2025 Yamaha Marine 4.3L V6 Offshore 350 HP Base

Information

2025 Yamaha Marine 4.3L V6 Offshore 350 HP

4.3L V6 Offshore F350

Dark blue water. Miles from land. Nothing but you, your crew and the monsters raring to give you a run for your money. Year after year—your love of the offshore remains unchanged. Your tech on the other hand is always the most advanced—including your outboard. The all-new 4.3L V6 Offshore F350 merges all the best tech from our full line of outboards with some impressive tech of its own. The result is a perfectly balanced, deep breathing V6 that delivers jaw-dropping power and the best power-to-weight in its class—the new, 4.3L V6 Offshore F350.

Weighing in at 629 pounds and delivering an astounding 11:1 compression ratio, the new 4.3L V6 Offshore F350 creates jaw-dropping power in an incredibly light design. In fact, it boasts the best power-to-weight in its class—by more than 65 pounds. Available in Yamaha gray, pearlescent white or new classic white, the 4.3L V6 F350 is the new knockout offshore.

Features may include:

  • Recommended fuel: 89 Octane
  • Shaft lengths available: 25”, 30” and 35”
  • Alternator output: up to 70 amp

Photos

Highlights

  • Wildwood, New Jersey
  • 2025
  • Yamaha Marine
  • 4.3L V6 Offshore 350 HP Base
  • Recommended: Octane 89 | Recommended Filtration: Yamaha 10-Micron Fuel / Water Separating Filter (external)
  • Available

Specifications

  • 2025
  • Yamaha Marine
  • 4.3L V6 Offshore 350 HP
  • Base
  • Four Stroke
  • V6
  • Prop Shaft: 350 @ 6000
  • 4.3L
  • 3.78 in (96 mm)
  • 3.86 in (98 mm)
  • 11.0:1
  • Full RPM Range: 5000 ~ 6000 rpm
  • Integrated, Electric Actuation | Angle (maximum): 32° from center, either direction
  • Through Propeller (Except in Reverse Under 2500 RPM)
  • TCI Microcomputer
  • Recommended: Yamalube® 4M (See owner's manual)
  • Wet Sump
  • Recommended: Thermostatic Control
  • 1.75:1
  • Forward, Neutral, Reverse
  • ILMAR7E-9 / Iridium
  • System: Electric w/ PTT
  • Output at W.O.T.: 50 – 70 amp
  • Ethanol Blend Limit: 10% Maximum
  • Recommended: Octane 89 | Recommended Filtration: Yamaha 10-Micron Fuel / Water Separating Filter (external)
  • Degree of Tilt: 69° | Degree of Trim: -3° through +16° | Mounting Centers: 28.5"
  • Shaft: 25" - 30" - 35"
  • (7.9 L) | (7.6 L)
  • 629 lbs (286 kg) / 642 lbs (291 kg) / 653 lbs (296 kg)
  • Intake: 24 | C.A.R.B. Rating: 3 Star
  • Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial