0 Allison 3000 RDSP, , Transmission Assys, Fits to: , (Used) 2007 Allison, TRANSMISSION ASSEMBLY- Model: 3000RDS_P, Serial Number: 6510755381 Engine: Cummins QSB-155C, 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# 6510755381, Casting# 6510755381, Engine Make Cummins