Twindisc mg 5075

The Twin Disc MG-5075 series consists of three models being the MG-5075SC, MG-5075A, & MG-5075IV (MG5075SC, MG5075A, & MG5075IV). Palmer Johnson is North America’s leading distributor for all of your MG-5075 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-5075 transmission, we’ve got you covered. Contact us today and you’ll be back up and running in no time!

Standard Equipment

MG-5075 SC

  • Near coaxial, aluminum housing
  • Mechanical control valve
  • Oil strainer

MG-5075 A

  • Near coaxial, aluminum housing
  • 7° down angle on output shaft
  • Mechanical control valve
  • Oil strainer

MG-5075 IV

  • Integral V-drive, aluminum housing
  • 15° down angle on output shaft
  • Mechanical control valve
  • Oil strainer


  • SAE J617 housing no. 1
  • SAE J617 housing no. 2
  • SAE J617 housing no. 3
  • Flexible coupling for 14” flywheel (SAE J620 size 355)
  • Flexible coupling for 11.5” flywheel (SAE J620 size 290)
  • Input flange for freestanding installation
  • Electric control valve (12VDC or 24 VDC)
  • Mechanical trolling valve
  • Oil cooler with thermostatic bypass valve
  • Companion flange/ bolts set
  • Monitoring devices to customer’s specification
  • Mounting brackets
  • Live PTO:
    • SAE J744 size 82-2, 16-4 (SAE “A”, 2-bolt, max. 58 Nm)
    • SAE J744 size 101-2/4, 22-4 (SAE “B”, 2/4-bolt, max. 197 Nm)
    • SAE J744 size 101-2/4, 25-4 (SAE “B-B”, 2/4-bolt, max. 337 Nm)

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Maximum 468 kW (628 hp) @ 2800 RPM [Pleasure Craft]

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

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