2019 Mercury SeaPro™ V-8 300 CMS - 20 in. Shaft

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Availability
Brochure
Year
2019
Manufacturer
Mercury
Model
SeaPro™ V-8 300 CMS - 20 in. Shaft

Overview

Description

SeaPro - more power for the job



The new Mercury V-8 and V-6 SeaPro outboard models bring more of everything to the job—more displacement, more power, more efficiency and more durability. The impressive muscle of our new V-8 4.6-liter and V-6 3.4-liter powerheads is specifically designed for commercial duty and delivers our best-ever fuel economy. The combination of ample torque and low weight makes these engines ideal for heavily-loaded boats. Guaranteed to do its job, so you can do yours.

Features
  • Advanced Range Optimization (ARO) and closed-loop fuel control work together to precisely adjust the fuel mixture for optimal fuel economy. For commercial fishing vessels, commercial workboats and law-enforcement boats.
  • The Mercury Edge: Corrosion Protection: Mercury offers superior corrosion protection versus the competition, delivering unequaled corrosion-fighting durability featuring the industry's lowest-copper aluminum alloy. Extend the life of critical components with more stainless steel than the competition.
  • SeaPro engines power boaters in harsh conditions: TowBoatUS and commercial boat builders are turning to Mercury Marine’s SeaPro engines because they are engineered to deliver longer engine life while maintaining the power and performance necessary to get the job done.
Specifications
  • HP / kW: 300/224
  • 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: 4800-5600
  • 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 25W-40 (Optional 10W-30 for Cold Conditions)
  • 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: Hydraulic (standard); Power (optional)
  • Shaft length: 20" / 508 mm
  • Gearcase ratio: 1.75:1
  • Dry weight *Lightest model available: 527 lbs / 239 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: 5.44"
  • Trim system: Power trim and tilt
  • Exhaust system: Through prop
  • Counter Rotation: Available
  • 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°)
NOTES:
Dry Weight based on lightest model available.

Specs

Engine

Engine Type
V-8
Bore x Stroke
3.6 in. x 3.4 in. (92 mm x 86 mm)
Displacement
4.6L
Starting
Electric Start with SmartStart Protection

Dimensions

Shaft Length
20 in. (508 mm)
Weight
527 lb. (239 kg)

General

Trim Method
Power trim and tilt
Shaft Rotation
Counter Rotation available
Propshaft Horsepower
300 hp (224 kW)
Full Throttle Operating Range
4800-5600 rpm
Gear Ratio / Shift
1.75:1
Fuel Induction
Electronic Fuel Injection (EFI) Computer Controlled with Advanced Range Optimization
Alternator
85-amp (1071 Watt) with Idle Charge
Cooling
Water-cooled with thermostat
Steering
Hydraulic (standard); Power (optional)

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