ENGINES CNH NEF F4CE F4DE F4GE F4HE 6 Cylinders, Mechanical and Electronic Drive Common Rail. REPAIR INSTRUCTION MANUAL CNH ENGINES ENGINES FAMILY: F4CE9684 F4DE9684 F4DE9687 F4GE9684 F4HE9684 F4HE9687 Tier III IF YOUR WORKING ON THIS ENGINE THEN THIS IS THE MANUAL FOR YOU.