Big. Bold. Malibu.

Presenting the all-new Malibu Monsoon LT4 Supercharged Engine powered by GM that brings you superior performance and durability. Developed for over two years working with GM Marine, our engine project's strategic partners, the LT4 607 HP Engine delivers equally astounding performance and efficiency. The LT4 is built on reliability, durability and power giving you more time on the water doing what you love.

The LT4 has power found nowhere else in the industry.

Malibu Monsoon LT4

Next Generation Engines

Only Malibu

The Malibu Monsoon LT4 was specifically designed to give you an engine that is easier to maintain, service and operate. Give your boat the power it deserves.
Malibu Monsoon LT4 Engine built by Malibu Boats

Unmatched Reliability

With over 4,000 hours of durability testing in multiple water conditions and extreme altitudes, we are proud to provide you with proven reliability.

Clean Machine

The Malibu Monsoon LT4 has Ultra Low Emissions and is the cleanest high-powered engine in the industry.

Powered by GM Marine

Our close partnership with GM Marine and adherence to the strictest industry standards, the Malibu Monsoon engines are produced in Malibu’s new state-of-the-art engine facility where every boat and engine are water tested.


More power, more fun. With 607 HP, let your engine do the hard work so you can sit back and enjoy the action behind the boat.
Malibu Monsoon LT4 Engine built by Malibu Boats, Video
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Maximizing Power and Efficiency

Malibu Boat Monsoon LT4™ Engine Powered By GM® Marine
Powered By GM® Marine 6.2L Supercharged Direct Injected


TORQUE - 606 FT-LBS @ 3800 rpm

POWER - 607 HP @ 5600 rpm

Designed to deliver torque at low RPMS, the Malibu Monsoon LT4™ brings you all the power you need for a full day on the water you can rely on. The only supercharged towboat engine with Ultra Low Emissions.



  • Ultra Low Emissions
  • Built by Malibu, Powered by GM Marine
  • Unique 3-Way Catalyzed System
  • Direct-Inject Technology
  • Innovative Air Coolers
  • Integrated Oil Cooler/Filter
  • Stainless Steel Water Jacketed Tuned Headers
  • Custom Designed to Increase Reliability

Bringing You the Power

See All Malibu Monsoon Engines

Malibu lets your power your boat your way. See the all Malibu Monsoon engines to choose the best power for you.

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Rest Assured, You're Covered

The Industry's Best Marine Warranty

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