2021 Mercury FourStroke 300 HP - 20 in. Shaft
$25,235.00
Key Features
Availability
Brochure
Year2021
MakeMercury
ModelFourStroke 300 HP - 20 in. Shaft
Product Features
Description
Reliability, flexibility, power and efficiency – all within your reach. Backed by decades of marine power innovation and product leadership, Mercury V8 and V6 FourStroke outboards deliver legendary performance and forward-thinking technology. FourStroke outboards are built for any body of water and a wide variety of boats.
Intuitive, Innovative Features
- Adaptive Speed Control: Adaptive Speed Control maintains a desired rpm regardless of changes in load or conditions without adjustments to the throttle lever position – a first for the outboard industry.
- Smooth and Quiet: The V8 and V6 FourStroke engines are quieter and smoother than the leading competitor.
- Easy to Maintain: The exclusive Top Cowl Service Door simplifies routine maintenance, letting you check or add engine oil without removing the top cowl. An hour-based maintenance schedule decal is located under the cowl, providing a quick overview of routine maintenance.
- Industry-Exclusive Battery Management Technology: When battery voltage is low, engines will automatically increase idle rpm to boost alternator output and charge batteries to the proper level, protecting batteries from draining while trolling and operating electronic devices.
- Ample Charging Output: FourStroke models feature a robust alternator that delivers 20 amps net of charging power at idle and 30 amps total at wide-open throttle.
FourStroke Advantage
- Go Farther: Advanced Range Optimization by Mercury Marine uses closed-loop fuel control to precisely adjust the fuel mixture and deliver the best possible efficiency.
- Keep It Steady: Adaptive Speed Control maintains engine speed (rpm) regardless of load or condition changes – such as rough water, tight turns, tow sports and lower speeds on plane – without having to frequently adjust throttle position, a first for the outboard industry.
- Lighter by Design: Ounce by ounce, Mercury engineers cut pounds from the FourStroke outboards, ensuring each engine is the lightest in its respective class.
- Smart Charging: Idle Charge battery-management prevents boaters from draining their batteries while operating multiple electronic devices. When battery voltage is reduced, the engine will automatically increase idle rpm to boost alternator output and recharge low batteries to the proper level.
Specifications
- Horsepower: 300
- Full throttle RPM: 5200-6000
- Engine type: V8
- Displacement (CID/CC): 279 CID
- Displacement (L): 4.6L
- Cylinder Configuration: V-8 [64 degree] with Dual Overhead Cam [DOHC] and 32-valves
- Starting: Electric Start with SmartStart Protection
- Gearcase ratio: 1.75:1
- Alternator amp / Watt: 85-amp (1071 Watt) with Idle Charge
- Trim system: Power trim and tilt
- Dry weight *Lightest model available: 527 lbs / 239 kgs
- Steering options: Hydraulic (standard); Power (optional)
- Shaft length: 20" / 508 mm
NOTES:
Dry weight based on lightest model available.Engine
Engine Type | V8 |
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 |
Propshaft Horsepower | 300 HP |
Full Throttle Operating Range | 5200-6000 rpm |
Gear Ratio / Shift | 1.75:1 |
Alternator | 85-amp (1071 Watt) with Idle Charge |
Steering | Hydraulic (standard); Power (optional) |