Refined Performance

The new R-Series Outboards catalog features detailed information on our 250R, 300R and 400R outboards, propellers and accessories.

The Mercury Racing R-Series line of consumer performance outboards is simply amazing. From bass boats to flats boats, to bay boats and multi-species hulls, to performance catamarans and vee-bottoms, to center consoles and even pontoons the R-Series offers a wide array of models to fit virtually any high-performance application.

 No Replacement for Displacement

The proprietary V8 architecture is enhanced by our Quad Cam Four Valve (QC4) design with double over-head camshafts and aluminum cylinder heads that maximize airflow and power.

Every ounce of our naturally aspirated V8 4.6L FourStroke engines is devoted to wide-open exhilaration. And while 4.6 Liters is a massive amount of displacement, power density is a key to high performance, and no marine engine delivers more punch in a lighter package than our 250R and 300R FourStrokes.

Mercury Transient Spark Technology applies pre-programmed timing advance to optimize torque output for stronger hole-shot performance.

The proprietary V8 architecture is enhanced by our Quad Cam Four Valve (QC4) design with double over-head camshafts and aluminum cylinder heads that maximize airflow and power. Mercury Transient Spark Technology applies pre-programmed timing advance to optimize torque output for stronger hole-shot performance.

 Low Cost of Ownership

To squeeze more power from less fuel, the V8 FourStrokes feature Advanced Range Optimization (ARO), a closed-loop fuel-control system that utilizes electronic sensors to precisely adjust the fuel mixture for the best-possible efficiency at all speeds.

Our naturally aspirated V8 outboards run on 87-octane pump fuel. This provides a lower operating cost and the peace of mind that comes from knowing you will be able to find fuel anywhere you go. To squeeze more power from less fuel, the V8 FourStrokes feature Advanced Range Optimization (ARO), a closed-loop fuel-control system that utilizes electronic sensors to precisely adjust the fuel mixture for the best-possible efficiency at all speeds. The Quad Cam Four Valve (QC4) valve train is maintenance-free for the life of the engine.

Supercharged Superstar

The inherently balanced inline six-cylinder arrangement offers smooth operation and a slim profile on the transom, so it’s perfect for multi engine installations.

The 400R shook up the high-performance outboard world when it was introduced in 2015 and the legend has been growing ever since. This brilliant Verado design launched an outboard performance revolution, and it has become by far the most popular outboard Mercury Racing has ever produced.

The inherently balanced inline six-cylinder arrangement offers smooth operation and a slim profile on the transom, so it’s perfect for multi engine installations. Supercharged induction delivers immediate response and astonishing power, yet it’s thoroughly refined for rock-solid reliability and effortless efficiency.

Don’t Knock It

The 400R requires 91-octane fuel for peak power, but a sophisticated knock sensor system permits the use of 89-octane fuel with only a slight reduction in performance. So you can still boat in areas where 91-octane fuel is unavailable or is unreliable – without giving up any meaningful amount of power, and without damage to your engine.

Race-Inspired Design

All R-Series Outboards feature stiff mounts which function akin to a sports car suspension – enhancing high-speed handling and drivability.

High-performance midsections and gearcases differentiate R-Series outboards from the typical consumer engine. All models feature stiff mounts which function akin to a sports car suspension – enhancing high-speed handling and drivability.

Gearcase Options

All R-Series outboards are available with Mercury Racing’s exclusive Sport Master gearcase.

The Sport Master gearcase comes standard on the 250R outboard and is available on selected 300R and 400R models as well.

The surface-piercing gearcase – designed for boats capable of speeds well over 85 mph – features low-water pickups to ensure a steady flow of cooling water, and a crescent leading edge to maximize efficiency and speed. The available cambered skeg counteracts prop torque on single-engine installations for improved performance and handling.

The Torque Master gearcase, available on the 300R, is designed to run partially surfaced to carry heavier tournament bass and multi-species fishing boats with maximum speed and control.

The 5.44-inch HD gearcase, available on select 300R and 400R models, comes equipped with a robust gear set for ultimate durability when pushing heavy bay boats and multi-engine performance center console boats that require a more submerged gearcase.

Mercury Racing Propellers

The CNC Outboard Cleaver propeller is popular for selected 300R and 400R Sport Master applications.

Simply stated, Mercury Racing Propellers are the gold standard in high-performance props, and they’re the perfect match for R-Series outboards.

Cast from proprietary stainless-steel alloys, then hand finished and zero balanced by artisan technicians in our prop shop, Mercury Racing Propellers offer the ultimate in performance and durability.

Choose the precision-tuned performance of a Mercury Racing Pro Finish model or the race-spec perfection of a Mercury Racing Lab Finish® propeller to ensure that every bit of that R-Series power gets to the water.

Unprecedented Warranty

Mercury Racing R-Series consumer performance outboards are tested, tested and tested again – in the lab and on the water – in a never-ending quest to exceed the highest expectations of even the most demanding and discerning boater. Run wide open with confidence backed by a three-year limited factory warranty.

Extend that coverage for up to five more years with a Mercury Product Protection (MPP) factory-backed extended service plan, and you’ll still be leaving others in your wake – and still covered – long after many other so-called high-performance engines have gone to the scrapyard.

Visit our website to learn more about our R-Series consumer performance outboards.

 

 

 

 

 

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4 thoughts on “Refined Performance”

  1. Is there any benefit running higher octane in the 300R? Also when running in hot weather and at sea level will higher octane be hepful?

    1. David,

      Higher octane will not benefit the 300R, it is tuned to run on 87 octane and up to 10% ethanol.

      Nick

  2. So i love the new ” R” engines, When is the new midrange “R” coming? I have the Formula race 60, but would love if you put the new tech into a midrange race engine!

    1. Thanks for the compliment, Kyle. The 60 EFI FormulaRace is a great engine. We are always working on making improvements to our products.

      Rick

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