(Used) 2000 Meritor/ Rockwell,TRANSMISSION ASSEMBLY- Model: N/A Serial # LB00021745 Truck: 2001 MACK CH613 Engine: MACK E7 For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY, ELKTON, MD 21921