2012 CAT 740B WT , Air Conditioner, ARTICULATED TRUCK, Bed Configuration: 8000 GALLON WT, Comments: GROUND FORCE 8000 GALLON TANK. SERIAL NUMBER 712301 DATED 06/15/2013, ECM DOWNLOAD: YES, ENGINE TIER RATING: TIER 4 I, Online Owner's Manual , PRODUCT LINK: INQUIRE FOR OPTIONS ON, Retarder, TIRE SIZE: 29.5R25,