Twin Disc MGX-6620 Series Marine Gears

The Twin Disc MGX-6620 series consists of three models being the MGX-6620SC, MGX-6620A, & MGX-6620RV (MGX6620SC, MGX6620A, & MGX6620RV). Palmer Johnson is North America’s leading distributor for all of your MGX-6620 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 MGX-6620 transmission, we’ve got you covered. Contact us today and you’ll be back up and running in no time!

Standard Equipment

MGX-6620 SC & MGX-6620 A

• SAE J617 housing no. 0
• Flexible coupling for 18" flywheel (SAE J620 size 460)
• Electric GP-valve with manual override
• EC050 Profile module – interface for engagement signals
• Integral oil cooler for raw water cooling
• Oil strainer and oil filter

MGX-6620 RV

• Input flange size GWB 587.50
• Electric GP-valve with manual override
• EC050 Profile module – interface for engagement signals
• Integral oil cooler for raw water cooling
• Oil strainer and oil filter

Options

• Flexible coupling for 14” flywheel (SAE J620 size 355)
• 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 101-2, 25-4 (SAE “B-B”, 2-bolt) – max. 337 Nm
  • 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
• Secondary live PTO for power steering pumps
  • SAE J744 size 101-2, 22-4 (SAE “B”, 2-bolt) – max. 75 Nm or
  • SAE J744 size 82-2, 16-4 (SAE “A”, 2-bolt) – max. 75 Nm