Delphi SS11991 Engine Crankshaft Position Sensor

Delphi Crankshaft Position Sensor for BMW

Delphi SS11991 is an engine crankshaft position sensor built for direct-fit replacement on select BMW applications. It uses a black housing, oval female connector, blade terminals, and an included wiring harness to support a clean electrical connection.

Key Features

• Engine crankshaft position sensor for ignition and engine management systems
• Black sensor body with oval connector shape
• 1 female connector, 3 male blade terminals
• Wiring harness included for installation
• Package includes the engine crankshaft position sensor and instruction sheet
• OE heritage from Delphi, with aftermarket parts informed by original equipment experience

Detailed Description

Delphi SS11991 is a crankshaft position sensor for BMW vehicles that rely on accurate crankshaft signal input for engine timing and control. This part cross-references Standard Ignition PC971 for the same application. It is a direct replacement option for BMW 320i, BMW 320i xDrive, BMW X4, BMW X5, BMW X3, BMW 228i, BMW 228i xDrive, BMW 328i, BMW 328i GT xDrive, BMW 328i xDrive, BMW 428i, BMW 428i Gran Coupe, BMW 428i xDrive, BMW 428i xDrive Gran Coupe, BMW 528i, BMW 528i xDrive, BMW Z4, and BMW X1 applications listed in the fitment data. The Delphi SS11991 part number is also commonly searched as a replacement crankshaft position sensor for BMW 328i and BMW X5 models.

What It Helps Address

• Crankshaft signal loss or intermittent sensor output
• Engine stalling or hard-start conditions tied to crank signal faults
• Check engine light concerns related to crankshaft position sensor performance
• Rough running or misfire symptoms caused by inaccurate engine timing input
• Driveability issues on BMW 320i, 328i, X3, X5, and related models

Installation Notes and Tips

Verify connector shape, terminal count, and harness routing before installation. Use the included instruction sheet and confirm the sensor location matches the vehicle application. For best results, inspect the mating connector and wiring for corrosion, bent terminals, or heat damage before installing Delphi SS11991.

Quality Assurance

Delphi draws on more than a century of OE experience and supplier knowledge used by major automakers. That OE background is built into this aftermarket crankshaft position sensor to support consistent fit and electrical performance.