Delphi SS12018 Engine Crankshaft Position Sensor

Delphi SS12018 Crankshaft Position Sensor

The Delphi SS12018 engine crankshaft position sensor provides the signal the engine control system uses to monitor crankshaft speed and position. Built with Delphi’s OE heritage and application knowledge, it is a direct-fit replacement for select INFINITI models, including Q70, Q70L, QX80, QX70, FX50, M56, and QX56.

Key Features

• Engine crankshaft position sensor for ignition and engine management systems
• Black housing with a single oval female connector
• 3-pin terminal design with male terminals
• No wiring harness included
• Package contents include the sensor and instruction sheet
• OE-style replacement backed by Delphi’s 100 years of OE experience

Detailed Description

The Delphi SS12018 is an engine crankshaft position sensor engineered for accurate crankshaft signal input on select INFINITI vehicles. It uses a 1-connector, 3-terminal configuration with an oval connector shape and pin-style terminals for a direct replacement fit. This part number is commonly searched as Delphi SS12018 for INFINITI Q70, Q70L, and QX80 applications, as well as related FX50, M56, QX56, and QX70 coverage.

Delphi builds aftermarket parts using OE knowledge developed through long-term supplier experience with major automakers. That background is reflected in the sensor’s fit, connector design, and application-specific construction for ignition and engine sensor service.

This part cross-references DENSO Auto Parts 196-4004 for the same application.

Vehicle Fitment

• Fits 2014-2019 INFINITI Q70, N/A
• Fits 2015-2019 INFINITI Q70L, N/A
• Fits 2014 INFINITI QX70, N/A
• Fits 2014-2015 INFINITI QX80, N/A
• Fits 2016 INFINITI QX80, N/A, to 08/2015
• Fits 2009-2013 INFINITI FX50, N/A
• Fits 2011-2013 INFINITI M56, N/A
• Fits 2011-2013 INFINITI QX56, N/A

Common Issues This Sensor Can Address

• Crankshaft position signal loss
• Engine stalling or intermittent no-start conditions
• Rough running caused by inaccurate crankshaft data
• Check engine light concerns related to crankshaft sensor faults
• Driveability problems tied to failed engine speed input

Installation Notes and Tips

Confirm connector style, terminal count, and vehicle build date before installation, especially on 2016 INFINITI QX80 models with the 08/2015 cutoff note. Inspect the connector and wiring for corrosion, bent pins, or damaged locking tabs before installing the new sensor. Use the included instruction sheet and verify the sensor seats fully before clearing diagnostic trouble codes.

Quality Assurance

Delphi applies OE heritage and supplier experience to this aftermarket crankshaft position sensor, with design and application knowledge carried into the replacement part. The SS12018 is built for the specified INFINITI fitments and packaged with an instruction sheet for service support.