6068TFM John Deere Marine Engine

6068TFM John Deere Marine Engine

The 6068TFM features a 6 cylinder engine with high-capacity heat exchanger and watercooled turbocharger.



  • Water cooled Turbocharger and Exhaust Manifold for a Cooler and quieter environment for vessel and crew. The system provides reduced external connections that can leak or break. This reduces the expense of chronic leaks and hoses chafing.
  • The 6068TFM design lends itself to in-frame rebuilding at the end of its service life. MER sells engine repair kits that include cylinder kits (with pistons and rings loaded), gaskets, rod and main bearings, and new connecting rod bolts. With a rebuild kit from MER, a spare cylinder head, and a water pump, the engine can be easily rebuilt “in-frame” in 8 hours.
  • Corrosion resistant components help hold engine paint better and provide engine corrosion protection from the effects of salt air and splashing bilge water. The finish on MER equipment protects equipment from corrosion that would cause replacement at rebuild time.


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Number of Cylinders6
Displacement- cu. in (L)414 (6.8)
Bore and Stroke–in. (mm)4.56 x 5.06 (107×127)
Compression Ratio17.6:1
Engine TypeIn-line, 4-Cycle
Length–in. (mm)44.9 (1141)
Width–in. (mm)27.7 (703)
Height–in. (mm)35.9 (912)
Weight, dry–lb (kg)1301 (590)