ALL THE POWER YOU DEMAND ON THE WATER

Transmissions

Twin Disc engineers more than 100 marine transmission models, from 35 to more than 4000 horsepower.

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QuickShift

Experience the world’s smoothest, fastest shifting—plus amazing slow speed control. QuickShift uses internal clutch actuation to deliver cushioned torque and optimum power in milliseconds, whether you nudge the throttle or go full out.


Standard

Twin Disc has built a worldwide reputation on our ability to design, develop, and manufacture efficient, reliable power transmission systems for a variety of vessels and applications.


Electric & Hybrid

These innovative marine transmissions for serial hybrid and diesel electric propulsion support greener power transmission while delivering the reliability you expect from Twin Disc.


QUICKSHIFT®TRANSMISSION

MGX-5075SC

The perfect propulsion system starts with the technology of Twin Disc’s QuickShift transmissions. This fully integrated system includes the transmission, clutch, valves, actuators and electronic controls resulting in fast, smooth clutch engagement, exceptional boat handling, precise speed control and an incredibly smooth ride.

MGX-5075-SC
Standard Equipment
  • Near coaxial, aluminum housing
  • Electric GP-valve with manual override
  • EC600PC e-troll module and propulsion control system
  • Oil strainer and oil filter
Options
  • 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
  • EC600PC e-troll module and propulsion control system
  • 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)
INPUT RATINGS

KILOWATTS (KW) (HORSEPOWER (HP))*

For service classification definitions and important notes refer to the Twin Disc Marine Product Guide or contact Twin Disc directly.

Reduction Ratios

Pleasure Craft

Light Duty

Intermediate Duty

Medium Duty

Continuous Duty

:1

@ 2500 RPM

@ 2300 RPM

@ 2100 RPM

@ 1800 RPM

@ 1800 RPM

1.06, 1.33, 1.53
1.77, 2.05

455 kW
(610 hp)

368 kW
(493 hp)

283 kW
(380 hp)

205 kW
(275 hp)

186 kW
(249 hp)

2.53

410 kW
(550 hp)

355 kW
(476 hp)

268 kW
(360 hp)

205 kW
(275 hp)

186 kW
(249 hp)

2.88

(540 hp)

(467 hp)

(350 hp)

205 kW
(275 hp)

186 kW
(249 hp)

* Ratings shown for use with standard right hand rotation engines. The maximum allowable rated engine speed is 3500 rpm.

DIMENSIONS & WEIGHT

Specifications subject to change without prior notice in the interest of continual product improvement. Contact your local Twin Disc representative for engineering specifications, Survey Society Approvals and Classifications.

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C

15 mm (0.59”)

S

178 mm (7.00”)

F

373 mm (14.68”)

L

254 mm (10.00”)

R

254 mm (10.00”)

Weight

123 kg *

* dry weight, including SAE #2 housing and SAE 290 flexible coupling

Publications:
Installation Drawings

Drawing Number

Input Connection

Control Valve

Heat Exchanger

Notes

Download

PX13174

SAE #2 / 11.5″

electric, EC300 interface

Yes

SAE #4 output flange

DWG
SLDPRT

PX13174A

SAE #1 / 14″

electric, EC050

SAE #4 output flange

DWG
SLDPRT

PX13174B

SAE #3 / 11.5″

electric, EC050

SAE #4 output flange mounting brackets

DWG
STEP
IGS

PX13174C

SAE#3 CAT / 11.5″

electric, EC300 interface

Yes

mounting brackets

DWG
STEP
IGS

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