(GOOD TESTED HYDRAULIC POWER UNIT) 2012 Caterpillar C4.4 Diesel Engine (TIER 3), Serial # 44418960, Hours: 766, AR #: 308-5585, Displacement 4.4L, 127HP @ 2200RPM, Long Block Part # 20R-2449, Prime AR # 20R0364, Hydraulic Pump Drive, visit JJREBUILDERS for more information on this and any other diesel engine you may be looking for. Call for more information . INV # 005906