Bluebird Bus All Models (By Engine) Cummins 5.9L Dsl 1994-1998 All Models (By Engine) Cummins ISB 1997-1998 Thomas Built Bus MVP-EF 6BTA - Allison AT-545 Thomas Built Bus MVP-EF 6BTA - Allison MT-643 Thomas Built Bus MVP-EF ISB - Thomas Built Bus SLF 200 ISB - Thomas Built Bus TL960 6B 1992 - 1998 Allison AT-545 Thomas Built Bus TL960 6B 1992 - 1998 Allison MT-643 Thomas Built Bus Type DSaf-T-Liner-ER 6BG - Allison AT-545 Thomas Built Bus Type DSaf-T-Liner-ER 6BG - Allison MT-643