New  ACDelco 215-603 Secondary Air Injection Pump with Bracket GM 12600828 

Fits:

2006-2008 Chevrolet Cobalt 4 Cyl 2.2L

2007-2008 Pontiac G5 4 Cyl 2.2L

2006 Pontiac Pursuit 4 Cyl 2.2L

2006-2007 Saturn Ion 4 Cyl 2.2L