(Used) 2000 MERITOR/ROCKWELL, (MT), TRANSMISSION ASSEMBLY- Model: M12G12AM12005 Serial number: LB00015940 Part Number: S07-17509-201 Engine: Cummins ISM For more information about this item, give us a call. We ship worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921