2012 CAT 3512CINCOR .- FOLEY INSPECTED -ATTACHMENTS SHOWN SUBJECT TO CHANGE AND MAY NOT BEINCLUDED IN PRICE-CAT 3512C ATTAC FRAC ENGINE; CORE;2250HP @ 1900RPM; TIER 2 , 2250HP @ 1900RPM, CAT 3512C ATTAC FRAC ENGINE, CORE, Online Owner's Manual , TIER 2,