Delphi SS12131 Engine Crankshaft Position Sensor

Delphi SS12131 Crankshaft Position Sensor

The Delphi SS12131 engine crankshaft position sensor is built for precise engine speed and crank position signal input on select GM vehicles. It is a direct-fit ignition sensor for applications such as the Buick Lucerne, Cadillac DTS, Cadillac STS, Cadillac SRX, and Cadillac XLR.

Delphi draws on OE engineering experience and supplier knowledge to produce aftermarket parts that match original equipment expectations for fit and function. This Delphi SS12131 crankshaft position sensor includes the sensor and instruction sheet.

Key Features

• Engine crankshaft position sensor for ignition and engine management systems
• Black housing with oval female connector
• 3-terminal male pin design with 1 connector
• No wiring harness included
• Package contents: engine crankshaft position sensor and instruction sheet
• Cross-references Standard Ignition PC741 for the same application

Fitment Details

• Fits 2006-2011 Buick Lucerne, N/A
• Fits 2006-2011 Cadillac DTS, N/A
• Fits 2006-2010 Cadillac STS, N/A
• Fits 2007-2009 Cadillac SRX, N/A
• Fits 2006-2009 Cadillac XLR, N/A

What This Sensor Helps Address

• Intermittent no-start conditions caused by a weak crankshaft signal
• Engine stalling related to inaccurate crank position input
• Rough running or misfire concerns tied to timing signal loss
• Check engine light faults associated with crankshaft position sensor performance
• Hard starting after heat soak or extended driving

Installation Notes

Verify connector shape, terminal count, and vehicle application before installation. The Delphi SS12131 uses a female oval connector with 3 terminals and does not include a wiring harness. Follow the included instruction sheet and inspect the mounting area, connector pins, and related wiring for damage before completing the repair.

Quality Assurance

Delphi builds this sensor using OE heritage and knowledge developed through long-term supplier experience with major automakers. That background supports consistent fitment and signal performance for select Buick and Cadillac applications, including Buick Lucerne and Cadillac DTS models.