FourStroke 300 Mercury Outboard

These robust motors deliver Mercury’s best-ever FourStroke hole shot, top speed and fuel efficiency. Great for aluminum fishing, deck, inflatable rigid hull, inshore fishing, offshore fishing and runabouts and tritoons.

SPECIFICATIONS - 300

HP / kW	300 / 224
Engine type	V8
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	5200-6000
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	Hydraulic (standard) Power (optional)
Shaft length	20" / 508 mm 25" / 635 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	Cold Fusion White Pearl Fusion White Phantom Black Warm Fusion White
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°)

Product variants

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Mercury Marine FAQs

Is Marine Works an Authorised Dealer for Mercury Marine?

Absolutely.

What Warranty does Mercury Marine offer?

Mercury offers a 3+3 warranty -see all the detail here.

Can you install my engine and provide after-sale servicing & repairs?

Absolutely.

We are a Mercury Premier Service Centre.