2007 Mercedes MBE 904, School Bus, ECMs, Fits to: Thomas Built Saf-T-Liner HDX, (Used) 2006 Mercedes OM 906 LA, ECM- Serial Number: 0906557726, Family Number: 6MBXH6.37DJA, Horsepower: 260, Engine: P-29444, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921, Serial# 0906557726, Casting# 0906557726, Truck Year 2007 1T7YN4A2671284155