This camshaft and crankshaft position sensor kit tracks engine timing signals used by the computer to control fuel injection and spark, and a failing pair commonly causes stalling, rough running, or a check engine light.

It's built for the Chevrolet Express, Silverado, Tahoe, Avalanche, and Camaro lineup within the broader Silverado, Equinox, and Malibu 2.4L/5.3L engine family, matching OE part numbers 12585546 and 12591720.

Replacing both sensors together as an OE-matched kit is a reliable way to resolve timing-related drivability issues in one job.