Aquamatic Sterndrive Gasoline

Aquamatic Gasoline is the best of two worlds

The Aquamatic Sterndrive is an Inboard/Outboard (I/O) which combines the best of both inboard and outboard engines. These benefits with the counter-rotating twin propellers, the Duoprop, renders unrivaled and fuel-efficient performance with responsive handling and safe grip. Compared with the outboard engine, the sterndrive engine is placed lower and more forward in the boat. In rough sea conditions, this makes for a more comfortable ride.

Compared to outboards

  • Duoprop for better handling and performance.
  • Freshwater cooling as standard for longer service life.
  • Lower center of gravity – a more comfortable ride.
  • Engine safely inside the boat – longer service life.
  • Higher theft protection – engine built into the boat.
  • Optional Powertrim assistant and Tow-mode with Electronic Vessel Control (EVC).
  • Uncluttered transom – easy access to the water.
  • Increased fuel economy.

Compared to inboards

  • Reduced noise levels and vibrations – enhanced comfort onboard.
  • Improved handling and easier maneuvering.
  • Compact, integrated installation at the stern gives more onboard space.
  • Duoprop for better handling and performance.
  • Higher fuel efficiency – better thrust angles give you better performance.
  • Kick-up function on drive for impact protection.
  • Exhausts emitted through drive, into prop and washed away from boat.
  • Powertrim and optional Powertrim assistant to automatically optimize ride.

A wide range of propulsion alternatives

What propulsion do you need?


4.3‐liter, freshwater‐cooled, direct‐injected gasoline engine with 240 hp.


5.3‐liter, freshwater‐cooled, direct‐injected gasoline engine with 300 hp.


6.2‐liter, freshwater‐cooled, direct‐injected gasoline engine with 430 hp.

Features & Benefits

Cleaner and smarter fun with Aquamatic

Clean transom, increased comfort

Clean transom, increased comfort

With an uncluttered transom you will have easy access to the water, with virtually no exhaust fumes. A true win for boaters interested in watersports or diving. Since almost half of the time boating involves idling, it’s good to know that CO emissions are dramatically reduced at idle – exceeding current US and EU, emission requirements.

Efficiency you can feel

Efficiency you can feel

The larger effective propeller blade area of the Duoprop makes the Aquamatic's driveline more efficient – saving you up to 30% on fuel consumption. Direct fuel injection enables you to get more energy from each and every drop of fuel. On top of this, the Variable Valve Timing allows each movement of the intake and exhaust valve to be optimized for speed and load. Put together, it translates into higher torque and acceleration across the full range of RPM’s. Explore the propeller range to see the advantages available for your vessel.

Focused on fun


Volvo Penta Speed Control automatically adjusts the throttle to maintain constant engine speed during load changes, like when a wake boarder cuts hard, during turns. The engine makes micro throttle adjustments so the operator can concentrate fully on having fun instead.

Top reasons for selecting Aquamatic Sterndrive


Keeping water where it belongs

It’s a no-brainer. Aluminum blocks and fresh water cooling are made for marine use. Eliminating exposure to saltwater not only provides greater engine durability, it also significantly improves a boat’s resale value.


Superior performance

We refuse to accept the compromise of a fixed camshaft. With direct injection and variable valve timing, you get higher torque and acceleration across the full range of RPMs. Think of it as extra power available to you, at any speed.


Service Simplified

Our next generation engines share common parts and common service locations on the engine package, across the full lineup. This means easy serviceability and parts availability. Extended maintenance intervals reduce the total cost of ownership.


Keeping corrosion at bay

Volvo Penta's stand drives are treated with corrosion resistant material and then covered with three layers of marine paint. Salt or brackish water boaters may want to upgrade to OceanX's proprietary titanium-ceramic coating which makes the corrosion resistance up to four times more resistant.


The engine's aluminum blocks and fresh water cooling is constructed specifically for marine use. For greater durability, the engines inner components are fully protected from exposure to salt or sea water and are cooled through an internal water cooling system. And with the convenient Easy Drain solution, you can quickly and easily drain all the raw water from your engine – with a single push of a button.

Engineered for marine demands


On the water you’ll notice exhaust fumes are virtually eliminated, because these are the cleanest marine gas engines on the market today. CO emissions are reduced by 95% at idle, exceeding current EPA, and future EU, emission requirements. Volvo Penta Next Generation gasoline engines are five times cleaner than outboards at a similar horsepower.

NMMA CSI Award Winner  For 15 years in a row


NMMA CSI Award Winner For 15 years in a row

That's boaters telling us we're doing it right!




Engine packages registered in North America receive five years of warranty coverage. For international packages, during the first two years, the warranty covers the complete engine package and major components covered for an additional three years. Factory-backed. Factory-administered. No third parties involved.

Download the brochure and specsheet

The Power To Move You(PDF, 11.1 MB)
Contact a local dealer


Contact a local dealer