sensor for ignition and engine management systems
• Fits 2018-2021 Subaru WRX, Sensor Only
• Fits 2018 Subaru Forester, Sensor Only
• Fits 2014-2017 Subaru Forester, Walker Products
• Fits 2015-2017 Subaru WRX, Walker Products
• Cross-references Beck/Arnley 180-0769 and Standard Ignition PC1031 for the same application
• Part number 235-2128 for fitment-based lookup and replacement matching

Detailed Description

The Walker Products 235-2128 crankshaft position sensor is a direct replacement-style engine sensor for Subaru WRX and Subaru Forester applications listed above. It helps the engine control system track crankshaft position so the ECU can manage spark timing and fuel delivery with the correct reference signal. For buyers searching for a Subaru WRX crankshaft position sensor or a Subaru Forester engine speed sensor, this part number provides a fitment-specific option from Walker Products.

Walker Products has supplied automotive fuel system and engine sensor components since 1946 and supports its product development with manufacturing, engineering, and technical documentation resources. The brand line focuses on engine management parts, including cam and crank sensors, throttle position sensors, oxygen sensors, injectors, and related components.

What It Helps Address

• Crankshaft position signal loss or intermittent signal faults
• Engine stalling or hard-start conditions related to crank signal input
• Rough running caused by inaccurate crankshaft timing data
• Check engine light concerns tied to crankshaft position sensor codes
• Ignition timing and fuel control issues on supported Subaru models

Installation Notes and Tips

Verify the vehicle year, model, and sensor application before installation. Confirm connector style and mounting location against the original part and service information for the specific Subaru WRX or Subaru Forester listed in the fitment data. Clear diagnostic trouble codes after installation and perform a road test to confirm proper signal operation.

Quality Assurance

Walker Products states that its engine sensors are manufactured to meet or exceed OEM standards and specifications. The company is ISO 9001 and IATF 16949 certified, with product management and engineering support used to maintain application accuracy and technical documentation.