Engines | Mounts, , 2006 CUMMINS ISC 8.3L, Engine Block, (USED) CUMMINS ISC SHORT BLOCK, PART# 3965940R4, PULLED OFF 2006 CUMMINS ISC 330HP, CPL# 8730 CM850, FITS 2004 2005 2006, CASTING# 3965940R4, 8104026, ENGINE SERIAL# 46658587, COMES EXACTLY AS SEEN IN THE PICTURES, INCLUDES CRANKSHAFT, STOCK #3007 CALL (305)688-1101 FOR A SHIPPING QUOTE AND MORE INFORMATION! WARRANTY!