Delphi SS12172 Engine Crankshaft Position Sensor

Delphi Crankshaft Position Sensor SS12172

Delphi SS12172 is an engine crankshaft position sensor built for accurate crankshaft signal reporting in a range of GM applications. It supports proper engine timing input for vehicles such as the Chevrolet Camaro, Malibu, Colorado, and GMC Canyon, with OE-standard testing and calibration.

Key Features

• Engine crankshaft position sensor for ignition and engine management systems
• Black housing with 1 oval female connector
• 3-pin male terminal design
• No wiring harness included
• No mounting bracket included
• Tested and calibrated to OE standards for accurate readings
• Package contents: engine crankshaft position sensor and instruction sheet

Detailed Description

Delphi SS12172 is part of Delphi’s sensor lineup for OE-style engine management service. The sensor is engineered to deliver consistent crankshaft position data to the engine control system, helping maintain correct ignition timing and engine operation. This part cross-references Standard Ignition PC977 for the same application. It is a direct-fit style replacement for many GM vehicles, including Chevrolet Camaro, Malibu, Colorado, Equinox, Traverse, and GMC Canyon, as well as Buick, Cadillac, and GMC models listed in the fitment data.

What It Helps Solve

• Crankshaft position signal loss
• Intermittent stalling or no-start conditions
• Engine misfire or rough running caused by incorrect timing input
• Check engine light concerns related to crankshaft sensor performance
• Hard starting after sensor signal degradation

Installation Notes and Tips

• Verify connector shape, terminal count, and mounting location before installation.
• Inspect the harness connector for corrosion, bent pins, or damaged locking tabs.
• Clear diagnostic trouble codes after installation and confirm proper sensor signal with a scan tool.
• Use the vehicle’s service information for exact removal and relearn procedures where required.

Quality Assurance

Delphi validates these sensors using OE development and product testing methods, with calibration to OE standards for accurate signal output and reduced comeback risk.