• Slide: The Image of 2003 Grady-White Marlin 300 boat docked by the water on a sunny day. - 2The Image of 2003 Grady-White Marlin 300 boat docked by the water on a sunny day. - 2
  • Slide: The Image of 2003 Grady-White Marlin 300 boat deck with twin engines at dock. - 3The Image of 2003 Grady-White Marlin 300 boat deck with twin engines at dock. - 3
  • Slide: The Image of 2003 Grady-White Marlin 300 boat interior, featuring spacious deck and seating at marina. - 4The Image of 2003 Grady-White Marlin 300 boat interior, featuring spacious deck and seating at marina. - 4
  • Slide: The Image of 2003 Grady-White Marlin 300 boat interior with seating, docked by a scenic shoreline. - 5The Image of 2003 Grady-White Marlin 300 boat interior with seating, docked by a scenic shoreline. - 5
  • Slide: The Image of 2003 Grady-White Marlin 300 helm with Simrad navigation system and comfortable seating. - 6The Image of 2003 Grady-White Marlin 300 helm with Simrad navigation system and comfortable seating. - 6
  • Slide: The Image of 2003 Grady-White Marlin 300 cabin interior with kitchenette and seating area. - 7The Image of 2003 Grady-White Marlin 300 cabin interior with kitchenette and seating area. - 7
  • Slide: The Image of 2003 Grady-White Marlin 300 boat interior with kitchenette and seating area. - 8The Image of 2003 Grady-White Marlin 300 boat interior with kitchenette and seating area. - 8
  • Slide: The Image of 2003 Grady-White Marlin 300 cabin interior with TV and storage nets. - 9The Image of 2003 Grady-White Marlin 300 cabin interior with TV and storage nets. - 9
  • Slide: The Image of 2003 Grady-White Marlin 300 cabin interior with storage compartments and netted windows. - 10The Image of 2003 Grady-White Marlin 300 cabin interior with storage compartments and netted windows. - 10
  • Slide: The Image of Electrical panel on a 2003 Grady-White Marlin 300 boat, featuring AC and DC switches. - 11The Image of Electrical panel on a 2003 Grady-White Marlin 300 boat, featuring AC and DC switches. - 11
  • Slide: The Image of 2003 Grady-White Marlin 300 boat bathroom with sink, toilet, and storage compartments. - 12The Image of 2003 Grady-White Marlin 300 boat bathroom with sink, toilet, and storage compartments. - 12
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2003 Grady-White Marlin 300

$74,995

Used

Boat in Newport Beach, CA 92660 US

builtBuilt in 2003
Year the boat was built
model

Marlin 300

Boat model
engine

2 Engines (2x Yamaha)

Engine type and count
length

30.5 feet

Overall boat length
fuel

Gas

Fuel type
material

Fiberglass/Reinforced

Hull material

Grady-White 300 Marlin - Fully Equipped Offshore Machine + Transferable Newport Beach Slip

This Grady-White 300 Marlin is the perfect blend of offshore capability, comfort, and serious fishability. Powered by reliable twin Yamaha outboards, the 300 Marlin is known for its deep-V ride, wide beam stability, and legendary Grady build quality-making it one of the most proven express fishing platforms on the West Coast.

The cabin offers overnight accommodations for extended fishing trips or weekend cruising, while the spacious cockpit layout is built for serious anglers: huge fish boxes, livewell, wide walkarounds, and plenty of storage. Helm visibility is excellent, and the electronics package makes navigating coastal waters effortless. A bow thruster adds extra maneuverability-ideal for tight docking situations and the Newport Harbor environment.

Highlights:
• Transferable slip in Newport Beach, CA - prime location with very limited availability
• Twin Yamaha outboards known for reliability and strong performance
• Bow thruster for easy docking and tight maneuvering
• Grady-White's legendary hull design and top-tier construction
• Large cockpit with deep freeboard - excellent for offshore fishing
• Comfortable cabin with galley, enclosed head, and sleeping accommodations
• Wide beam for stability at drift and underway
• Ideal for Catalina runs, tuna trips, family cruising, and weekend getaways

Whether you're upgrading your sportfishing program or want a proven express boat that checks all the boxes, this 300 Marlin is turnkey and ready for its next owner.

Nominal Length
30.5ft
Length Overall
32.58ft
Beam
10.58ft
Max Bridge Clearance
9.75ft
Max Draft
1.58ft
Deadrise At Transom
20deg
Dry Weight
7000lb
Heads
1
Fresh Water Tanks
39gal
Fuel Tanks
306gal
Hull Material
fiberglass
Hull Shape
sea-v2
Engine 1
Engine Make
Yamaha
Total Power
250hp
Engine Hours
900
Engine Type
outboard-4s
Fuel Type
gasoline
Engine Year
2004
Propeller Type
3-blade
Propeller Material
stainless-steel
Engine 2
Engine Make
Yamaha
Total Power
250hp
Engine Hours
900
Engine Type
outboard-4s
Fuel Type
gasoline
Engine Year
2004
Propeller Type
3-blade
Propeller Material
stainless-steel
Bow Thruster
✓
Electric Bilge Pump
✓
Marine Head
✓
Battery Charger
✓
Depthsounder
✓
Radar
✓
Tv Set
✓
Plotter
✓
Dvd Player
✓
Autopilot
✓
Compass
✓
Gps
✓
Cockpit Speakers
✓
Vhf
✓
Shore Power Inlet
✓
Engine Notes

Horsepower listed is the maximum available for this rig. Other engine options are available.

Disclaimer

Mariner’s Yacht & Ship Brokerage, Inc. offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. All speeds, measurements, capacities, consumption, etc. may be approximate or estimated.  Specifications provided for information only.  Data was obtained from sources believed to be reliable and is not guaranteed by owner or brokers.  Buyer assumes the responsibility to ascertain the correctness of all data contained herein and otherwise provided and must instruct his agent and surveyors to confirm all details for accuracy prior to purchase. This vessel is offered subject to prior sale, price change, or withdrawal without notice. All photographs, descriptions and technical data are the sole property of Mariner’s Yacht & Ship Brokerage, Inc. and may not be copied, reproduced or redistributed in part or in whole by any method without the express written consent of the Mariner’s Yacht & Ship Brokerage, Inc.

Owner's personal items are NOT included.

Price History

DateEventPrice
3/31/26Initial price$74,995

Videos from Mariners Yacht & Ship Brokerage, Inc. on this 2003 Grady-White Marlin 300

Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 2003 Grady-White Marlin 300. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Saltwater Fishing cost in today's market, or how much does a Grady-White cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
Monthly payment
$851.17/mo
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Loan amount$ 74,995
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Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 2003 Grady-White Marlin 300. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Saltwater Fishing cost in today's market, or how much does a Grady-White cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
Monthly payment
$851.17/mo
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Loan amount$ 74,995
OR
%

Contact Mariners Yacht & Ship Brokerage, Inc.

24500 Dana Point Harbor Drive, Dana Point, CA, 92629

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Dana Point, CA 92629

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24500 Dana Point Harbor Drive, Dana Point, CA, 92629

By checking this box, I consent to receive recurring marketing text messages, phone calls, and emails from Mariners Yacht & Ship Brokerage, Inc. at the number and email provided, including messages sent using an autodialer or prerecorded voice. Message frequency varies. Message and data rates may apply. Reply STOP to opt out or HELP for assistance. Consent is not a condition of purchase. We'll also send helpful email updates about your boat search. You can unsubscribe whenever you like. See Terms of Use and Privacy Policy.

Contact Mariners Yacht & Ship Brokerage, Inc.

24500 Dana Point Harbor Drive, Dana Point, CA, 92629

By checking this box, I consent to receive recurring marketing text messages, phone calls, and emails from Mariners Yacht & Ship Brokerage, Inc. at the number and email provided, including messages sent using an autodialer or prerecorded voice. Message frequency varies. Message and data rates may apply. Reply STOP to opt out or HELP for assistance. Consent is not a condition of purchase. We'll also send helpful email updates about your boat search. You can unsubscribe whenever you like. See Terms of Use and Privacy Policy.

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