We are an Aftermarket, and OE Supplier for Engine Replacement Parts.  We specialize in both Domestic and Foreign Auto Parts. 

This is a Brand New Genuine GM OE Factory GM Air / Smog Injection Pump. 

This ships exactly as photographed. 

Item Description : GM OEM Secondary Air Injection Pump; Chevrolet GMC 

Manufacture : GM OEM 

GM Part : 12633981 , 12656666 , 12654577 

Fits the Following Makes/ Models (Please Confirm your old part number is 12633981 Prior to Purchase):