MERCURY 300HP L FOUR STROKE OUTBOARD MOTOR FOR SALE

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$13,878.00

MERCURY 300HP L FOUR STROKE OUTBOARD MOTOR

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Description

Mercury 300HP L Four Stroke Outboard Motor – Power and Accuracy on the Water

In marine power, few brands are as well respected and reliable as Mercury Marine. For those who demand performance, reliability, and technology, the Mercury 300HP L Four Stroke Outboard Motor is a best-in-class choice. If you’re replacing your existing motor or outfitting a new boat, this motor is available for purchase today and is designed to deliver the power and fuel efficiency today’s boaters demand.

In this detailed guide, we will discuss everything that you need to know about the Mercury 300HP L Four Stroke—its specifications and performance characteristics to why it is the right investment for serious boating enthusiasts. And the answer is yes, we are selling it to you directly—we are here to provide you with the best outboard motors available.


Why Choose the Mercury 300HP L Four Stroke Outboard Motor?

1. Unparalleled Performance

Mercury 300HP L Four Stroke is designed to produce premium performance on a wide range of boats, from offshore sportfishing boats to cruisers. With 300 horses in a trim, durable package, the engine provides rapid acceleration, silky smooth cruising, and stunning top-end speed.

Whether in pursuit of gamefish or on a family boat ride on the lake, you will appreciate the union of raw power and high-tech engineering that is included in this outboard.

2. Quiet and Smooth Running

One of the biggest strengths of Mercury’s 300HP Four Stroke engine is its focus on reducing noise. It purrs along quietly, thanks to ground-breaking sound-dampening technology. That means you get to enjoy chats, tunes, or bird sounds without that constant background roar of an engine.

3. Fuel Efficiency

In spite of its phenomenal power, this outboard motor is remarkably fuel-efficient. Mercury engineers have balanced each component for optimum performance and economy. This not only decreases your boating expenses overall but also reduces environmental stress.

4. State-of-the-Art Technology

From the SmartCraft digital throttle and shift system to sophisticated diagnostics, this motor is teeming with features that make it easy to use and straightforward to control. With integrated control systems, you benefit from responsive handling and crisp control at any speed.


Mercury 300HP L Four Stroke Specifications

These technical specifications set it apart from other engines available in the market:

Feature Description
Engine Type 4-Stroke Inline 6-Cylinder
Displacement 2.6L (158.5 CID)
Horsepower 300 HP
Full Throttle RPM Range 5200-6000 RPM
Fuel Induction System EFI (Electronic Fuel Injection)
Alternator Output 85 amp (1071 watt)
Starting System Electric Start
Steering Integrated electro-hydraulic power steering
Gear Ratio 1.85:1
Dry Weight Approx. 600 lbs (dependent on shaft length)
Shaft Lengths Available 20″, 25″, 30″
Cooling System Water-cooled with thermostat & pressure-controlled
Exhaust System Through prop

Features That Make a Difference

Now let’s take a closer look at some of the premium features that make the Mercury 300HP L Four Stroke the marine industry game-changer.

Adaptive Speed Control

On-board engine RPM regardless of load or situation—perfect for trolling or moving through crowded harbors.

Digital Throttle & Shift (DTS)

A technology that provides smooth, instant throttle action free of the mechanical clunking found in typical mechanical controls. Shifting is seamless, providing a more enjoyable and simpler boating experience.

Advanced Range Optimization (ARO)

Mercury’s ARO system automatically adjusts fuel delivery for optimal efficiency at cruising speeds. You’ll get the most miles out of every gallon, perfect for long days on the water.

Corrosion Resistance

Saltwater can be brutal on engines. That’s why Mercury equips this motor with a superior corrosion protection system, including a freshwater flush system and durable coatings that withstand harsh marine environments.

Electronic Fuel Injection (EFI)

Offers trouble-free starting in all conditions, improved fuel economy, and smooth power across the entire RPM range.


Uses: Who is this engine for?

The Mercury 300HP L Four Stroke is ideal for:

  • Offshore fishing vessels

  • Dual-console cruisers

  • Pontoon boats

  • Center consoles

  • Bay boats

  • High-performance recreational vessels

Its versatility makes it the first choice among hard-core anglers and weekend warriors alike. Whether your boating style is active or passive, if you need proven, high-performance capability, this engine is engineered for you.


Why Buy from Us?

We’re not just here to share specs with you—we’re here to help you buy the Mercury 300HP L Four Stroke Outboard Motor with confidence. Here’s why we’re different:

Genuine Products
We only offer original Mercury outboards—directly from authorized distributors. No imitations, no used surprises.

Competitive Pricing
We offer some of the lowest prices online. If you’re on the hunt for a deal, call us—odds are we can beat your price.

Customer Support
Our marine engine experts will be glad to assist you with questions prior to and after your purchase. We’re here from start to finish—from choosing to installation support.

Fast Shipping
Need your engine in a hurry? We offer quick and reliable delivery to your door, so you never have to wait.

Warranty & Service
Each of our Mercury engines comes with full manufacturer’s warranties, and we can refer you to certified local installers and service centers.


Customer Reviews

“The Mercury 300HP Four Stroke is a beast. Quiet, powerful, and ridiculously efficient. Worth every penny.” – Mike D., Florida

“Upgraded my center console with this engine and I’m thrilled. It starts like a dream and runs smooth all day.” – Sarah T., Texas

“Great buying experience. The team helped me pick the right shaft length and shipped it fast. Highly recommended.” – Jeff L., California


Installation and Maintenance Tips

Installation

Although professional installation is recommended, Mercury provides comprehensive manuals and support. Make sure to match the shaft length to your transom height, and check that your steering and throttle systems are compatible.

Maintenance

Regular maintenance is key to keeping your Mercury 300HP L Four Stroke running at peak performance. Basic tasks include:

  • Oil changes every 100 hours

  • Impeller inspection annually

  • Spark plug replacement every 300 hours

  • Fuel filter changes

  • Software updates through SmartCraft system


Get Yours Today – Mercury 300HP L Four Stroke Outboard Motor for Sale

For the ultimate in boating performance, the Mercury 300HP L Four Stroke is your ticket. It’s fast, it’s intelligent, and it’s durable to withstand the test of time.

Don’t settle for less—buy the best Mercury outboard engine today and elevate your experience on the water to a whole new level. Whether you’re after a trophy fish or enjoying a cruise with the people you love, this engine lets you do it all.

Contact us today for prices, availability, and shipping.


FAQs

Q: Does the Mercury 300HP fit on older boats?
Yes, if you have the proper controls and steering mounting, this motor can be installed on most boat models. We can help you determine if it’s compatible.

Q: What type of fuel does it use?
It burns unleaded gasoline (min. 87 octane) and, through the assistance of EFI and ARO, saves it.

Q: Is it saltwater compatible?
Yes. It is designed with corrosion-resistant components and a freshwater flush system.

Q: Do you offer installation service?
Yes, we can introduce you to certified Mercury installers in your area.


Final Thoughts

The Mercury 300HP L Four Stroke Outboard Motor is not a motor—it’s a piece of performance, reliability, and peace-of-mind. With cutting-edge technology, superior efficiency, and uncompromising power, it’s all you’ll ever need in a marine motor.

✅ Available now for purchase
✅ Warranty-backed
✅ Delivered right to your doorstep

Don’t wait—buy your Mercury 300HP L Four Stroke Outboard Motor today and get back on the water with confidence.

 

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