- Marine Gears
- Power Take-Offs
- Transmissions
- Torque Converters
- Air Clutches
- Pump Drives
- Electronic Controls
- Hydraulic PTOs
Parts, Units & Engineering
800-341-4334 Email UsTwin Disc Marine Gears
Palmer Johnson specializes in Twin Disc marine gear applications, service and support. Palmer Johnson inventories an extensive range of marine gears and service parts. An authorized distributor for more than 30 years, Palmer Johnson has the technical and service experience our customers demand for new marine applications, repowers, repair and parts.
Twin Disc supplies the commercial, pleasure craft and military segments of the marine market with transmissions, surface and waterjet drives, propellers and electronic controls.
MG-360 Specifications
Maximum 60 kW (80 hp) @ 3600 RPM [Pleasure Craft]
MG-360 Overview
Standard Equipment
- Vertical offset, aluminum housing
- Mechanically operated conical clutch
- Mechanical control valve
Options
- Borg Warner housing
- SAE J617 housing no. 4
- SAE J617 housing no. 5
- Spring damper plate
- Control cable bracket
- Raw water heat exchanger
MG-5005A Specifications
Maximum 110 kW (148 hp) @ 3600 RPM [Pleasure Craft]
MG-5005A Overview
Standard Equipment
- Vertical offset, aluminum housing
- 8° down angle on output shaft
- Mechanical control valve
- Oil strainer
Options
- SAE J617 housing no. 4
- SAE J617 housing no. 5
- Borg Warner housing
- Flexible coupling for 6.5” flywheel (SAE J620 size 165)
- Flexible coupling for 7.5” flywheel (SAE J620 size 190)
- Control cable bracket
- Mechanical trolling valve
- Oil cooler
- Companion flange
MG-5020SC Specifications
Maximum 257 kW (345 hp) @ 3600 RPM [Pleasure Craft]
MG-5020SC Overview
Standard Equipment
- Vertical offset, cast iron housing
- Mechanical control valve
- Oil strainer
Options
- SAE J617 housing no. 3
- SAE J617 housing no. 4
- Borg Warner housing
- Flexible coupling for 11 ½” flywheel (SAE J620 size 290)
- Electric control valve (12 VDC or 24 VDC)
- Control cable bracket
- Mechanical trolling valve
- Oil cooler
- Companion flange
MG-5025A Overview
Standard Equipment
- Vertical offset, aluminum housing
- 8° down angle on output shaft
- Mechanical control valve
- Oil strainer
Options
- SAE J617 housing no. 3
- SAE J617 housing no. 4
- SAE J617 housing no. 5
- Borg Warner housing
- Flexible coupling for 8” flywheel (SAE J620 size 200)
- Flexible coupling for 10” flywheel (SAE J620 size 255)
- Flexible coupling for 11 ½” flywheel (SAE J620 size 290)
- Electric control valve (12 VDC or 24 VDC)
- Control cable bracket
- Mechanical trolling valve
- Oil cooler
- Companion flange
MG-5050 Specifications
Standard Equipment
- Vertical offset, aluminum housing
- 10° down angle on output shaft
- Mechanical control valve
- Oil strainer
Options
- SAE J617 no. 2 to SAE J617 no. 1 housing adaptor
- SAE J617 housing no. 2
- SAE J617 housing no. 3
- SAE J617 housing no. 4
- Flexible coupling for 14” flywheel (SAE J620 size 355)
- Flexible coupling for 11.5” flywheel (SAE J620 size 290)
- Flexible coupling for 10” flywheel (SAE J620 size 255)
- Electric control valve (12VDC or 24 VDC)
- Mechanical trolling valve
- Oil cooler
- 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. 35 Nm)
- SAE J744 size 101-2/4, 22-4 (SAE “B”, 2/4-bolt, max. 197 Nm)
MG-5050 Overview
MG-5050 SC & MG-5050 A
- 11.5” torsional input couplings
- Clutch fill rate-of-rise valve
- Oil strainer
- SAE housings no. 3 and 2
MG-5050RV
- Remote V-drive, aluminum housing
- 10° down angle on output shaft
- Input flange
- Mechanical control valve
- Oil strainer
MG-5055A Specifications
Maximum 298 kW (400 hp) @ 3600 RPM [Pleasure Craft]
MG-5055A Overview
Standard Equipment
- Vertical offset, aluminum housing
- 10° down angle on output shaft
- Mechanical control valve
- Oil strainer
Options
- SAE J617 housing no. 3
- SAE J617 housing no. 4
- Borg Warner housing
- Flexible coupling for 11 ½” flywheel (SAE J620 size 290)
- Electric control valve (12 VDC or 24 VDC)
- Control cable bracket
- Mechanical trolling valve
- Oil cooler
- Companion flange
MG-5061 Specifications
Standard Equipment
- Vertical offset, aluminum housing
- 7° down angle on output shaft
- Mechanical control valve
- Oil strainer
Options
- SAE J617 no. 2 to SAE J617 no. 1 housing adaptor
- SAE J617 housing no. 2
- SAE J617 housing no. 3
- SAE J617 housing no. 4
- Flexible coupling for 14” flywheel (SAE J620 size 355)
- Flexible coupling for 11.5” flywheel (SAE J620 size 290)
- Flexible coupling for 10” flywheel (SAE J620 size 255)
- Input flange for freestanding installation
- Electric control valve (12VDC or 24 VDC)
- Mechanical trolling valve
- Oil cooler
- 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. 35 Nm)
- SAE J744 size 101-2/4, 22-4 (SAE “B”, 2/4-bolt, max. 197 Nm)
MG-5061 Overview
MG-5061SC
- Vertical offset, cast iron housing
- Mechanical control valve
- Oil strainer
MG-5061A
- Vertical offset, cast iron housing
- 7° down angle on output shaft
- Mechanical control valve
- Oil strainer
MG-5061RV
- Remote V-drive, cast iron housing
- 7° down angle on output shaft
- Input flange
- Mechanical control valve
- Oil strainer
MG-5062IV Specifications
Maximum 336 kW (450 hp) @ 2800 RPM [Pleasure craft duty]
MG-5062IV Overview
Standard Equipment
- Integral V-drive, aluminum housing
- 15° down angle on output shaft
- Mechanical control valve
- Oil strainer
Options
- SAE J617 no. 2 to SAE J617 no. 1 housing adaptor
- 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
- Electric control valve (12VDC or 24 VDC)
- Mechanical trolling valve
- Oil cooler
- 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. 35 Nm)
- SAE J744 size 101-2/4, 22-4 (SAE “B”, 2/4-bolt, max. 197 Nm)
MG-5065A Specifications
Maximum 448 kW (600 hp) @ 2800 RPM [Pleasure Craft]
MG-5065A Overview
Standard Equipment
- Vertical offset, aluminum housing
- 7° down angle on output shaft
- Mechanical control valve
- Oil strainer
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
- Electric control valve (12VDC or 24 VDC)
- Mechanical trolling valve
- 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)
MG-5075 Specifications
Maximum 468 kW (628 hp) @ 2800 RPM [Pleasure Craft]
Standard Equipment
- Near coaxial, aluminum housing
- 7° down angle on output shaft
- Mechanical control valve
- Oil strainer
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
- Electric control valve (12VDC or 24 VDC)
- Mechanical trolling valve
- 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)
MG-5075 Overview
MG-5075SC
- Near coaxial, aluminum housing
- Mechanical control valve
- Oil strainer
MG-5075A
- Near coaxial, aluminum housing
- 7° down angle on output shaft
- Mechanical control valve
- Oil strainer
MG-5075IV
- Integral V-drive, aluminum housing
- 15° down angle on output shaft
- Mechanical control valve
- Oil strainer
MG-5082 Specifications
Maximum 522 kW (700 hp) @ 2300 RPM [Pleasure Craft]
MG-5082 Overview
STANDARD EQUIPMENT
MG-5082SC
- Near coaxial, aluminum housing
- Mechanical control valve
- Oil strainer
MG-5082A
- Near coaxial, aluminum housing
- 7° down angle on output shaft
- Mechanical control valve
- Oil strainer
MG-5090A Specifications
Maximum 447 kW (600 hp) @ 2600 RPM [Pleasure Craft duty]
MG-5090A Overview
Standard Equipment
- Vertical offset, cast iron housing
- Mechanical control valve
- Oil strainer
Options
- SAE J617 housing no. 1
- Flexible coupling for 14” flywheel (SAE J620 size 355)
- Electric control valve (12VDC or 24 VDC)
- Mechanical trolling valve
- Oil cooler with thermostatic bypass valve
- 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)
MG-5091 Specifications
Maximum 447 kW (600 hp) @ 2600 RPM [Pleasure Craft Duty]
MG-5091 Overview
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)
MG-5095 Specifications
Maximum 597 kW (800 hp) @ 2300 RPM (Pleasure Craft)
MG-5095 Overview
Standard Equipment
MG-5095 SC & MG-5095 A
- SAE J617 housing no. 1
- Flexible coupling for 14” flywheel (SAE J620 size 355)
- Mechanical control valve
- Oil strainer
MG-5095 RV
- Input flange size GWB 587.20
- Mechanical control valve
- Oil strainer
MG-5114DC Specifications
Maximum 673 kW (900 hp) @ 2300 RPM (Pleasure Craft)
MG-5114DC Overview
Standard Equipment
MG-5114 DC
- SAE J617 housing no. 1
- Flexible coupling for 14” flywheel (SAE J620 size 355)
- Mechanical control valve
- Oil strainer
Options
- Flexible coupling for 11.5” flywheel (SAE J620 size 290)
- Electric control valve (12VDC or 24 VDC)
- Trolling valve (mechanical or electrical)
- Oil filter mounted
- Oil cooler with thermostatic bypass valve
- Companion flange/bolts set
- Monitoring devices to customer’s specification
- Mounting brackets
- Live PTO – (max. 592 Nm)
SAE J744 size 127-4, 32-4 (SAE “C”, 4-bolt) - Hydraulic Clutchable PTO – (max. 415 Nm)
SAE J744 size 127-4, 32-4 (SAE “C”, 4-bolt) - Hydraulic Clutchable PTO – (max. 415 Nm)
Shaft with key
MG-5114SC Specifications
Maximum 716 kW (960 hp) @ 2500 RPM [Pleasure Craft]
MG-5114SC Overview
Standard Equipment
MG-5114 SC-HD
- Cast iron housing
- SAE J617 housing no. 1
- Flexible coupling for 14” flywheel (SAE J620 size 355)
- Mechanical control valve
- Oil strainer
Options
- Electric control valve (12 VDC or 24 VDC)
- Mechanical trolling valve
- Oil filter mounted
- Oil cooler with thermostatic bypass valve
- Companion flange/bolts set
- Monitoring devices to customer’s specification
- Mounting brackets
- Live PTO – max. 593 Nm
SAE J744 size 127-4, 32-4 (SAE “C”, 4-bolt) - Hydraulic clutchable PTO – max. 641 Nm
SAE J744 size 127-4, 32-4 (SAE “C”, 4-bolt) - Hydraulic clutchable PTO – max. 641 Nm
Shaft with key
MG-5145 Specifications
Maximum 1007 kW (1350 hp) @ 2300 RPM [Pleasure Craft]
MG-5145 Overview
Standard Equipment
MG-5145 SC & MG-5145 A
- SAE J617 housing no. 1
- Flexible coupling for 14” flywheel (SAE J620 size 355)
- Mechanical control valve
- Oil strainer and oil filter
MG-5145 RV
- Input flange size GWB 587.50
- Mechanical control valve
- Oil strainer and oil filter
Options
- SAE J617 housing no. 0
- Flexible coupling for 18” flywheel (SAE J620 size 460)
- Electric control valve (12 VDC or 24 VDC)
- Trolling valve (mechanical or electrical)
- Oil cooler with thermostatic bypass valve
- Companion flange/bolt set
- Monitoring devices to customer’s specification
- Mounting brackets
- Aluminum cast mounting bracket with fasteners
- Live PTO – max. 593 Nm
SAE J744 size 127-4, 32-4 (SAE “C”, 4-bolt) - Hydraulic Clutchable PTO – max. 641 Nm
SAE J744 size 127-4, 32-4 (SAE “C”, 4-bolt) - Hydraulic Clutchable PTO – max. 641 Nm
Shaft with key
MG-540 Specifications
Maximum 1180 kW (1582 HP) @ 1800 RPM [continous duty]
MG-540 Overview
Standard Equipment
- Vertical offset, cast iron housing
- SAE J617 housing no. 0
- Electric GP-valve with manual override
- EC050 Profile module – interface for engagement signals
- Oil strainer and oil filter
- Companion flange/bolt set
Options
- SAE J617 housing no. 00
- Flexible coupling for 18” flywheel (SAE J620 size 460)
- Flexible coupling for 21” flywheel (SAE J620 size 530)
- Input flange for freestanding installation
- Mechanical control valve
- Harness with single point interface to Twin Disc EC300 control system
- Oil cooler for raw or fresh water cooling
- Special companion flange/bolts set for shaft brake application
- Monitoring devices to customer’s specification
- Mounting brackets
MG-5506 Specifications
Maximum 1489 kW (1997 hp) @ 1800 RPM [intermediate duty]
MG-5506 Overview
Standard Equipment
- Vertical offset, cast iron housing
- Mechanical control valve
- Oil strainer and oil filter
- Oil cooler for raw water cooling
- Companion flange/ bolts set
Options
- SAE J617 housing no. 0
- SAE J617 housing no. 00
- Flexible coupling for 18” flywheel (SAE J620 size 460)
- Flexible coupling for 21” flywheel (SAE J620 size 530)
- Input flange for freestanding installation
- Electric GP-valve with manual override
- EC050 Profile module – interface for engagement signals
- EC050 E-Troll module – interface for engagement & trolling signals
- Harness with single point interface to Twin Disc EC300 control system
- Oil cooler for fresh water cooling
- Output shaft driven trailing pump
- 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. 592 Nm)
MG-6449A Specifications
Maximum 1081 kW (1450 hp) @ 2300 RPM [Pleasure Craft duty]
MG-6449A Overview
Standard Equipment
- Vertical offset, aluminum housing
- 10° down angle on output shaft
- Electric GP-valve with manual override
- EC050 Profile module – interface for engagement signals
- 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
MG-6600DC Specifications
Maximum 1445 kW (1938 hp) @ 2300 RPM [Pleasure Craft duty]
MG-6600DC Overview
Standard Equipment
- Vertical offset, aluminum housing
- Electric GP-valve with manual override
- EC050 Profile module – interface for engagement signals
- Oil cooler for raw water cooling
- Oil strainer and oil filter
Options
- SAE J617 housing no. 0
- 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
MGX-5065 Specifications
Maximum 448 kW (636 hp) @ 2800 RPM [Pleasure Craft Duty]
MGX-5075 Specifications
Maximum 503 kW (675 hp) @ 2800 RPM [Pleasure Craft Duty]
MGX-5086 Specifications
Maximum 543 kW (728 hp) @ 2500 RPM [Pleasure Craft Duty]
MGX-5095 Specifications
Maximum 597 kW (800 hp) @ 2300 RPM [Pleasure Craft Duty]
MGX-5096 Specifications
Maximum 671 kW (900 hp) @ 2300 RPM [Pleasure Craft Duty]
MGX-5114 Specifications
Maximum 673 kW (900 hp) @ 2300 RPM [Pleasure Craft Duty]
Standard Equipment
- Remote V-drive, aluminum housing
- 7° down angle on output shaft
- Input flange
- Electric GP-valve with manual override
- EC050 Profile module – interface for engagement signals
- Oil strainer and oil filter
- Steel fabricated mounting brackets
Options
- Mechanical control valve
- EC050 E-Troll module – interface for engagement & trolling signals
- Harness with single point interface to Twin Disc EC300 control system
- Oil cooler with thermostatic bypass valve
- Companion flange/ bolts set
- Monitoring devices to customer’s specification
- Mounting brackets
MGX-5114 Overview
MGX-5114SC
- Vertical offset, aluminum housing
- SAE J617 housing no. 1
- Electric GP-valve with manual override
- EC050 Profile module – interface for engagement signals
- Oil strainer and oil filter
MGX-5114IV
- Vertical offset, aluminum housing
- 14° down angle on output shaft
- Electric GP-valve with manual override
- EC050 Profile module – interface for engagement signals
- Oil strainer and oil filter
MGX-5114RV
- Vertical offset, aluminum housing
- 7° down angle on output shaft
- Input flange size GWB 587.35
- Electric GP-valve with manual override
- EC050 Profile module – interface for engagement signals
- Oil strainer and oil filter
- Steel fabricated mounting brackets
MGX-5145 Specifications
Maximum 1007 kW (1350 hp) @ 2300 RPM [Pleasure Craft]
MGX-5147 Specifications
Maximum 1142 kW (1531 hp) @ 2300 RPM [Pleasure Craft Duty]
MGX-516 Specifications
Maximum 447 kW (600 HP) @ 1800 RPM [Continuous Duty]
MGX-5170 Specifications
Maximum 507 kW (680 hp) @ 1800 RPM [Continuous duty]
MGX-5202 Specifications
Maximum 969 kW (1300 hp) @ 2300 RPM [Pleasure Craft duty]
MGX-5202SC Specifications
Maximum 969 kW (1300 hp) @ 2300 RPM [Pleasure Craft duty]
MGX-5204SC Specifications
Maximum 1104 kW (1480 hp) @ 2300 RPM [Pleasure Craft duty]
MGX-5225 Specifications
Maximum 716 kW (960 hp) @ 1800 RPM [Continuous Duty]
MGX-5225 Specifications
Maximum 716 kW (960 hp) @ 1800 RPM [Continuous Duty]
MGX-5225 Overview
Standard Equipment
- Vertical offset, cast iron housing
- Electric GP-valve with manual override
- EC050 profile module - interface for engagement
signals - Oil strainer and oil filter
Optional Equipment
- Input hub for freestanding installation
- SAE J617 housing no. 1 or no. 0
- Flexible coupling for 14" or 18" flywheel (SAE J620 size 355 or 460)
- EC050 E-Troll module - interface for engagement and trolling signals
- Mechanical control valve
- Companion flange/bolt set
- Monitoring devices to customer's specification
- Remote mounted electric trailing pump
- Mounted oil cooler for raw or fresh water cooling
- Mounting brackets
- Weight (dry weight with standard equipment): 1046 kg
MGX-5321 Specifications
Maximum 982 kW (1317 hp) @ 1800 RPM [Continuous duty]
MGX-5600 Specifications
Maximum 1760 kW (2360 hp) @ 1800 RPM [Continuous Duty]
MGX-6598 Specifications
Maximum 1462 kW (1961 hp) @ 2300 RPM [Pleasure Craft]
MGX-6599 Specifications
Maximum 1452 kW (1947 hp) @ 2300 RPM [Pleasure Craft Duty]
MGX-6650 Specifications
Maximum 1044 kW (1668 hp) @ 1800 RPM (medium duty)
MGX-6690 Specifications
Maximum 1174 kW (1574 hp) @ 1800 RPM (Medium duty)
MGX-6848 Specifications
Maximum 1342 kW (1800 hp) @ 1800 RPM [Medium Duty]
Palmer Johnson Location
Service Dealers
