4.6-Litre V8 Power
The DOHC V8 delivers high torque and a strong power-to-weight ratio.
MERCURY FOURSTROKE
Mercury 300HP
Model 300XL
Delivers flagship four-stroke power for serious offshore use, fully installed and tested.
300HP · FourStroke
Fully fitted from
$47,999
NZD. Final fitted price depends on the boat, controls, steering and installation requirements.
300HP
POWER
4.6 L
DISPLACEMENT
238 kg
DRY WEIGHT*
635 mm
SHAFT LENGTH
6 Years
WARRANTY*
MERCURY WARRANTY
6 YEARS*
3+3 YEAR COVERAGEMore confidence on the water.
Eligible recreational Mercury outboards receive a three-year standard manufacturer warranty plus three additional years of bonus coverage when the required registration and scheduled servicing conditions are met.
View warranty terms *Terms, eligibility and servicing requirements apply. Commercial, SeaPro and Mercury Racing warranty coverage may differ.FEATURES AND BENEFITS
Flagship V8 power with refined everyday operation.
The naturally aspirated 4.6-litre V8 combines high torque, efficient packaging and modern electrical capacity.
Efficient Performance
Large displacement and an efficient gearcase support capable cruise performance.
Compact Installation
The V8 can mount on narrow 26-inch centres for single or multi-engine layouts.
Extensively Validated
Mercury developed and tested the platform for demanding recreational conditions.
Refined NVH
The architecture and mounting system minimise noise, vibration and harshness.
Simplified Maintenance
The top-cowl door, no-spill oil service and colour-coded points improve access.
TECHNICAL DETAILS
Full specifications
| HP / kW at prop | 300 / 224 |
|---|---|
| Max RPM (WOT) | 5200 - 6000 |
| Cylinders / Configuration | 64-degree V8, 32-valve DOHC |
| Displacement | 4.6 L |
| Bore x Stroke | 92 x 86 mm |
| Induction | Performance-tuned long-runner intake |
| Ignition | SmartCraft PCM 112 digital inductive |
| Fuel System | Computer-controlled EFI with Lean Burn |
| Alternator Amp/Watt | 85 amp / 1071 watt belt-driven |
| Midsection | Conventional Midsection (CMS) |
| Starting | Electric with SmartStart |
| Gearcase / Ratio | 138 mm / 1.75:1 |
| Gear Shift | F-N-R |
| Controls | Mechanical or DTS |
| Mounting Centres | 660 mm |
| Protection | SmartCraft Engine Guardian |
| Oil Capacity | 6.6 L |
| Fuel | 90 RON; up to 10% ethanol |
| Trim Range | 20° (-6° to 14°) |
| Tilt Range | 73° (-6° to 67°) |
| Shaft Length | 635 mm |
| Colours | Phantom Black and Fusion White options |
| Dry Weight | 238 kg |
BOAT MATCHING
Is the Mercury 300HP right for your boat?
Horsepower is only one part of choosing an outboard. Hull design, weight, transom height, steering, controls and intended use all affect the correct installation.
REPOWER WITH CONFIDENCE