2027 Yamaha Four Stroke V6 Offshore F300UCB

$32,255

Description

Meet the muscle behind your next offshore-ready build: the 2027 Yamaha Four Stroke V6 Offshore F300UCB—a new, engine-only outboard that’s ready to turn a serious hull into a confident, long-legged performer. Finished in classic Yamaha Gray, it looks right at home on the transom of modern center consoles, offshore walkarounds, and big bay boats that demand strong midrange punch and dependable top-end power.
At the heart of this offshore V6 is a 4.2L (4169cc) 24-valve DOHC design that’s all about usable power. With 300 bhp (223.9 kW) at 5500 RPM and a full-throttle range of 5000–6000 RPM, the F300 is a natural match for heavier, fuel-and-gear-loaded hulls that need torque to lift cleanly onto plane and stay there comfortably. Whether you’re pushing through chop, running a long inlet, or carrying a full crew, this engine is built to deliver the kind of acceleration and authority that makes offshore days feel easier.
Because it’s a four-stroke, fuel-injected setup (mid-grade gas), it’s designed for efficient, consistent fueling—exactly what you want when you’re settling into a cruise and watching range matter as much as speed. Add a stout 70-amp alternator, and you’ve got the charging output to support the electronics suite that often comes with serious fishing and navigation setups.
Offshore duty also means confidence in harsh conditions. This Yamaha is salt water capable, uses open-loop water cooling, and includes a visual/audible engine alert system with emergency RPM reduction—smart safeguards when the day turns demanding. Power trim makes dialing in running attitude straightforward, and with remote steering control, it’s ready for clean integration into a proper helm.
This model carries a 30-inch shaft and a 562 lb dry weight, ideal for offshore-style transoms and brackets where length and leverage are part of the plan. A 1.75:1 gear ratio and propeller-driven setup round out a package aimed at strong thrust and controlled, predictable power delivery.
Stop by and see this Yamaha Gray F300UCB in person—if you’re building or repowering for offshore capability, this is the kind of V6 that makes the whole boat feel like it leveled up. Warranty coverage is available—ask our team for the details on what applies to this new engine.

Color Options

  • Yamaha Gray Exterior Color: +$0
  • Pricing

  • Warranty (Months): 36
  • Engine

  • Engine Type: V6
  • Cylinders: 6
  • Horsepower: 300 bhp; 223.9 kW
  • Full Throttle RPM Range Low: 5000
  • Full Throttle RPM Range High: 6000
  • Cooling: Water (Open Loop)
  • Bore: 96 mm; 3.78 in
  • Stroke: 96 mm; 3.78 in
  • Displacement: 4169 cc; 254 ci
  • Compression Ratio: 10.3:1
  • Shaft Length Min (in): 30
  • Shaft Length Max (in): 30
  • Starter: Electric
  • Alternator Amps: 70
  • Fuel Type: Gas
  • Carburetion Type: Fuel Injected
  • Drive Line

  • Gear Ratio(s): 1.75:1
  • Counter Rotating Capable: No
  • Trim System: Standard
  • Trim System Type: Power
  • Steering

  • Outboard Steering Control: Remote
  • Meet the muscle behind your next offshore-ready build: the 2027 Yamaha Four Stroke V6 Offshore F300UCB—a new, engine-only outboard that’s ready to turn a serious hull into a confident, long-legged performer. Finished in classic Yamaha Gray, it looks right at home on the transom of modern center consoles, offshore walkarounds, and big bay boats that demand strong midrange punch and dependable top-end power.
    At the heart of this offshore V6 is a 4.2L (4169cc) 24-valve DOHC design that’s all about usable power. With 300 bhp (223.9 kW) at 5500 RPM and a full-throttle range of 5000–6000 RPM, the F300 is a natural match for heavier, fuel-and-gear-loaded hulls that need torque to lift cleanly onto plane and stay there comfortably. Whether you’re pushing through chop, running a long inlet, or carrying a full crew, this engine is built to deliver the kind of acceleration and authority that makes offshore days feel easier.
    Because it’s a four-stroke, fuel-injected setup (mid-grade gas), it’s designed for efficient, consistent fueling—exactly what you want when you’re settling into a cruise and watching range matter as much as speed. Add a stout 70-amp alternator, and you’ve got the charging output to support the electronics suite that often comes with serious fishing and navigation setups.
    Offshore duty also means confidence in harsh conditions. This Yamaha is salt water capable, uses open-loop water cooling, and includes a visual/audible engine alert system with emergency RPM reduction—smart safeguards when the day turns demanding. Power trim makes dialing in running attitude straightforward, and with remote steering control, it’s ready for clean integration into a proper helm.
    This model carries a 30-inch shaft and a 562 lb dry weight, ideal for offshore-style transoms and brackets where length and leverage are part of the plan. A 1.75:1 gear ratio and propeller-driven setup round out a package aimed at strong thrust and controlled, predictable power delivery.
    Stop by and see this Yamaha Gray F300UCB in person—if you’re building or repowering for offshore capability, this is the kind of V6 that makes the whole boat feel like it leveled up. Warranty coverage is available—ask our team for the details on what applies to this new engine.

    Color Options

  • Yamaha Gray Exterior Color: +$0
  • Pricing

  • Warranty (Months): 36
  • Engine

  • Engine Type: V6
  • Cylinders: 6
  • Horsepower: 300 bhp; 223.9 kW
  • Full Throttle RPM Range Low: 5000
  • Full Throttle RPM Range High: 6000
  • Cooling: Water (Open Loop)
  • Bore: 96 mm; 3.78 in
  • Stroke: 96 mm; 3.78 in
  • Displacement: 4169 cc; 254 ci
  • Compression Ratio: 10.3:1
  • Shaft Length Min (in): 30
  • Shaft Length Max (in): 30
  • Starter: Electric
  • Alternator Amps: 70
  • Fuel Type: Gas
  • Carburetion Type: Fuel Injected
  • Drive Line

  • Gear Ratio(s): 1.75:1
  • Counter Rotating Capable: No
  • Trim System: Standard
  • Trim System Type: Power
  • Steering

  • Outboard Steering Control: Remote
  • Specifications

    ManufacturerYamaha
    ModelFour Stroke V6 Offshore F300UCB
    Year2027
    ConditionNew
    Engine TypeV6
    Bore x StrokeBore: 3.78 in. (96 mm); Stroke: 3.78 in. (96 mm)
    Displacement254 cu. in. (4169 cc)
    StartingElectric
    Trim MethodPower
    Propshaft Horsepower300 bhp; 223.9 kW
    Fuel InductionFuel Injected
    Alternator70
    CoolingWater (Open Loop)
    SteeringRemote
    Warranty36