NOTE: Price listed is for reference only and is subject to change. Please call toll-free 1-800-282-9319 for current price and availability. Additional core charge of 2000.00 not included. Remanufactured Cummins 6C/8.3L Long Block Supreme Engine 61F1M083BR 1991-93 Bus Applications, Rear Sump Oil Pan, Un-notched Cylinder Head, P Pump, Low Mount PTO, Reinforced Block, CPL 1439, 1262, 1263, 1406 Ordering Instructions: Provide Engine Serial and CPL Number Call us toll-free 1-800-282-9319 for ordering assistance and complete warranty information.