2012 Thomas Built Saf-T-Liner HDX, School Bus, Diesel Particulate Filter (DPF), Fits to: Thomas Built Saf-T-Liner HDX, (Used) 2012 Thomas Built Saf-T-Liner HDX, DIESEL PARTICULATE FILTER- (Inlet Facing Upward, Outlet Facing Rear) INLET- Serial Number: 26084110550, FILTER- EPN: Q629355, CPN: 2871461, Serial Number: 36089115007, ASM- EPN: 205208A, CPN: 2866594, Serial Number: 56089115229, OUTLET- EPN: Q629450, CPN: 2871527, Engine: Cummins ISB, Reference images for condition. For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921, Truck Year 2012, VIN 1T7YN4E24C1146909, 1T7YN4E24C1146909