Malibu Monsoon Engine

Malibu Monsoon Engines | Malibu Boats Australia

Award-Winning Performance,
Unmatched Reliability

The new Malibu Monsoon line of engines, the M5Di and M6Di, were developed by Malibu to offer unmatched performance, fuel economy, reliability and sound reduction.

Malibu was able to accomplish this feat by bringing engine production in-house. The engine experts at Malibu worked with industry leaders like GM® Marine, Roush®, Davinci®, and McLaren Engineering® to design and perform the research and development necessary to introduce a line of in-board engines to the towboat industry like no other.

The new M5Di and M6Di direct injection engines are only available in a Malibu. Contact your local dealer to experience the next generation of power today.



5.3L Direct Injected


TORQUE – 400 FT-LBS @ 3800 rpm

POWER – 360 HP @ 5600 rpm

Whether you’re going for another buoy or generating surf swells, Malibu’s new M5Di has the power to get you there with more efficiency than ever before.

6.2L Direct Injected


TORQUE – 460 FT-LBS @ 3800 rpm

POWER – 430 HP @ 5600 rpm

Designed to be the standard engine in some of largest Malibu boats and the first step up in the powertrain options, the M6Di still has the lowest sound level at various RPMs and fuel economy levels comparable to smaller engines.





Reliability was the key focus when designing the new Malibu Monsoon direct injection engines, with engines subject to over 5000 hours of rigorous testing before production started.  The world first F.E.A.D. (Front End Accessory Drive) system is at the core of the new design’s reliability – it makes everything in the engine simpler, eliminating failure points and using glycol for cooling so that critical engine components are not compromised by raw water exposure.  The Malibu Monsoon engines are exclusive to Malibu and built from the ground up in our new start of the art facility at Malibu Boats USA.


It’s not how fast you can pull a rider or skier (that’s horse power), it’s about getting the rider out of the hole quickly and consistently with a boat full of ballast and friends – and that is all about torque curve.  This has been the driving factor behind the Malibu Monsoon direct injection engines.  M5Di and M6Di are tailor made by Malibu for water sports – meaning maximum power is delivered early in the torque curve to give you a boat that never bogs down. The Monsoon’s custom tailored gear ratios act as torque multipliers to deliver even more power when you need it.


Malibu’s new line of Monsoon Engines is so quiet, you can have a conversation when running full speed down the lake.  Higher compression of Malibu’s direct injection engines, along with acoustic foam and cast iron manifolds that wrap around the cylinder heads all combine to make the quietest engine the tow boat industry has ever heard.


Malibu Monsoon engines are also the greenest engines the tow boat industry has ever seen. They don’t just meet CARB (California Air Resources Board) five star emission standards, they exceed them.  The engines are certified 5 star ultraclean with 50% lower emissions than 4 star ratings on other tow boats. The lowest emissions in the tow boat industry and best in class fuel economy is made possible thanks to direct injection technology.  The drive train has been tuned to give the most power at the lowest RPMs – exactly what you need for water sports. Best in class fuel efficiency and the lowest emissions in the industry are only available on Malibu and Axis.



  • CARB 5 Star Ultra Clean
  • Cast Aluminum Block and Cylinder Heads
  • Cast Aluminum Marine Oil Pan
  • Dual Equal Cam Phasing – 2V
  • Glycol Cooled Oil/Transmission Heat Exchangers
  • Mess Free Oil Changes with Cartridge Style Oil Filter
  • Reversed Fresh Air Induction
  • Reversed Composite Intake Manifold
  • 11:1 Compression
  • Closed Cooled ½ System
  • Custom Hydrophobic Flame Arrestor