More Transmissions >

MGX-6598DC

Standard Equipment

  • Vertical offset, aluminum housing
  • 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

  • SAE J617 housing no. 1
  • SAE J617 housing no. 0
  • 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 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

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 @ 2300 RPM @ 2300 RPM @ 2100 RPM @ 1800 RPM @ 1800 RPM
2.46, 3.03

1462 kW

(1961 hp)

1278 kW

(1714 hp)

1000 kW

(1341 hp)

824 kW

(1105 hp)

771 kW

(1034 hp)

3.48

1241 kW

(1664 hp)

945 kW

(1267 hp)

779 kW

(1045 hp)

729 kW

(978 hp)

3.93

1343 kW

(1801 hp)

1131 kW

(1517 hp)

861 kW

(1155 hp)

710 kW

(952 hp)

664 kW

(890 hp)

4.43

1172 kW

(1572 hp)

1055 kW

(1415 hp)

804 kW

(1078 hp)

662 kW

(888 hp)

619 kW

(830 hp)

* Ratings shown for use with standard right hand rotation engines. The maximum allowable rated engine speed is 2500 rpm.

DIMENSIONS & WEIGHT

Vertical Offset
C 310.0 mm (12.20”)
S 275.0 mm (10.83”)
F 602.5 mm (23.72”)
L 360.0 mm (14.17”)
R 360.0 mm (14.17”)
Weight 580 kg *

* dry weight, including SAE #1 housing and SAE 355 flexible coupling

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.

Publications:

Description Download
Product BulletinPDF
Marine Product GuidePDF
Marine CapabilitiesPDF
QuickShift® BrochurePDF

Installation Drawings:

Drawing Number Input Connection Control Valve Companion Flange Heat Exchanger PTO Notes Download
P72402SAE #0 / 14"electric, EC050PDF DWG SLDPRT
740434BFreestandingelectric, EC050Yesmounting brackets trailing pumpPDF DWG SLDPRT
740434CSAE #0 / 18"electric, EC300 interfaceYesSAE C (live)PDF DWG SLDPRT STEP IGES
740434FSAE #0 / 18"electric, EC300 interfaceYesSAE C (live)SLDPRT STEP IGES
740992SAE #0 / 18"electric, EC300 interfaceYesSAE C (live)SLDPRT
740992ASAE #0 / 18"electric, EC300 interfaceYesSAE B (live)SLDPRT