2015 CAT 420F2 4EO , BUCKET-FRONT/SIZE AND TYPE: 1.4 YD, Bucket-Rear/Size: 12, Coupler, Drive: 4WD, ECM DOWNLOAD, ENGINE TIER RATING: TIER 4 - INTERIM, Online Owner's Manual , PRODUCT LINK: INQUIRE FOR OPTIONS ON, ROPS: OPEN, TIRE SIZE FRONT: 12.5/80-18, TIRE SIZE REAR: 19.5L-24,