Delphi SS12135 Engine Crankshaft Position Sensor - Lower

Delphi SS12135 Crankshaft Position Sensor

The Delphi SS12135 engine crankshaft position sensor is built for direct replacement on select GM applications, including Cadillac DeVille, Cadillac Seville, Cadillac Eldorado, Pontiac Bonneville, and Oldsmobile Aurora models with the lower sensor position. Delphi draws on OE heritage and supplier experience to deliver a sensor that matches the needs of the original engine management system.

Key Features

• Engine crankshaft position sensor for ignition and engine timing input
• Lower position application
• Black housing with oval female connector
• 3-pin male terminal design
• 1 connector, no wiring harness included
• Package includes the sensor and instruction sheet
• Delphi part number SS12135

Application Details

Compatible with 2000-2005 Cadillac DeVille, lower; 2000-2004 Cadillac Seville, lower; 2000-2002 Cadillac Eldorado, lower; 2004-2005 Pontiac Bonneville, lower; and 2001-2002 Oldsmobile Aurora, lower. This Delphi SS12135 crankshaft position sensor is a direct-fit option for vehicles that rely on accurate crankshaft signal input for engine control.

This part cross-references Standard Ignition PC276 for the same application.

What It Helps Address

• Crankshaft signal loss or intermittent signal output
• Engine stalling or hard starting related to sensor failure
• Rough running caused by incorrect crankshaft timing data
• Check engine light conditions tied to crankshaft position sensor faults
• Misfire or hesitation concerns linked to engine speed input errors

Installation Notes

Verify the lower mounting location, connector shape, and terminal count before installation. Compare the original sensor to the Delphi SS12135 to confirm the oval female connector and 3-pin configuration match the vehicle harness. The wiring harness is not included, so reuse the existing harness connection where applicable.

Quality Assurance

Delphi builds aftermarket parts using OE experience and knowledge developed through long-term supplier relationships with major automakers. The SS12135 reflects that OE-focused approach for service replacement on the listed Cadillac, Pontiac, and Oldsmobile applications.