Keep the spark and fuel timing dialed in with the Standard Ignition Engine Crankshaft Position Sensor PC239. It installs as a direct-fit replacement for the listed applications: the 1991-1993 BMW 318IS and the 1993 BMW 318I. This sensor monitors the rotational position and speed of the crankshaft and reports that signal to the engine control module, which uses it to coordinate ignition timing and fuel injection.
- Core job: tracks crankshaft position and RPM so the ECM can time spark and injector events.
- Direct-fit replacement: made for the BMW applications listed above.
- Signs this part may need replacing: hard starting or a no-start, stalling, hesitation, or a stored crank-sensor trouble code — if a failed crankshaft position sensor is the cause, this replaces it.
Because these symptoms can have other causes, diagnose the fault before replacing.
Interchange: 12141734816 · 12141734818 · CSS874 · SU5140 · CSS9113 · Manufacturer part number PC239.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the PC239 crankshaft position sensor do?
It monitors the crankshaft's rotational position and speed and sends that signal to the engine control module, which uses it to coordinate ignition timing and fuel injection.
Which vehicles does the PC239 fit?
It is a direct-fit replacement for the 1991-1993 BMW 318IS and the 1993 BMW 318I. Check the Buyer's Guide tab to confirm fitment for your vehicle.
What are signs the crankshaft position sensor may need replacing?
Hard starting or a no-start, stalling, hesitation, or a stored crank-sensor trouble code. Diagnose the cause first, since these symptoms can have other sources.
What interchange numbers does this sensor cross-reference?
It cross-references 12141734816, 12141734818, CSS874, SU5140, and CSS9113. The part's own manufacturer part number is PC239.
Will replacing this sensor fix my no-start on its own?
If a failed crankshaft position sensor is the cause, this replaces it. A no-start can also stem from other components, so confirm the diagnosis before installing.
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