Specifications B3.9 B5.9 4BT 6BT ADVERTISED HP 110-125 150-173 HP 82-93 KW 112-129 KW PEAK TORQUE 346-373 LB-FT 453-580 LB-FT 469-506 N.M 614-786 N.M NUMBER OF CYLINDERS 4 6 OIL SYSTEM 11.5 U.S. QT 17.2 U.S. QT CAPACITY 10.9 LITERS 16.3 LITERS WET WEIGHT 745-782 LB 952-997 LB 338-355 KG 432-452 KG LENGTH 30.6 IN 40.0 IN 777 MM 1016 MM WIDTH 24.6 IN 24.9 IN 625 MM 632 MM HEIGHT 37.7 IN 37.9 IN 958 MM 963 MM authoritative info from: http://www.everytime.cummins.com/every/misc/brochures.page?