MG 6600 DC

Palmer Johnson is North America’s leading distributor for all of your Twin Disc MG-6600DC (MG6600DC) marine gear transmission needs. Whether you are needing a replacement marine gear transmission, parts to do the repair yourself, or if you are wanting the factory trained technicians of PJ’s service department to rebuild your Twin Disc MG-6600DC transmission, we’ve got you covered. Contact us today and you’ll be back up and running in no time!

MG-6600 DC

Standard Equipment

  • Vertical offset, aluminum housing
  • Electric GP-valve with manual override
  • EC050 Profile module – interface for engagement signals
  • Oil cooler for raw water cooling
  • Oil strainer and oil filter


  • SAE J617 housing no. 0
  • Flexible coupling for 18” flywheel (SAE J620 size 460)
  • Input flange for freestanding installation
  • EC050 E-Troll module – interface for engagement & trolling signals
  • Harness with single point interface to Twin Disc EC300 control system
  • Output shaft driven trailing pump
  • Companion flange/ bolts set
  • Monitoring devices to customer’s specification
  • Mounting brackets
  • Live PTO
    • SAE J744 size 127-4, 32-4 (SAE “C”, 4-bolt) – max. 600 Nm
  • Hydraulic Clutchable PTO
    • SAE J744 size 127-4, 32-4 (SAE “C”, 4-bolt) – max. 600 Nm

Contact Us

Maximum 1445 kW (1938 hp) @ 2300 RPM [Pleasure Craft duty]

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Authorized Distributor

Palmer Johnson is an authorized distributor and service provider for Twin Disc products.

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Service and Support

Seven master rebuild centers, ten full-service centers, and an extensive dealer network to serve you.