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The Power Transmission that Fits your Needs

From mid-size and large diesel-powered pleasure craft to a myriad of commercial boat application, Twin Disc has marine transmission systems that precisely fit the horsepower and operating needs of each.

Looking for an Alternator or Motor?

Choose Leroy Somer brand! With over 50 years of experience in power generation and has equipped over 3,000 ships and other equipment. There’s a Leroy Somer unit suitable for your drive system.

Flexible and Reliable Control Cable

TSK® is a leading Original Equipment Manufacturer (OEM) of Control cables, Control boxes, and Steering System for many Japanese and worldwide engines and equipment manufacturers. This includes marine, automotive, construction and industrial applications. TSK® is now the leading replacement parts due to its leading technology and reliability of the highest standard.

As easy as push, twist and go!

The Twin Disc Express Joystick System “EJS” revolutionizes the docking and slow speed maneuvering of diesel-powered, conventional shaftline boats. No lugging, no lurching, no clunking.

It gives instant access to full or incremental power in any direction, immediate yet shockless shifting from forward to reverse, and propeller control down to 50 rpm. The EJS simultaneously actuates and controls engines, transmissions, and thrusters. With intuitive, easy fingertip movements the boat operator can instantaneously control all aspects of vessel direction and speed.

Ultimate Speed and Fuel Efficiency

Arneson Surface Drives are the fastest, most efficient, fuel friendly propulsion system around. When combined with Twin Disc QuickShift® Transmission and EC300 control system, Arneson Surface Drive allows you to control your vessel from almost 1 knot to full speed with just a single stroke of the lever.


Come and Visit us at PhilMarine 2022!

? JEFRA Booth No. 212-214 & 229-231
? Date: June 21 - 23, 2022
? Location: SMX Convention Center Manila, Mall of Asia Complex, Pasay City

Admission is free. See you!

Jefra invites you to PhilMarine 2022!

To All our Valued Customers and Suppliers,

We would like to invite you to the 7th Philippines Marine (PhilMarine) 2022 this coming June 21st to 23rd at SMX Convention Center Manila, Mall of Asia Complex, Pasay City.

? JEFRA Booth No. 212-214 & 229-231

The 7th Edition of Philippines Marine (PHILMARINE) 2022 co-located with Shipbuild Philippines and Offshore Philippines 2022 is the only specialized maritime, shipbuilding, and offshore event in the Philippines that brings together an international congregation of maritime, shipbuilding, offshore, and their supporting industries gathered in the capital of Manila to showcase the latest developments in the maritime industry, to improve the current shipbuilding technology, and to help maintain the Philippines’ current status as the world’s #5 largest shipbuilding industry.

See you there!


Congratulations to Atienza Interisland Ferries Inc.

Congratulations again to Atienza Interisland Ferries Inc. for the newest addition to their fleet, M/V October Lavander. This vessel is equipped with our TWIN DISC (MG 5506) marine transmission. Check their page for inquiries, bookings, and trip schedules of their vessels.


Start Slamming and Start Sliding into Gear!

Not all marine transmissions are created equal.

QuickShift is the right equipment for your vessel – with its fully integrated system that is versatile and tough enough to handle any waterway. It is built with a perfect propulsion system and engineered for smooth operation, precise speed control, and unmatched reliability.


Is your equipment regularly checked? Don’t let it fail mid-sea or at port. Let us take care of it for you.

We conduct FREE on-board inspection of your vessel’s Power Transmission equipment including marine gearbox, generator sets, and power take-off (PTO). Vessel/s must be within Metro Manila to avail of this service.

Get tips on basic Preventive Maintenance procedure from our trained and experienced Technical Service personnel plus a detailed report of the status of your equipment.

Power Take-Offs For All Industrial Engines

We offer Power Take-Offs (PTOs) for various industrial applications such as pump drives, cranes, agricultural machinery, crushers, road building machinery, air compressors, shovels, and oil field service.


Congratulations to Montenegro Shipping Lines Incorporated to the newest addition on their fleet, M/V Santa Editha. This vessel is equipped with our HITACHI NICO (MGN1824BV) marine transmission.

Hitachi Nico offers optimum gearboxes for vessels serving wide range of applications. From pleasure boats to high-speed craft, even fishing and government vessels, Hitachi Nico gears can power it!


Launched last December 17, 2021 and attended by our sales team, MV October Lavander is the newest addition to Atienza Inter-island Ferries Inc.'s fleet which is equipped with our TWIN DISC (MG 5506) marine transmission. Congratulations to Atienza company!

Twin Disc products provide ultimate performance and durability – in any type of vessel.


Choose Leroy Somer brand! With over 50 years of experience in power generation and having equipped over 3,000 ships and other equipment. There’s a Leroy Somer unit suitable for your drive system.


Supplied PARAMINA Air Compressor unit to customer for their shipyard operation.

Paramina offers complete solutions to all customers’ needs, with standard and custom designed compressors together with a comprehensive range of auxiliary products, suitable for every compressed air application specifically Breathing Air [Firefighting, Marine & Offshore, Defence (Army, Navy, Air Force), Motorsports, Oil & Gas, Diving] as well as Industrial/General Purpose Air, Gas (Nitrogen, Helium, Argon) and Paintball/Shooting Sports.


Our Technical Service Group (TSG) has successfully completed the on-site reconditioning of Leroy Somer Alternator at Isabela. The system where the unit is coupled is now in good running condition!


Sea Trial Of M/Y Bayhawk

Commissioning & testing of M/Y Bayhawk equipped with Twin Disc QuickShift marine transmission was successfully conducted by our Technical Service Group (TSG). Experience the power that Twin Disc QuickShift has to offer – smooth and seamless shifts!


Sea Trial Of M/Y Bayhawk

Commissioning & testing of M/Y Bayhawk equipped with Twin Disc QuickShift marine transmission was successfully conducted by our Technical Service Group (TSG). Experience the power that Twin Disc QuickShift has to offer – smooth and seamless shifts!

Durable, Proven & Tested

After a decade of continuous operation using Hitachi Nico Marine Transmission, Marine Vessel NACC Vega of Orophil Shipmanagement Corp. has undergone its first gearbox overhauling to maintain its performance.

Gearbox overhauling is done by thoroughly inspecting and replacing various moving parts. An overhauling is essential to reduce risk of failure and prevent direct and indirect costs such as repairs and penalties. It also significantly increases the life of the equipment, serving cost-savings and sustainability.

We Put Horsepower To Work

Inspection of newly supplied Twin Disc Mechanical Power Take Off units installed at various pumping stations in Bicol region use for irrigation pump system equipment.

Power Take-Offs (PTOs) are used as a standard method for transmitting the power of engines in a great variety of industrial applications such as air compressors, agricultural machinery, crushers, road building machinery, cranes, shovels, pump drives and oil field service. A PTO consists of a complete clutch assembly with shaft and bearings mounted in a cast-iron housing for easy engine installation.

Leroy Somer: Responding fully to market needs

Leroy Somer: Responding fully to market needs

Supplied 3 units Leroy Somer Alternators to couple with end-user’s generator set requirements.

Commissioning and testing assisted and supervised by our Product Engineer in an island in Palawan.

Leroy Somer alternators are suitable for all drive systems thus efficiently respond to customer needs.


Performance And Productivity All In One Transmission

In addition to the DMC Construction Equipment Resources Inc.’s (DMC-CERI) fleet is the newly constructed M/Tug Jonathan V and this tugboat is driven by Hitachi NICO Marine Transmission. The gearbox boosts the control of the coupled engine’s horsepower making the boat perform smoothly and productively.

Unit commissioning and testing was performed and supervised by our Technical Service Group (TSG).


Our Hitachi Nico Marine Transmission installed in M/V Santa Brigida of Montenegro Shipping Lines, Inc.


This is how industrial alternator is reconditioned by our Technical Service Group!

You will never go wrong in choosing our service for your equipment as our expertise is your security and customer satisfaction has always been our core value.

Outreach Program With The Kids

"You should remember the words of the Lord Jesus: 'It is more blessed to give than to receive.'" Acts 20:35

JEFRA Marketing Corporation would like to thank everyone who believed and supported our “Outreach Program With The Kids” held in Sitio Atipan, Brgy. Poblacion, Abra De Ilog, Occidental Mindoro last December 13, 2019.

Above all, thank You Lord for everything! We cannot do this ctivity without Your guidance. The blessings, opportunity and all that we have are truly come from you. All the praise and glory to You, our Lord.

The 6th edition of PHILIPPINES MARINE 2019 (June 18-20)

All the Praise and Glory belong to God for the success of joining the Philmarine 2019. We will continuously provide customer satisfaction as we are always glad to be of service to you!

Friendly Game of Golf 2018

Show off your swing!

Once again, Power Systems Inc. hosted its 3rd Golf Invitational Game on October 18, 2018 at Tagaytay Midlands Golf Club.

The friendly game of golf was actively participated by PSI and JEFRA’s customers respectively. Mr. Kenny Yeo, Twin Disc VP in Asia, was in attendance as well as representatives from Magsaysay Shipmanagement Inc. and SMC Shipping and Lighterage Corporation.

Everyone including the expectators enjoyed the game. As for the first timers, they will be looking forward and will surely prepare for the next year’s event.

Celebrating JEFRA's 30 Years of Service & Commitment

We would also like to extend our genuine appreciation to our loyal customers for opting our products. Truly your continuous patronage gives us the courage and enthusiasm to constantly do our best to serve and provide you the best products and services as you always supported our business.

We really feel honored to have clients like you with us.

We hope to continue this relationship in the forthcoming years.

We’d love to hear from you. Feel free to contact us.