Sewart: Marine Based
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MG-5091SC
Standard Equipment
- Vertical offset, cast iron housing
- Mechanical control valve
- Oil strainer
Options
- SAE J617 housing no. 1
- SAE J617 housing no. 2
- 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
- Oil filter mounted
- 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. 592 Nm)
- Hydraulic clutchable PTO:
- SAE J744 size 127-4, 32-4 (SAE “C”, 4-bolt, max. 415 Nm)
- Shaft with key (max. 415 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 |
|
1.17, 1.45, 1.71 2.04 |
522 kW (700 hp) |
471 kW (632 hp) |
354 kW (475 hp) |
274 kW (368 hp) |
242 kW (325 hp) |
| 2.45 |
474 kW (635 hp) |
442 kW (593 hp) |
336 kW (450 hp) |
265 kW (355 hp) |
|
| 2.95 |
447 kW (600 hp) |
418 kW (561 hp) |
|||
| 3.33 | Contact Twin Disc | Contact Twin Disc |
268 kW (360 hp) |
219 kW (293 hp) |
205 kW (275 hp) |
* Ratings shown for use with standard right hand rotation engines. The maximum allowable rated engine speed is 3000 rpm.
DIMENSIONS & WEIGHT
| C | 173 mm (6.82”) |
| S | 158 mm (6.22”) |
| F | 421 mm (16.59”) |
| L | 260 mm (10.25”) |
| R | 176 mm (6.94”) |
| Weight | 220 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.