FINANCING AVAILABLE
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Description
The Mercury 300XL is a 300hp four-stroke outboard with Digital Throttle & Shift (DTS), electric start, power trim and tilt, and a 25" extra long shaft, weighing 538 lbs. A good match for center consoles, dual consoles, offshore fishing boats, pontoons and other large boats, in single or multi-engine setups. As an authorized Mercury dealer, Boat Specialists sells it new with the full Mercury 3-year factory warranty, after our factory-qualified technicians test-run it.
Mercury's 4.6-liter V8 FourStrokes are built for strong performance, reliability and easy ownership. Large displacement delivers big torque for a fast holeshot and confident cruising across a wide range of boats.
Mercury 300XL Key Features
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.
REQUIRED FEE
$560 Dealer Engine Prep - Our factory-qualified technicians perform a full test run of your new outboard by unpacking it and connecting it to the rigging, fuel, battery, and a diagnostic computer. We run the motor up to operating temperature and test every function to make sure your new motor is working just as it should. The manufacturer's required inspection checklist is completed and submitted to the manufacturer to validate the warranty.
Mercury 300XL FAQ
What size boat is the Mercury 300XL for?
A good match for center consoles, dual consoles, offshore fishing boats, pontoons and other large boats, in single or multi-engine setups. Always check your boat's capacity plate for its maximum horsepower and weight.
Do I need a short or long shaft?
Measure your transom from the top edge straight down to the bottom of the hull: about 15" calls for a short shaft, 20" for a long shaft, 25" for an extra-long shaft, and 30" for an ultra-long shaft. The 300XL has a 25" extra long shaft. Not sure? Call or text us at (805) 644-6290 and we'll help you choose.
What comes with the 300XL?
Standard features and included items: power trim & tilt, service tool kit & parts, mounting hardware, and owner's manual. The propeller is not included.
What do I need to buy separately?
A propeller is sold separately, along with any controls, gauges or rigging your boat needs. We can help you pick the right parts, and our team can rig it for you.
What warranty does it come with?
It's covered by the full Mercury 3-year warranty. See our Brand Warranties page for details, and ask about extended warranties.
Do you offer financing?
Yes. Financing is available on new outboards. See our Financing page to learn more and apply online, or call or text (805) 644-6290.
Can you install and service it?
Yes. We service what we sell. Our certified technicians handle rigging, repowers and routine service at our Ventura parts and service center. Call or text (805) 644-6290, or book an appointment online.
Why Buy from Boat Specialists
- Family owned and operated since 1976
- Authorized Mercury outboard dealer
- We service what we sell, with certified technicians at our Ventura parts and service center
- We ship nationwide
- Showrooms in Ventura and Richmond, CA. Call or text (805) 644-6290, Monday to Friday, 9am to 5pm PT
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SPECIFICATIONS
Mercury 300XL Specifications
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- Engine Type: Mercury 300XL DTS V-8 Four Stroke
- Horsepower: 300hp
- Cylinders: V-8
- Shaft Length: 25" X-Long
- Steering: Digital Throttle & Shift
- Starting: Smart Start Electric
- Weight: 538 lbs
- Maximum Trim Range: 20° (-6° to 14°)
- Maximum Tilt Range: 73° (-6° to 67°)
- Alternator: 85 amp / 1,071 watt with Idle Charge
- Full Throttle Range: 5200 - 6000 rpm
- Displacement: 4.6 L
- Fuel System: Electronic Fuel Injection (EFI)
- Fuel Induction System: 32-valve, DOHC
- Warranty: Mercury Marine 3-Year Warranty
Mercury 300XL Standard Features
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- Power Trim & Tilt
- Service Tool Kit & Parts
- Mounting Hardware
- Owner's Manual
*Prop not included.
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- VIDEOS
The Mercury 300XL is a 300hp four-stroke outboard with Digital Throttle & Shift (DTS), electric start, power trim and tilt, and a 25" extra long shaft, weighing 538 lbs. A good match for center consoles, dual consoles, offshore fishing boats, pontoons and other large boats, in single or multi-engine setups. As an authorized Mercury dealer, Boat Specialists sells it new with the full Mercury 3-year factory warranty, after our factory-qualified technicians test-run it.
Mercury's 4.6-liter V8 FourStrokes are built for strong performance, reliability and easy ownership. Large displacement delivers big torque for a fast holeshot and confident cruising across a wide range of boats.
Mercury 300XL Key Features
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.
REQUIRED FEE
$560 Dealer Engine Prep - Our factory-qualified technicians perform a full test run of your new outboard by unpacking it and connecting it to the rigging, fuel, battery, and a diagnostic computer. We run the motor up to operating temperature and test every function to make sure your new motor is working just as it should. The manufacturer's required inspection checklist is completed and submitted to the manufacturer to validate the warranty.
Mercury 300XL FAQ
What size boat is the Mercury 300XL for?
A good match for center consoles, dual consoles, offshore fishing boats, pontoons and other large boats, in single or multi-engine setups. Always check your boat's capacity plate for its maximum horsepower and weight.
Do I need a short or long shaft?
Measure your transom from the top edge straight down to the bottom of the hull: about 15" calls for a short shaft, 20" for a long shaft, 25" for an extra-long shaft, and 30" for an ultra-long shaft. The 300XL has a 25" extra long shaft. Not sure? Call or text us at (805) 644-6290 and we'll help you choose.
What comes with the 300XL?
Standard features and included items: power trim & tilt, service tool kit & parts, mounting hardware, and owner's manual. The propeller is not included.
What do I need to buy separately?
A propeller is sold separately, along with any controls, gauges or rigging your boat needs. We can help you pick the right parts, and our team can rig it for you.
What warranty does it come with?
It's covered by the full Mercury 3-year warranty. See our Brand Warranties page for details, and ask about extended warranties.
Do you offer financing?
Yes. Financing is available on new outboards. See our Financing page to learn more and apply online, or call or text (805) 644-6290.
Can you install and service it?
Yes. We service what we sell. Our certified technicians handle rigging, repowers and routine service at our Ventura parts and service center. Call or text (805) 644-6290, or book an appointment online.
Why Buy from Boat Specialists
- Family owned and operated since 1976
- Authorized Mercury outboard dealer
- We service what we sell, with certified technicians at our Ventura parts and service center
- We ship nationwide
- Showrooms in Ventura and Richmond, CA. Call or text (805) 644-6290, Monday to Friday, 9am to 5pm PT
Mercury 300XL Specifications
-
- Engine Type: Mercury 300XL DTS V-8 Four Stroke
- Horsepower: 300hp
- Cylinders: V-8
- Shaft Length: 25" X-Long
- Steering: Digital Throttle & Shift
- Starting: Smart Start Electric
- Weight: 538 lbs
- Maximum Trim Range: 20° (-6° to 14°)
- Maximum Tilt Range: 73° (-6° to 67°)
- Alternator: 85 amp / 1,071 watt with Idle Charge
- Full Throttle Range: 5200 - 6000 rpm
- Displacement: 4.6 L
- Fuel System: Electronic Fuel Injection (EFI)
- Fuel Induction System: 32-valve, DOHC
- Warranty: Mercury Marine 3-Year Warranty
Mercury 300XL Standard Features
-
- Power Trim & Tilt
- Service Tool Kit & Parts
- Mounting Hardware
- Owner's Manual
*Prop not included.
