JOHN DEERE 6068TF220, 170 HP- TIER 2- OPEN POWER UNIT MECHANICAL 6.8L ONE YEAR 2,000 HOUR WARRANTY, ADD PTO $1,500.00 SAE 3. INCLUDES - RADIATOR AND MOUNTINGS - MUFFLER - AIR CLEANER - INSTRUMENT PANEL - THROTTLE CABLE. JOHN DEERE 6068 6.8L IRRIGATION POWER UNIT., Engine, REMANUFACTURED