• Mercury Racing 300R Phantom Black
  • Mercury Racing 300R Phantom Black
  • Mercury Racing 300R Phantom Black
  • Mercury Racing 300R Phantom Black
  • Mercury Racing 300R Phantom Black
  • Mercury Racing 300R Phantom Black
Videos

Mercury Racing 300R Phantom Black

Overview

FLEX SOME MUSCLE

Tuned up with Mercury Racing components to deliver blistering speed, the V8 4.6L 300R outboard delivers crisp throttle response, thrilling top-end power and confident control, the perfect match for a wide variety of high-performance boats. The 300R midsection and gearcase options, tie-bar and steering choices allow the creation of a near-custom configuration to provide optimal performance and ease of installation for most applications, including re-power upgrades.
Specifications
Model
300R
Category Name
Outboard Engines
Year
2024
Sale Type
New
Manufacturer
Mercury Racing
Color
Phantom Black
GEARCASE
Torque Master, Sport Master or 5.44 HD
RATED HP
300
STEERING
Electro-Hydraulic Power Steering
WARRANTY
3-Year²
CYLINDERS
V8
MIDSECTION
Standard, Heavy Duty or Racing AMS
ENGINE TYPE
V-8 NA 4S
FUEL SYSTEM
Electronic Fuel Injection (EFI) Computer Controlled With Advanced Range Optimization
DISPLACEMENT
4.6 L
OIL CAPACITY
6.6L
GEARCASE RATIO
1.85 (AMS), 1.75:1 (CMS) or 1.60:1 (CMS, AMS)
OIL REQUIREMENT
NMMA Certified FCW SAE 10W-30
INDUCTION SYSTEM
Custom Racing Short-Runner Intake Manifold
THROTTLE & SHIFT
DTS (AMS), DTS or Mechanical (CMS)
FUEL REQUIREMENTS
Unleaded Regular 87 Octane Minimum (R+M/2) Or 91 RON 10% Ethanol Maximum
FULL THROTTLE RPM
5800 6400
DRY WEIGHT (LB/KG)
512 LBS
SHAFT LENGTHS (INCH)
20, 25, or 30
ENGINE MANAGEMENT SYSTEM
SmartCraft PCM 112
ENGINE PROTECTION SYSTEM
SmartCraft Engine Guardian
INTEGRATED REAR TIE BAR BRACKET
Available
powerhead

Mercury Racing 300R Phantom Black

MIDSECTION OPTIONS

The Mercury Racing 300R outboard is offered with three midsection choices, each designed for specific performance applications.

Mercury Racing 300R Phantom Black

SHORT RUNNER INTAKE

To extract maximum performance, the Racing 300R is equipped with a Mercury Racing-designed short-runner intake, high-performance intake camshafts, an oil cooler and a performance-optimized ECU calibration that increases the WOT range to 6400 RPM.
gearcase

Mercury Racing 300R Phantom Black

GEARCASE OPTIONS

Three gearcase options are available for the 300R outboard, each design for a specific high-performance application.

Mercury Racing 300R Phantom Black

TIE-BAR OPTION

An optional rear tie-bar bracket integral to the Mercury Racing AMS provides a strong, ultra-light mounting point for precision steering in ultra-high-speed applications. Select HD CMS models are available with optional rear tie-bar mounting plates and side steering brackets for high speed applications when using the Sport Master gearcase.
tech

Mercury Racing 300R Phantom Black

DIGITAL THROTTLE & SHIFT (DTS)

The precision of Digital Throttle and Shift (DTS) with available Mercury Racing Digital Zero Effort controls eliminates cable maintenance and delivers smooth shifting with instant throttle response.

Mercury Racing 300R Phantom Black

ADAPTIVE SPEED CONTROL

Adaptive Speed Control maintains engine RPM as load changes due to sea conditions or turning maneuvers to maintain boat authority with less control input.

Mercury Racing 300R Phantom Black

SMARTCRAFT TECHNOLOGIES

The 500R model supports the full suite of Mercury SmartCraft technologies, including the Engine Guardian monitor system. Stream engine and performance data to a Mercury VesselView multi-function display or to many other multi-function displays.
literature
Name Link

MR_RseriesBrochure.pdf

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