Camshaft Position Sensor

Helps keep engine timing and fuel injection running in sync
Helps provide proper alignment, positioning, and spacing for easy installation
Synchronizes engine valves and pistons for excellent engine performance

Crankshaft Position Sensor

This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle Helps keep engine timing and fuel injection running in sync Helps provide proper alignment, positioning, and spacing for easy installation Synchronizes engine valves and pistons for excellent engine performance

Oxygen Sensor

Silverado, Sierra 2500 HD. Gas. Front. Silverado, Sierra 3500 HD. This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle Detects oxygen content in the exhaust gases to help optimize emissions This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Mass Air Flow Sensor

6.6L gas. 5.3 & 6.2L. 6.6L diesel, engine compartment. 3.0L diesel. 3.0L twin-turbo. Corvette. 6.2l. 1.2L turbo.

Coolant Temp Sensor

Helps keep engine running at proper temperature Alerts vehicle operator of high engine temperature conditions