2006 Mercedes OM906LA, School Bus, ECMs, Fits to: Thomas Built Saf-T-Liner HDX, (Used) 2004 Mercedes OM906LA, ENGINE ECM- Serial Number: 902.919-00-423501, Part Number: A 0691 447 46 40 003, Family Number: 4MBXH6.37DJA, Displacement: 6.4L, Horsepower: 260, Serial Number: 0906423501, Part Number: 61222353, E.C.S.: TC, ECM, CAC, EGR, 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# 902.919-00-423501,, Truck Year 2006, VIN 1T7YR4A2261159320 1T7YR4A2261159320