0 PACCAR MX13, , ECMs, Fits to: , (Used) PACCAR ENGINE ECM - Part Number: 1877245, Serial Number: 5076SB50370061, 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# 5076SB50370061, Part# 1877245,