250R

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 Optimization automatically adjusts fuel delivery for up to 10% improvement in cruise-speed fuel efficiency. All of this on 87-octane (90 RON) pump fuel while maintaining a comparable weight to the 250 XS.

Best of all, the new 250R are backed by a three-year factory warranty.

Photo of 250R

MODEL DETAILS

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 Optimization automatically adjusts fuel delivery for up to 10% improvement in cruise-speed fuel efficiency. All of this on 87-octane (90 RON) pump fuel while maintaining a comparable weight to the 250 XS.

Best of all, the new 250R are backed by a three-year factory warranty.

Specifications

  • Rated Horsepower (HP/kW)
    250/186
  • Bore & Stroke (in/mm)
    3.6 x 3.4/92 x 86
  • Idle RPM
    600
FULL SPECS
CATALOG VIDEO
  • 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
HIDE SPECS CATALOG VIDEO

Mercury Racing Powers Wisconsin Water Ski Team to Guinness World Record

Rebirth of an American Icon

Sign up to receive the latest tips, promotions and news from mercury racing.

High Performance Marine Engines