Soft Caterpillar 2632561-00. C-12 MEUI Tier 2, | 6-cylinder, 36 cam, 48 crank, | 707mhp (522kW) @ 2300 rpm, | 2167 ft-lb (2939 N-m) @ 1500 rpm, | Test specs 0K4093 and 0K5293