HomeIgnition > SensorsDelphi SS12139 Engine Crankshaft Position Sensor
Part #: SS12139

Delphi SS12139 Engine Crankshaft Position Sensor

⚙️ 49 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, Silverado 2500 HD Classic, Silverado 3500 Classic, Sierra 2500 HD Classic, Sierra 3500 Classic, Avalanche 2500, Silverado 2500 HD, Silverado 3500, Suburban 2500, Sierra 2500 HD, Sierra 3500, Yukon XL 2500, Express 3500, and Savana 3500
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Reliable Engine Crankshaft Position Sensor for Chevrolet and GMC

The Delphi SS12139 engine crankshaft position sensor is designed to provide accurate and consistent crankshaft position data for select Chevrolet and GMC vehicles. This black sensor features a durable oval-shaped female connector with three male pin terminals, ensuring secure electrical connections for optimal engine performance.

Key Features of Delphi SS12139 Crankshaft Position Sensor

  • Color: Black for easy identification and compatibility
  • Terminal Type: Pin terminals for reliable electrical contact
  • Connector Quantity: Single connector design
  • Connector Shape: Oval connector for precise fitment
  • Terminal Quantity: 3 terminals to support accurate signal transmission
  • Connector Gender: Female connector housing
  • Terminal Gender: Male terminals inside the connector
  • Package Contents: Includes engine crankshaft position sensor and instruction sheet
  • Wiring Harness: Not included, compatible with existing vehicle harness

Detailed Description and Compatibility

The Delphi SS12139 crankshaft position sensor is engineered to meet the specifications of various Chevrolet and GMC heavy-duty models, including Avalanche 2500, Express 3500, Savana 3500, Sierra 2500 HD and Classic, Sierra 3500 and Classic, Silverado 2500 HD and Classic, Silverado 3500 and Classic, Suburban 2500, and Yukon XL 2500. Its oval-shaped female connector with three male pin terminals ensures a secure and precise connection to the vehicle’s wiring harness, facilitating accurate engine timing and performance monitoring.

Common Applications and Problem Resolution

  • Helps resolve engine misfires caused by faulty crankshaft position signals
  • Addresses issues with engine stalling or rough idling
  • Improves starting problems related to sensor failure
  • Supports proper fuel injection timing and ignition control
  • Prevents check engine light triggers related to crankshaft sensor faults

Installation Notes and Tips

Installation of the Delphi SS12139 sensor requires no wiring harness replacement as it connects directly to the existing vehicle harness. Ensure the oval female connector aligns correctly with the vehicle’s male terminals. Follow the included instruction sheet for torque specifications and sensor positioning. It is recommended to disconnect the battery before installation to avoid electrical shorts.

Quality Assurance and Warranty Information

Delphi manufactures the SS12139 crankshaft position sensor to meet OEM standards for durability and performance. Each sensor undergoes rigorous testing to ensure reliable operation under various driving conditions. This part comes with a limited warranty covering defects in materials and workmanship, providing confidence in its long-term functionality.

BrandDelphi
Part NumberSS12139
ColorBlack
Connector GenderFemale
Connector Quantity1
Connector ShapeOval
Package ContentsEngine Crankshaft Position Sensor, Instruction Sheet
Terminal GenderMale
Terminal Quantity3
Terminal TypePin
Wiring Harness IncludedNo

This part fits 49 vehicles. Search below:

YearMakeModelPositionNotes
2007ChevroletSilverado 2500 HD ClassicN/A
2007ChevroletSilverado 3500 ClassicN/A
2007GMCSierra 2500 HD ClassicN/A
2007GMCSierra 3500 ClassicN/A
2006ChevroletAvalanche 2500N/A
2006ChevroletSilverado 2500 HDN/A
2006ChevroletSilverado 3500N/A
2006ChevroletSuburban 2500N/A
2006GMCSierra 2500 HDN/A
2006GMCSierra 3500N/A
2006GMCYukon XL 2500N/A
2005ChevroletAvalanche 2500N/A
2005ChevroletSilverado 2500 HDN/A
2005ChevroletSilverado 3500N/A
2005ChevroletSuburban 2500N/A
2005GMCSierra 2500 HDN/A
2005GMCSierra 3500N/A
2005GMCYukon XL 2500N/A
2004ChevroletAvalanche 2500N/A
2004ChevroletSilverado 2500 HDN/A
2004ChevroletSilverado 3500N/A
2004ChevroletSuburban 2500N/A
2004GMCSierra 2500 HDN/A
2004GMCSierra 3500N/A
2004GMCYukon XL 2500N/A
2003ChevroletAvalanche 2500N/A
2003ChevroletSilverado 2500 HDN/A
2003ChevroletSilverado 3500N/A
2003ChevroletSuburban 2500N/A
2003GMCSierra 2500 HDN/A
2003GMCSierra 3500N/A
2003GMCYukon XL 2500N/A
2002ChevroletAvalanche 2500N/A
2002ChevroletExpress 3500N/A
2002ChevroletSilverado 2500 HDN/A
2002ChevroletSilverado 3500N/A
2002ChevroletSuburban 2500N/A
2002GMCSavana 3500N/A
2002GMCSierra 2500 HDN/A
2002GMCSierra 3500N/A
2002GMCYukon XL 2500N/A
2001ChevroletExpress 3500N/A
2001ChevroletSilverado 2500 HDN/A
2001ChevroletSilverado 3500N/A
2001ChevroletSuburban 2500N/A
2001GMCSavana 3500N/A
2001GMCSierra 2500 HDN/A
2001GMCSierra 3500N/A
2001GMCYukon XL 2500N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

12575172235-1157CSS155PC269S10207SU1394

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.