Yamaha F250 NCB 250 HP V6 4-Stroke Outboard Motor with 30 Inch Extra Long Shaft
The Yamaha F250 NCB is a 4.2-liter V6 four-stroke outboard engine designed for large offshore vessels. This model features a 30-inch extra-long shaft and utilizes a Double Overhead Camshaft (DOHC) design with 24 valves for efficient combustion. The engine is equipped with Drive-by-Wire digital controls, Digital Electric Steering (DES), and the TotalTilt function for simplified operation. It includes the Thrust Enhancing Reverse Exhaust (TERE) system to improve maneuverability while backing up. The fuel delivery is managed by a multi-point Electronic Fuel Injection (EFI) system. With a gear ratio of 1.75:1 and a high-output 70-amp alternator, this unit provides consistent power for onboard electronics and propulsion. This engine is intended for installation on transoms requiring a 30-inch shaft length and is compatible with standard BIA mounting patterns.
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- Factory WarrantyIncluded on every unit
- Freight-InsuredCrate damage covered
- Authorized DealerDirect from OEM channels
Smart Compatibility Checker
Enter your transom measurement and the USCG max-HP plate rating from your hull.
Every spec, no calls required
- Horsepower
- 250 HP
- Stroke
- 4-Stroke
- Displacement
- 4166 cc
- Cylinders
- 6
- Operating RPM Range
- 5000-6000
- Gear Ratio
- 1.75:1
What's in the Crate
Each engine ships on a reinforced LTL pallet. Crated weight approx. 666 lb.
- Powerhead with factory-sealed cowling and cylinder cover
- Mounting hardware kit — BIA standard
- Integrated power trim/tilt assembly (pre-charged)
- Owner's manual, warranty registration card, and rigging diagrams
- Anode set installed (saltwater-grade zinc/aluminum)
- Propeller (sold separately — see compatible diameters in specs)
- Throttle/shift controls, harness, and key switch
- Rigging gauges (tach, fuel, trim) and digital display
- Battery, battery cables, and isolator
- Steering helm, hoses, and hydraulic fluid
Freight & Transit Estimator
LTL liftgate delivery to the lower 48. Carrier calls to schedule a 4-hour window.
- Crated weight
- 666 lb
- Crate dims
- 72" × 36" × 48"
- Carrier class
- LTL Class 85
- Signature
- Required at delivery
Compatibility & Rigging FAQ
Mechanical and electrical facts for your rigger. Specifications follow ABYC and OEM service standards.
