Each new sensor is road tested to ensure real world performance and to verify that each design meets Spectra Premium's high standards for quality Camshaft Position Sensor - 2002-2003 GMC Sierra 2500 HD 8.1L V8 - AC Delco 4265-02251441 Thermal Shock Tested Sensor Spectra Premium S10381 Engine Camshaft Position Sensor, Camshaft Reliable Engine Part Product Details Spectra Premium S10541 Engine Camshaft Position Sensor The most important sensors of any engine, the crankshaft and camshaft position sensors are integral to the functionality of the distributor and ignition timing. The crankshaft position sensor monitors as a multifunctional sensor used to set ignition timing Unit is tested for durability through long-cycle thermal shock test (-50 to 300°F), ensuring reliabilty against extreme vibrations Spectra Premium S10541 Camshaft Position Sensor in Camshaft Position Unit is designed to Original Equipment (OE) fit, form and function requirements accomplished by leveraging Spectra Premium's OE engine management systems design expertise
