The crankshaft position sensor tracks crankshaft rotation and reports it to the engine computer for precise fuel injection and ignition timing. A failing sensor often causes stalling, hard starts, or a check engine light.

This sensor fits the GMC Terrain, Chevy Equinox, Malibu, and Buick lineup within the broader Terrain, Acadia, and Sierra 1.5L/2.0L Turbo and 5.3L engine family, matching OE part number 12588992.

OE-matched construction gives confidence in reliable, drop-in compatibility and accurate timing signals.