Part Number: FS19856. BLUE BIRD BUSES CONVENTIONAL BUS 2001 - 2001 L6 5.9L 359 CID Cummins Turbo Diesel. BLUE BIRD BUSES TC2000 2003 - 2004 L6 5.9L 359 CID Cummins Turbo Diesel. BLUE BIRD BUSES ULTRA LF 2002 - 2007 L6 5.9L 359 CID Cummins Turbo Diesel.
