2009 Mercedes OM 906 LA, School Bus, Engine Assys, Fits to: Thomas Built Saf-T-Liner HDX, (Used) 2009 Mercedes OM 906 LA, ENGINE ASSEMBLY- For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Horse Power ., Serial# TBD, Casting# TBD 1T7YN4A2491113939