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The 300R FourStroke is the highest performing engine in its class. The naturally aspirated 4.6L V-8 provides an astounding 44% in increased displacement and up to 40% higher overall bottom end torque than the legacy two-stroke 300XS it replaces. Custom Racing intake cam profiles and short intake manifold runners maximise power throughout the rated speed range. An integrated oil cooler keeps oil temps down throughout the Racing exclusive 5800-6400 rpm operating range. Transient spark calibration boosts torque by 7% for unmatched acceleration. Advanced Range Optimisation (ARO) automatically adjusts fuel delivery for up to 10% improvement in cruise-speed fuel efficiency. All of this on regular 91-RON Unleaded fuel.

Spesification

  • RATED HORSEPOWER (HP/KW) 300/224
  • BORE & STROKE (IN/MM) 3.6 X 3.4/92 x 86
  • IDLE RPM 600
  • MAX RPM AT FULL THROTTLE 5800-6400
  • CYLINDERS/ENGINE CONFIGURATION V-8 (64 degree) with 32-valve Dual Overhead Cam (DOHC)
  • DISPLACEMENT (LITER/CID) 4.6/279
  • INDUCTION SYSTEM Custom Racing Short-Runner Intake Manifold
  • FUEL SYSTEM Electronic Fuel Injection (EFI) Computer Controlled with Advanced Range Optimization
  • FUEL REQUIREMENTS Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
  • IGNITION SYSTEM SmartCraft PCM 112 Digital Inductive
  • CHARGING SYSTEM 85-amp (1071 Watt) with idle Charge
  • STARTING Electric Start with SmartStart Protection
  • LUBRICATION SYSTEM Integrated wet sump
  • OIL REQUIREMENT NMMA Certified FCW SAE 10W-30
  • THROTTLE AND SHIFT CONTROLS Mechanical and Digital Throttle and Shift (DTS)
  • TRI-RAM MIDSECTION High-Durometer Elastomer Upper Mount and Solid Lower Mounts
  • HEAVY DUTY MIDSECTION Solid Mounts; Remote Trim System
  • GEARCASE Torque Master, Sport Master or 5.44" HD
  • GEAR RATIO 1.75:1
  • CAMBERED SKEG Sport Master and Torque Master
  • GEAR SHIFT F-N-R
  • DRY WEIGHT (LBS./KG)
  • L - 20" Std: 512/232; HD: 546/247
  • XL - 25" 556/252
  • XXL - 30" 566/257
  • WARRANTY 3-Year Warranty

POA
0.00 Feet
2025

The 250R FourStroke pumps out 250 propshaft horsepower. The stout V-8 powerhead provides an astounding 53% increased displacement and up to 40% higher overall bottom-end torque than the legacy two-stroke 250XS it replaces. Transient spark calibration boosts torque by 7% for unmatched acceleration. Advanced Range Optimisation (ARO) automatically adjusts fuel delivery for up to 10% improvement in cruise-speed fuel efficiency. All of this on regular 91-RON Unleaded fuel, while maintaining a comparable weight to the 250 XS.

Spesifications

  • RATED HORSEPOWER (HP/KW) 250/186
  • BORE & STROKE (IN/MM) 3.6 x 3.4/92 x 86
  • IDLE RPM 600
  • MAX RPM AT FULL THROTTLE 5800-6200
  • CYLINDERS/ENGINE CONFIGURATION V-8 (64 degree) with 32-valve Dual Overhead Cam (DOHC)
  • DISPLACEMENT (LITER/CID) 4.6/279
  • INDUCTION SYSTEM Performance-Tuned Long Runner Intake Manifold
  • FUEL SYSTEM Electronic Fuel Injection (EFI) Computer Controlled with Advanced Range Optimization
  • FUEL REQUIREMENTS Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON
  • IGNITION SYSTEM SmartCraft PCM 112 Digital Inductive
  • CHARGING SYSTEM 85-amp (1071 Watt)
  • STARTING Electric Start with SmartStart Protection
  • LUBRICATION SYSTEM Integrated wet sump
  • OIL REQUIREMENT NMMA Certified FCW SAE 10W-30
  • THROTTLE AND SHIFT CONTROLS Mechanical
  • MIDSECTION DESIGN Tri-Ram Midsection with High-Durometer Elastomer Upper Mount and Solid Lower Mounts
  • SHAFT LENGTH (IN./MM.) 20/508
  • GEARCASE Sport Master
  • GEAR RATIO 1.75:1
  • WEIGHT (LBS./KGS.) 520/236
  • WARRANTY 3-Year Limited

POA
0.00 Feet
2025

The 225hp Pro XS provides hard-charging performance to put you out front and keep you there. Pro XS is the choice of tournament anglers and performance enthusiasts who don't like coming second. Mercury V-8 Pro XS models transform every drop of fuel into performance delivering class leading fuel economy at cruising speed and wide-open throttle. Advanced Range Optimisation (ARO) utilises closed-loop fuel control to precisely adjust the fuel mixture and deliver the best possible efficiency. All Pro XS FourStroke models now come with a 3+3=6 Year factory warranty.

ENGINE DETAILS

More power. Less fuel consumed. Fewer emissions. Great for bass and multi-species fishing boats.

SPECIFICATIONS - 225

HP / kW
  • 225 / 168
Engine type
  • V-8
MidSection
  • Conventional MidSection
Displacement (CID/CC)
  • 279 CID
Displacement (L)
  • 4.6L
Cylinder Configuration
  • V-8 [64 degree] with Dual Overhead Cam [DOHC] and 32-valves
Full throttle RPM
  • 5600-6200
Air induction
  • Performance-Tuned Long-Runner Intake Manifold
Fuel induction system
  • Electronic Fuel Injection (EFI) Computer Controlled with Advanced Range Optimization
Alternator amp / Watt
  • 85-amp (1071 Watt) with Idle Charge
Recommended fuel
  • Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
Recommended oil
  • NMMA Certified FCW SAE 10W-30
Engine protection operator warning system
  • SmartCraft Engine Guardian
Compatible with SmartCraft digital technology
  • Yes
Starting
  • Electric Start with SmartStart Protection
Controls
  • Remote Mechanical or Digital Throttle & Shift (DTS)
Steering
  • Big Tiller (optional)
  • Hydraulic (standard)
  • Power (optional)
Shaft length
  • 20" / 508 mm
  • 25" / 635 mm
Gearcase ratio
  • 1.75:1
Dry weight *Lightest model available
  • 505 lbs / 229 kgs
CARB star rating
  • 3
Bore and stroke
  • 3.6 in x 3.4 in / 92 mm x 86 mm
Ignition
  • SmartCraft PCM 112 Digital Inductive
Cooling system
  • Water-cooled with thermostat
Gear shift
  • F-N-R
Gearcase options
  • 20": TorqueMaster
  • 25": 5.44"
Trim system
  • Power trim and tilt
Exhaust system
  • Through prop
Color
  • Phantom Black
Lubrication system
  • Integrated wet sump
Oil Capacity
  • 7.0 Quarts / 6.6 Liters
Maximum Trim Range
  • 20° (-6° to 14°)
Maximum Tilt Range
  • 73° (-6° to 67°)
   
   

POA
0.00 Feet
2025