Walker 235-1406 Engine Crankshaft Position Sensor

Walker 235-1406 Crankshaft Position Sensor

Walker Products 235-1406 is an engine crankshaft position sensor built for precise engine timing signal input on select BMW applications. It is a direct-fit ignition sensor solution for 1991-1995 BMW 525i, 1992-1995 BMW 325i and 325is, 1993 BMW 525iT, and 1995 BMW M3 applications.

Walker Products has supplied automotive fuel system and engine management components since 1946, with manufacturing and engineering support focused on OEM-level specifications. The Walker Products line includes engine sensors such as crankshaft and camshaft sensors for service work that requires accurate signal output and dependable fitment.

Key Features

• Engine crankshaft position sensor for ignition and engine management service
• Direct-fit application for select BMW 325i, 325is, 525i, 525iT, and M3 models
• Black housing with rectangular connector
• 1 connector, 3 terminals, male connector / female terminal design
• 1 mounting hole for installation on the original location
• No mounting bracket included

Detailed Description

Walker 235-1406 is engineered for vehicles that rely on a stable crankshaft signal for ignition timing and engine control. This sensor is listed for 1991-1995 BMW 525i, 1992-1995 BMW 325i and 325is, 1993 BMW 525iT, and 1995 BMW M3, making it a focused replacement choice for BMW crankshaft position sensor service. The part number 235-1406 is also referenced across multiple aftermarket listings for the same application.

This part cross-references Standard Ignition PC231 for the same application.

What It Helps Address

• Crankshaft signal loss or intermittent engine speed input
• Hard starting caused by incorrect timing reference
• Stalling related to sensor signal interruption
• Misfire or rough running tied to crankshaft position data issues
• Check engine light conditions associated with crank sensor faults

Installation Notes and Tips

Verify connector shape, terminal count, and mounting location before installation. This sensor uses a rectangular 1-connector layout with 3 terminals and a single mounting hole, so matching the original electrical connection and bracketless mounting style is important. Confirm the vehicle application against the listed BMW fitment before replacing the original sensor.

Quality Assurance

Walker Products manufactures engine management components to meet or exceed OEM standards and specifications. The company is ISO 9001 and IATF 16949 certified, with in-house product management, engineering, and technical support used to maintain application accuracy and part quality.