Delphi SS12126 Engine Crankshaft Position Sensor

Delphi SS12126 Crankshaft Position Sensor

The Delphi SS12126 engine crankshaft position sensor is built for accurate engine speed and crank position signal input. It is a direct-fit ignition sensor for select Chevrolet Colorado, GMC Canyon, and Hummer H3 applications, with OE-style validation and calibration standards that support consistent readings.

For drivers and technicians servicing a 2004-2007 Chevrolet Colorado, 2004-2007 GMC Canyon, or 2006-2007 Hummer H3, this Delphi crankshaft position sensor provides a dependable replacement option for engine management repairs.

Key Features

• Delphi SS12126 engine crankshaft position sensor
• Black housing with oval connector shape
• 1 female connector with 2 male terminals
• Blade terminal type for OE-style electrical connection
• No wiring harness included
• Package includes the engine crankshaft position sensor and instruction sheet
• Tested and calibrated to OE standards for accurate signal output

Detailed Description

Delphi designs its sensor lineup using OE development and product validation methods, and the SS12126 follows that approach for crankshaft position monitoring. This sensor helps the engine control module track crankshaft position and rotational speed, which is critical for ignition timing and fuel delivery on the Chevrolet Colorado, GMC Canyon, and Hummer H3 platforms listed below. The SS12126 part number is also a useful reference when matching the correct replacement sensor during diagnosis or repair.

This part cross-references Standard Ignition PC556 for the same application.

Vehicle Fitment

• Fits 2004-2007 Chevrolet Colorado, N/A
• Fits 2004-2007 GMC Canyon, N/A
• Fits 2006-2007 Hummer H3, N/A

What It Helps Fix

• Crankshaft position sensor fault codes
• Hard starting or no-start conditions related to crank signal loss
• Intermittent stalling caused by inaccurate engine speed input
• Rough running from unstable ignition timing data
• Check engine light concerns tied to crankshaft sensor performance

Installation Notes

Verify connector shape, terminal count, and vehicle application before installation. The SS12126 uses a female oval connector with blade terminals, so the harness connection should match the original sensor configuration. Inspect the mounting area and related wiring for damage, corrosion, or oil contamination before installing the replacement sensor.

Quality Assurance

Delphi validates this crankshaft position sensor to OE standards and calibrates it for accurate readings. That testing process supports reliable signal output and helps reduce repeat repairs after installation.