GM 12589867 KNOCK SENSOR SUITS LS1 V8 EVO and SUV applications

and SUV applications

*L98 Camshaft is ground using a factory single bolt pattern

run out in the drive pulley

wanting to replace the camshaft retaining plate

Dual Valve Spring Kit

GM 12589867 KNOCK SENSOR SUITS LS1 V8 EVO and SUV applicationsACDelco GM Genuine Parts knock sensors are the GM recommended replacement for the vehicles original component. They monitor the engine for pinging or spark knock. The sensors create a voltage signal based on the vibrations caused by erratic air fuel mixture combustion. The engine control module then uses that signal to adjust the ignition timing and air fuel mixture. These GM Genuine Parts knock sensors have been manufactured to fit your GM vehicle,