Quick answer: The MAN i6X is a new marine engine that extends MAN’s proven inline-six platform into higher performance ranges — up to 1,000 hp (735 kW) from a compact 12.4-liter engine, in 900 and 1,000 hp variants. Built on the established MAN D2676 platform behind the current i6 (730/800/850 hp), it uses a newly developed single-stage turbocharging concept for strong low-speed torque and keeps nearly the same dimensions as today’s i6 for easy integration. It meets IMO Tier II, EPA Tier III, and RCD 2013/53/EU, debuts in the Americas at the Fort Lauderdale International Boat Show 2026, and enters series production in Q1 2028.
MAN Engines has introduced the MAN i6X marine engine, the next step in its inline-six platform for yachts and sport fishing boats. For South Florida owners already running MAN power — or considering it — the i6X is worth understanding now, because it debuts right here at the Fort Lauderdale International Boat Show before series production begins in 2028. Here’s what it is, how it fits the existing lineup, and what it means for owners in our market.
What Is the MAN i6X?
The MAN i6X is a next-generation inline six-cylinder marine engine delivering up to 1,000 hp (735 kW) from 12.4 liters of displacement. It’s built on the established MAN D2676 platform — the same proven foundation behind the current MAN I6 marine diesel engine that has been in service since 2015 (as a workboat engine) and in recreational marine use as the i6. The i6X shares many components with today’s i6 family, so it builds on a mature, field-proven base rather than starting from scratch — a point that matters for reliability and serviceability.
It will be offered in two variants — 900 hp (662 kW) and 1,000 hp (735 kW) — extending the current MAN i6 lineup of 730, 800, and 850 hp into a higher performance tier. Crucially, the i6X keeps nearly identical dimensions and customer interfaces to the existing i6, which means it can drop into existing vessel designs with minimal integration effort.
The Single-Stage Turbocharging Concept
The defining feature of the i6X is a newly developed single-stage turbocharging concept. Many engines in this power class reach their targets with multi-stage turbo systems; the i6X hits 1,000 hp with a single turbocharger. The benefit for owners and builders is meaningful: reduced complexity, less weight, and simpler installation, while still delivering highly responsive performance.
That responsiveness shows up where it matters most on the water. The i6X makes up to 3,250 Nm of torque available low in the operating range — between roughly 1,200 and 2,100 rpm — which translates to strong acceleration and confident maneuvering, especially at lower speeds. For sport fishing and yacht handling, immediate propulsion response when you need it is often more valuable than peak numbers alone.
How the i6X Fits the MAN Marine Lineup
The i6X doesn’t replace the current i6 — it sits above it. The existing MAN I6 marine diesel engine family (730/800/850 hp) continues, and for higher-output applications MAN owners have historically stepped up to the V8 or MAN V12 marine diesel engine. The i6X gives builders and owners a new option: V-engine-level output from a compact inline-six package. With a power-to-weight ratio of 0.8 hp/kg, MAN positions it as a new benchmark in its class for owners who want more power without giving up onboard space.
It also meets the emissions requirements that matter for international cruising — IMO Tier II, EPA Tier III, and EU Recreational Craft Directive 2013/53/EU — so it’s built for owners who run beyond South Florida into the Bahamas, the Caribbean, and further.
When Can You Get One?
The MAN i6X makes its world premiere at the Cannes Yachting Festival in September 2026, followed by its Americas debut at the Fort Lauderdale International Boat Show 2026, where it will be shown at the MAN Engines booth. Series production is scheduled to begin in the first quarter of 2028. In other words, this is an engine to plan around rather than order today — but for owners considering a new build or a repower in the next couple of years, it’s worth having on your radar now.
What This Means for South Florida Owners
As an authorized MAN marine engine dealer in South Florida, Scarano Marine will be positioned to sell, install, and service the i6X as it becomes available — the same factory-certified standard we bring to the current MAN lineup. If you’re weighing a repower or a new build and want to understand whether the i6X, the current i6, or a larger MAN engine is the right fit, that’s exactly the kind of conversation we have with owners every week. And because the i6X shares so much with the proven i6 platform, the MAN engine warranty and service practices owners already know carry forward.
Frequently Asked Questions
What is the MAN i6X marine engine?
The MAN i6X is a next-generation inline six-cylinder marine engine producing up to 1,000 hp (735 kW) from a compact 12.4-liter displacement. Built on the proven MAN D2676 platform behind the current i6, it uses a single-stage turbocharging concept and is aimed at yachts and sport fishing boats.
How much horsepower does the MAN i6X have?
The MAN i6X will be available in two variants: 900 hp (662 kW) and 1,000 hp (735 kW). These extend the current MAN i6 lineup, which offers 730, 800, and 850 hp.
When will the MAN i6X be available?
The MAN i6X makes its Americas debut at the Fort Lauderdale International Boat Show 2026, and series production is scheduled to begin in the first quarter of 2028. It’s an engine to plan around for upcoming builds and repowers rather than one you can order today.
Is the MAN i6X based on the current MAN i6?
Yes. The i6X is built on the same established MAN D2676 platform as the current i6 and shares many components with the existing i6 family. It extends that proven platform into a higher performance range rather than being an all-new design, which supports its reliability and serviceability.
Talk to Your South Florida MAN Dealer
Whether you’re planning a repower, speccing a new build, or just want to understand how the MAN i6X compares to the current MAN lineup for your vessel, Scarano Marine can help. As a factory-certified MAN dealer, we’ll keep our customers informed as the i6X moves toward availability. Contact us to talk through the right MAN engine for your boat.
Disclaimer: This article is provided for general informational purposes only and does not constitute professional marine engineering advice. Engine specifications are sourced from MAN Engines published materials for the MAN i6X and are subject to change by the manufacturer; availability dates are as announced by MAN and may change. Scarano Marine Inc. accepts no liability for damages arising from reliance on this content. | Full disclaimer