QUICKSHIFT®TRANSMISSION

MGX-5114SC

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.

Standard Equipment
  • Vertical offset, aluminum housing
  • Electric GP-valve with manual override
  • EC600PC profile module – interface for engagement signals
  • Oil strainer and oil filter
  • SAE J617 housing no. 1 (MGX-5114SC only)
  • 7° down angle on output shaft (MGX-5114RV only)
  • Input flange size GWB 587.50 (MGX-5114RV only)
Optional Equipment

• SAE J617 housing no. 1 (standard on MGX-5114SC)
• Flexible coupling for 14″ flywheel (SAE J620 size 355)
• Flexible coupling for 11.5″ flywheel (SAE J620 size 290)
• 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, 22-4 (SAE “B”, 2-bolt) – max. 209 Nm
SAE J744 size 101-2, 25-4 (SAE “B-B”, 2-bolt) – max. 338 Nm
SAE J744 size 127-4, 32-4 (SAE “C”, 4-bolt) – max. 593 Nm
• Hydraulic clutchable PTO
SAE J744 size 127-4, 32-4 (SAE “C”, 4-bolt) – max. 600 Nm

INPUT RATINGS

Reduction Ratio :1

Pleasure Craft @ 2300 RPM

Light Duty @ 2300 RPM

Intermediate Duty @ 2100 RPM

Medium Duty @ 1800 RPM

Continuous Duty @ 1800 RPM

Input Speed Limits

MGX-5114SC

0.93, 1.02, 1.12, 1.24, 1.50, 1.74, 2.04

673 kW (843 hp)

629 kW (843 hp)

504 kW (676 hp)

394 kW (528 hp)

358 kW (480 hp)

450 minimum–
3000 maximum
(2800 maximum
for 0.93:1)

MGX-5114SC

2.54

673 kW (843 hp)

629 kW (843 hp)

466 kW (625 hp)

394 kW (528 hp)

358 kW (480 hp)

450 minimum–
3000 maximum
(2800 maximum
for 0.93:1)

MGX-5114SC

3.00

540 kW (724 hp)

540 kW (724 hp)

451 kW (605 hp)

361 kW (484 hp)

328 kW (440 hp)

450 minimum–
3000 maximum
(2800 maximum
for 0.93:1)

MGX-5114RV

1.03, 1.20, 1.48, 1.75, 1.92, 2.04

629 kW (843 hp)

629 kW (843 hp)

466 kW (625 hp)

357 kW (479 hp)

347 kW (465 hp)

450 minimum–
3000 maximum

MGX-5114RV

2.50

629 kW (843 hp)

629 kW (843 hp)

400 kW (536 hp)

338 kW (453 hp)

321 kW (430 hp)

450 minimum–
3000 maximum

For service classification definitions and important notes refer to the Twin Disc Marine Product Guide or contact Twin Disc directly. Ratings shown for use with standard right-hand rotation engines.

Installation Drawings

Drawing Number

Input Connection

Control Valve

Companion Flange

Heat Exchanger

PTO

Download

PX13253

SAE #1 / 14″

mech. + troll. (MG-5114SC)

Yes

Yes

SAE C (live)

DWG

PX13254

SAE #1 / 14″

electric, EC050

Yes

Yes

SAE C (live)

DWG

PX13254B

SAE #1 / 14″

electric, EC300 interface

SAE C (live)

DWG
STEP
IGS

PX13254C

SAE #1 / 14″

electric, EC050

Yes

SAE C (live)

DWG

PX13254D

SAE #1 / 14″

electric, EC050

Yes

Yes

SAE B (live)

DWG
STEP
IGS

DIMENSIONS & WEIGHT

MGX-5114SC

Enlarge

C

190 mm (7.47”)

S

161 mm (6.33”)

F

483 mm (19.00”)

L

279 mm (11.00”)

R

191 mm (7.50”)

Weight

208.5 kg *

*Dry weight including SAE #1 housing and SAE 355 flexible coupling

DIMENSIONS & WEIGHT

MGX-5114RV

Enlarge

C

203 mm (8.00″)

S

133 mm (5.25″)

F

54 mm (2.12″)

L

449 mm (17.69″)

F1

279 mm (11.00″)

R

203 mm (8.00″)

A

7 degrees

Weight

240 kg

*Dry weight including SAE #1 housing and SAE 355 flexible coupling

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