Powerful. Versatile.
520
Big Power. Big Versatility. Big Durability.
At a full 520 horsepower, Mercury Racing’s 520 sterndrive opens the door to a family of expertly designed, hand-built performance engines. Don’t let the fact the 520 is the smallest engine in the Mercury Racing sterndrive offering fool you. The torque from even one of these engines is enough to sit you back in your seat.
Expertly
Designed
Specs
Facts & Figures
RATED HP AT TRANSOM
520
FULL THROTTLE RPM
4800-5200
DISPLACEMENT (L)
8.6L
COMPRESSION RATIO
8.7:1
|
PRODUCT DETAILS |
|
|---|---|
| Cylinders / Engine Configuration | V8 |
| Fuel Requirement | 87 Octane Minimum (R+M/2), (91 RON) Global |
| Fuel System | Sequential Fuel Injection |
| WARRANTY | 2-Year Limited For Recreational Boating |
| BORE & STROKE | 4.56 x 4.00 IN/115.8 x 101.6 MM |
| ALTERNATOR (AMP) | 65 AMP |
| CONTROLLER | PCM |
| DRIVE UNIT | Bravo One XR, Bravo One XR Sport, Bravo One XR Sport Master (Std. & Short), Bravo Three XR; (Integrated Transom System Optional) |
| LENGTH (IN) - FROM BACK OF BLOCK | 34.2 IN |
| WIDTH (IN) | 33.8 IN |
| HEIGHT (IN) | 24.2 IN |
| WEIGHT (LBS) | 1218 LBS |
Compatible Drives
Drives
Bravo One XR
Intended for single, twin and triple applications with engines up to600hp in boats capable of up to 85 mph top speed. The Bravo OneXR® is designed for high-performance applications, with dual water pickups, heavy-duty U-joints, a heavy-duty stainless steel prop shaft, billet aluminum bearing carrier, upgraded upper thrust bearings and net forged straight cut bevel gears for enhanced strength.
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Drives
Bravo One XR Sport Master
The surfacing Sport Master gearcase offers heavy-duty durability for boats that travel in excess of 85 mph, with four-slot low water pick-ups and a crescent leading-edge design that reduces drag as much as possible to maximize efficiency and speed. The one-piece gearcase housing and skeg are precision CNC machined for perfect symmetry that results in improved handling at higher speeds.
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Bravo One XR Sport Master Short
The same super hydrodynamic design as the Sport Master, with a two-inch shorter length. This permits lowering the transom X dimension by two inches, and mounting the engine two inches lower in the boat, while maintaining an optimal propeller position. Gain engine hatch clearance and lower overall center of gravity for improved handling.
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Drives
Bravo Three XR
The ideal drive option for Mercury Racing 520 engines in heavier cruiser boats. Heavy-duty components plus dual contra-rotating propellers provide added blade area to help lift a heavy boat out of the hole. The Mercury Racing Bravo Three XR® prop sets feature added cup to combat cavitation in higher horsepower applications. A large-diameter four-blade forward propeller followed by a smaller diameter three-blade aft propeller offer incredible handling, improved fuel economy at cruise speed, and improved boat control around the dock.
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Parts & accessories
Joystick Piloting
Eliminate the stress of positioning or maneuvering a performance boat in tight spaces during less-than-ideal situations. Focus instead on the total confidence of being effortlessly, intuitively, and completely in control of your boat. Mercury Joystick Piloting for Outboards combines throttle, shift and steering control in a single joystick designed for maximum maneuverability at lower speeds. It’s part of the complete SmartCraft package, which includes Digital Throttle & Shift, Skyhook digital anchor, integrated AutoPilot and VesselView® displays.
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Parts & accessories
Digital Zero Effort Controls
Digital Zero Effort Controls replace the lag and hesitation of traditional throttle and shift cables with digital precision, resulting in smooth shifting and instant throttle response. Ergonomic design features short-throw levers for effortless shifting and ultra-fast throttle response, and the robust stainless-steel levers offer unmatched durability in the offshore environment. Digital Zero Effort Controls can provide automatic throttle synchronization and shadow mode for up to six engines (where two levers operate six engines) and go hand in hand with engines equipped with Mercury’s exclusive Joystick Piloting for Outboards (JPO) technology.
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X-hAust sound Tuning
Mercury Racing's exclusive X-Haust Noise Reducer features a fully integrated sterndrive exhaust noise reduction system. X-haust was developed primarily to bring the HP600 SCi and EU662 SCi sterndrive engine packages, already certified by the European Union Recreational Craft Directive (RCD) requirements for exhaust emissions, in compliance with the stringent RCD noise regulations.
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Parts & Accessories
INTEGRATED TRANSOM SYSTEM (ITS)
The Integrated Transom System (ITS), developed for use with Bravo sterndrives, features integral power steering cylinders, making the transom more aesthetically pleasing and simplifying installation.
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- 500R
- 400R
- 300R
- 250R
- 200R
- 150R
- 60R View R-Series
Experience the future of luxury from the most advanced high-performance outboard on the water.
Rise above with the 400R – where extraordinary power meets exceptional drivability.
A fusion of breathtaking speed and control, the 300R is pure adrenaline-pumping freedom.
The stunning 250R elevates high performance on single-engine bass and sport boats.
Sophisticated power and digital controls for an exceptionally comfortable high-speed experience.
A lightweight, exhilarating power plant for those who test the limits in midsized high-performance boats.
Unleash your potential with the 60R, crafted for serious flats anglers who demand the best.
- Dual Cal 1550/1350
- Dual Cal 1350/1100
- 1100
- 700 SCI
- 600 SCI
- 565
- 520 View Sterndrives
Unshakeable strength. Unbelievable speeds. Our most powerful sterndrive engine outmuscles all challengers.
Two selectable performance calibrations ensure you maximize your thrills based on available fuel.
With heart-pumping power and monumental torque, the 1100 delivers a purely exhilarating experience.
A compact, rugged, supercharged performance machine – the absolute formula for power.
With legendary drive, the 600 SCi shines on high-performance, single-engine boats.
A flawless blend of big-block power and effortless digital control that never fails to impress.
Hand-crafted with precision, this compact powerhouse cranks out 520hp of back-in-your-seat performance.
- ROS
- APX
- Sterndrive
On the challenging waters of offshore powerboat racing, nothing can match the strength of the ROS series.
APX engines dominate closed-course powerboat competition with the most advanced four-stroke racing technology.
When the only option is winning, offshore racers turn to Mercury Racing sterndrive competition engines.
- Profile
- Precision
- Cases & Covers
- Prop Hub Kits
Profile Series props are cast to your specs then expertly tuned and hand-balanced by experienced craftsmen.
Precision Series props are sculpted to perfection using 5-axis CNC technology.
The finest art deserves the best protection, and your Mercury Racing prop is no different.
From engine-specific to rugged, high-speed options, Mercury Racing hubs unlock absolute performance.
- Digital Zero Effort Controls
- Joystick Piloting
- Performance Active Trim
- Integrated Transom System
- X-Haust Noise Reducer
- K-Plane Trim Tabs
- DTS Perfomance Pedal
Experience total command from premium digital controls designed for smooth, drive-by-wire precision.
Dock and maneuver with ease thanks to precision-guided 360-degree handling.
Digitally controlled trim automatically adjusts to ensure the most efficient, smooth ride.
Made for Bravo One XR® sterndrives, with integral power steering cylinders for a clean, pleasing connection.
Bring your high-performance sterndrive in compliance with regional noise regulations.
K-Plane® trim tabs maintain instantly responsive performance under the most punishing conditions.
A new throttle input sensor is roughly 20% the size of the outgoing pedal’s sensor, reducing packaging space and simplifying mounting in tight cockpits.
- Racing Lubricants
Run at the redline with premium lubricants formulated to protect high-intensity engines regularly pushed to extremes.
In a world that sets limits, Mercury Racing sets you free. We craft the most advanced high-performance marine propulsion systems on the water, empowering you to live life at the extreme.
It began with an unquenchable desire to win. With roots in performance boat racing, we’ve spent more than five decades perfecting the art of speed while redefining what’s possible on the water.
Whether you want technical advice to unlock a new level of speed or you need routine service, Mercury Racing stands behind you with expertise and support.
The QC4 Factory Refresh Program is a chance to turn back the clock by having the same team of master technicians who originally built your engine restore it to factory-fresh condition.
- R-Series Outboard
- Sterndrive
- Competition
- 500R
- 400R
- 300R
- 250R
- 200R
- 150R
- 60R
- Dual Cal 1550/1350
- Dual Cal 1350/1100
- 1100
- 700 SCI
- 600 SCI
- 565
- 520
- ROS
- APX
- Sterndrive
- Propellers
- Controls & Rigging
- Oils & Lubes
- Profile Series
- Precision Series
- Cases & Covers
- Prop Hub Kits
- Digital Zero Effort Controls
- Joystick Piloting
- Performance Active Trim
- Integrated Transom System
- X-Haust Noise Reducer
- K-Plane Trim Tabs
- DTS Performance Pedal
- Racing Lubricants
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Events
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