Mercury SeaPro 300XL DTS Outboard Engine

The Mercury SeaPro 300XL DTS Outboard Engine for sale is engineered to thrive in harsh marine environments and deliver commercial-grade power with refined performance. Featuring a robust 4.6-liter V8 powerhead, this high-output outboard delivers instant throttle response, blistering top-end speed, and unmatched durability, making it the ideal choice for offshore applications, commercial vessels, and high-performance recreational boats.

Thanks to Mercury’s Advanced MidSection (AMS) and cutting-edge under-cowl sound management, the SeaPro 300XL DTS offers exceptionally smooth and quiet operation, even under heavy loads. Despite its rugged power, this motor runs clean, cool, and quiet—making long hours on the water more comfortable and productive.

Whether you’re operating inshore or offshore, fishing or transporting, the SeaPro 300HP DTS outboard is ready to deliver unwavering reliability, massive torque, and professional-level performance—all wrapped in Mercury’s signature bold styling. Buy Mercury SeaPro 300XL DTS Online

What’s Included

• Mercury SeaPro 300XL DTS V8 Outboard Engine

• Power Trim & Tilt

• Mounting Hardware

• Service Tool Kit & Parts

• Owner’s Manual

• Propeller Included

Key Features

• 4.6L V8 Powerhead – Delivers powerful acceleration and higher top speeds with improved fuel economy.

• Advanced MidSection (AMS) – Minimizes vibration and reduces noise for a smoother ride.

• Smart Start Electric Ignition – Push-button convenience with reliable starts every time.

• Digital Throttle & Shift (DTS) – Effortless shifting with smooth, precise throttle response.

• Adaptive Speed Control – Maintains engine RPM through changing water conditions without throttle adjustments.

• Heavy-Duty Gearcase – Nearly 3X the lifespan of recreational gearcases—ideal for commercial use.

• Idle Charge System – 85-amp alternator keeps electronics powered even at trolling speeds.

• Saltwater-Ready Durability – Corrosion-resistant design and components for long-term protection.

Mercury SeaPro 300XL DTS Specifications

• Engine Type: Mercury 300XL SeaPro DTS V8 4-Stroke

• Horsepower: 300 HP

• Cylinders: V-8

• Displacement: 4.6 L

• Fuel System: Electronic Fuel Injection (EFI)

• Fuel Induction: 32-valve, DOHC

• Starting System: Smart Start Electric

• Steering: Digital Throttle & Shift

• Shaft Length: 25″ X-Long

• Full Throttle Range: 5200 – 6000 RPM

• Alternator Output: 85 Amp / 1071 Watts with Idle Charge

• Weight: 527 lbs

• Trim Range: -6° to 14°

• Tilt Range: -6° to 67°

• Warranty: Mercury Marine 3-Year Warranty

Benefits

• Commercial-Grade Performance: Built tough for demanding jobs and high-hour usage.

• Quiet & Smooth Operation: Refined design keeps noise and vibration to a minimum.

• Fuel-Efficient Power: Run longer with less fuel, thanks to advanced EFI and engine management systems.

• Low Maintenance: Easy-access service points and drain systems simplify upkeep.

• Heavy-Duty Design: Withstands the demands of saltwater use and constant operation.

• Versatile Application: Ideal for commercial fishing boats, tritoons, offshore rigs, inflatables, deck boats, and more.

Frequently Asked Questions (FAQs)

Q: What type of boats is the Mercury 300HP SeaPro ideal for?
A: It’s great for offshore fishing boats, commercial vessels, deck boats, rigid inflatable boats, multi-species fishing boats, and performance tritoons.

Q: Is the 300HP SeaPro quiet despite its power?
A: Yes, it features Mercury’s Advanced MidSection (AMS) and internal sound-dampening to reduce noise and vibration significantly.

Q: Does it support digital throttle and shift?
A: Yes, the 300XL SeaPro comes with Digital Throttle & Shift (DTS) for smoother, more responsive control.

Q: Can I use this outboard in saltwater?
A: Absolutely. It’s engineered for saltwater durability with advanced corrosion resistance built-in.

Q: How does the alternator support electronics onboard?
A: The 85-amp alternator with Idle Charge provides steady power for multiple accessories, even at low RPM.