Delphi SS12503 Engine Crankshaft Position Sensor

Delphi SS12503 Crankshaft Position Sensor

The Delphi SS12503 engine crankshaft position sensor is built for accurate engine speed and crank position signal input on select Buick, Chevrolet, and Volt applications. It is a black, OE-calibrated sensor with a 3-terminal male blade connector and a single oval connector for a direct-fit style replacement.

Key Features

• Engine crankshaft position sensor for ignition and engine management systems
• OE-standard testing and calibration for accurate signal output
• Black housing with 1 oval connector and 3 male blade terminals
• Single mounting hole design; wiring harness and mounting bracket not included
• Package contents include the sensor and instruction sheet
• Cross-references Standard Ignition PC1134 for the same application

Detailed Description

Delphi SS12503 is an engine crankshaft position sensor engineered for vehicles that rely on precise crankshaft timing data for ignition and fuel control. Delphi validates and calibrates its sensors to OE standards, helping maintain consistent readings and reducing repeat repairs caused by signal errors. This part number is used on select 2017-2022 Chevrolet Spark, 2017-2018 Chevrolet Cruze, 2017-2019 Chevrolet Volt, 2021-2022 Chevrolet Trax, and 2021-2022 Buick Encore applications. If you are searching for a Delphi crankshaft position sensor for Chevrolet Spark or a replacement crankshaft sensor for Buick Encore, SS12503 is the direct-fit reference to check.

What It Helps Address

• Hard starting caused by an inaccurate crankshaft signal
• Intermittent stalling or engine cut-out related to crank sensor faults
• Check engine lights tied to crankshaft position sensor codes
• Rough running or misfire symptoms from incorrect engine timing input
• No-start conditions when the engine control module cannot read crank position

Installation Notes

Verify connector shape, terminal count, and mounting style before installation. This sensor uses a male blade terminal layout with one oval connector and one mounting hole, and it does not include a wiring harness or mounting bracket. Confirm vehicle-specific fitment for your Chevrolet Spark, Cruze, Volt, Trax, or Buick Encore before replacing the original sensor. Delphi SS12503 should be installed on the correct engine location specified by the vehicle service information.

Quality Assurance

Delphi backs this sensor with OE development and product validation methods, and each unit is tested and calibrated to OE standards for accurate signal performance. That focus on calibration helps support reliable engine management operation on the listed Buick and Chevrolet applications.