Malibu MONSOON™ Engines

Designed. Built. Backed. By Malibu.

MONSOON™ M5, M6 & LT4 ENGINES.

Monsoon engines are the ultimate representation of Malibu's leadership in high-performance towboats. Monsoon engines are designed, engineered, and assembled by Malibu Boats to deliver exactly what a wakeboat demands: instant torque, relentless reliability, and seamless integration with tech onboard. By building our engines in-house in collaboration with GM Marine®, we control every detail from power delivery to serviceability, ensuring nothing stands between you and the perfect ride.


Get ready to experience power, torque, efficiency and performance unlike anything else you have seen before. This is Monsoon Season.

Truth About Performance Starts Here

Monsoon Engines are engineered specifically for wake boating, delivering unmatched reliability, torque, and control across every Malibu model. From efficient all-day performance to uncompromising supercharged power, each Monsoon engine is built in-house to meet different riding styles, loads, and ambitions. Watch to learn why engine choice matters more than ever on the water.

THE MOST POWERFUL TOWBOAT ENGINE EVER BUILT

Malibu MONSOON™ Supercharged LT4
652 HP. 670 ft-lbs of torque. No compromises.

OUR NEXT GENERATION ENGINES

The new supercharged LT4 is designed to deliver spectacular wake performance and the kind of unforgettable ride experiences that constantly reinforce why Malibu Boats is the industry leader in towboat performance. Powered by a GM® Marine 6.2L Direct Injected platform and refined by MONSOON Powertrain Engineering, the LT4 delivers unforgettable pull, precision cruise control, sustained power even under the heaviest ballast loads.

TORQUE: 670 FT-LBS @ 3800 rpm

POWER: 652 HP @ 5600 rpm

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 Official World Games Towboat

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

Supercharged

More power, more fun. With 652HP, let your engine do the hard work so you can sit back and enjoy the action behind the boat.
Malibu Boat Monsoon M6Di Engine

MALIBU MONSOON M6
6.2L Direct Injected

TORQUE - 460 FT-LBS @ 3800 rpm

POWER - 430 HP @ 5600 rpm

The perfect price to performance ratio. Featuring all-new advanced MEFI engine management, the M6 provides precise torque delivery for effortless wake creation across a wide range of surf and wake scenarios. An all-new engine shroud with bold Monsoon branding makes a statement under the hatch, while centralized drain locations simplify service and winterization. Unbeatable power, ultimate reliability, and the perfect balance of performance and value.

Malibu Boat Monsoon M5Di Engine

MALIBU MONSOON M5
5.3L Direct Injected

TORQUE - 400 FT-LBS @ 3800 rpm

POWER - 360 HP @ 5600 rpm

Delivers smooth, efficient power with unwavering reliability. Equipped with all-new advanced MEFI engine management, the M5 provides precise torque delivery for consistent, world-class wakes set after set. An all-new engine shroud with bold Monsoon branding makes a statement under the hatch, while centralized drain locations simplify service and winterization. Dependable, efficient, and built to perform all day long.

THE NEXT GENERATION OF MONSOON

Built by boaters for boaters, we continue to build the towboats most reliable engine.

ADVANCED MEFI 7

Developed in collaboration with GM Marine®

The all-new MEFI 7 system is built on GM’s latest-generation E92 Engine Control Module—an advanced controller used across multiple GM vehicle platforms. Far more than just a fuel injection unit, this ECM delivers full engine management capability, including precise torque control, advanced diagnostics, knock control, and integrated cruise strategies. Developed in collaboration with Malibu Monsoon Powertrain Engineering, the MEFI 7 is tailored specifically for the unique demands of tow sports applications, featuring tight integration with Malibu Setpoint Control for smooth and responsive cruise performance on the water.
Exceptional Quality

Malibu [FEAD]

Refined by Malibu

The custom cast, patent-pending front-end accessory drive (FEAD) features a fully integrated cooling system where engine oil fluid temperatures are controlled in a single integrated system that uses an environmentally friendly coolant instead of raw water.
Award-Winning Design

EASY SERVICEABILITY

Easy-to-find drain plugs all in one place

All three engines now feature vastly improved winterization capability, with each engine's winterization drains now all located in one easy-to-access location. This drain arrangement makes servicing and winterizing your Monsoon engine faster and easier than ever before - whether it is done by your dealer or by yourself. That means that at the end of the season, your boat gets out of storage and on to the water faster than ever before.
Powerful & Efficient
Warranty

Rest Assured, You're Covered

The Industry's Best Marine Warranty

After years in development, Malibu is the only towboat manufacturer that designs, builds, and backs our engines in-house. We back our engines as strong as we build them with an industry-best 5 years of factory warranty* when you buy from an authorized Malibu dealer. Our dealers are factory-trained and the best in the business, so you can rest assured that you're covered!

Read More

Explore The Monsoon Legacy

From early innovations to today’s most advanced powertrains, dive deeper into the engineering and performance behind Monsoon engines—and the innovations that continue to drive Malibu forward.

Videos

LT4 Supercharged Power <br> & No Compromises

LT4 Supercharged Power
& No Compromises

The Monsoon LT4 delivers supercharged performance engineered specifically for wake boating. Designed for maximum horsepower, immediate throttle response, and effortless pulls under the heaviest loads, the LT4 sets the standard for premium on-water performance.

M6Di Monsoon Power That Scales With You

M6Di Monsoon Power That Scales With You

The Monsoon M6Di is built for riders and crews who demand more torque, more responsiveness, and more control as their sessions evolve. Featuring direct injection technology and optimized marine tuning, the M6Di delivers confident performance whether you’re running full ballast or stacking long sets.

M5Di Monsoon All Day Reliability

M5Di Monsoon All Day Reliability

The Monsoon M5Di delivers smooth, efficient, and dependable performance designed for full days on the water. With direct injection technology and proven GM Marine engineering, the M5Di offers confident pulls, excellent fuel efficiency, and the reliability Malibu owners depend on.

ENGINES BUILT FOR RELIABILITY

ENGINES BUILT FOR RELIABILITY

Watch and see why Malibu Monsoon Engines were designed to make sure engine issues never cut into your time on the water.

Direct Injection = Quiet Engines

Direct Injection = Quiet Engines

Watch and see why Malibu Monsoon Engines designed a quieter engine allowing you to have full conversations while running on the water.

Engines Built for Power

Engines Built for Power

Watch and see why Malibu Monsoon Engines were designed to deliver peak performance every single time.

Find Your Truth On The Water™

Schedule a demo with your local dealer to experience Monsoon Power first-hand.