Yamaha 250 HP V6 4-Stroke Outboard 30 Inch Shaft
The Yamaha F250 NCB is a 4166cc V6 four-stroke outboard engine engineered for large offshore vessels. This model features a 30-inch extra-long shaft and utilizes a Double Overhead Camshaft design with 24 valves for efficient combustion. The engine is equipped with digital controls and electric steering to provide precise handling. It includes a multi-point Electronic Fuel Injection system and a gear ratio of 1.75:1. The unit features a high-output 70-amp alternator to support onboard electronics and a power trim and tilt system for depth adjustment. This engine is intended for installation on transoms requiring a 30-inch shaft length and is compatible with standard BIA mounting patterns.
Used. Sold as a used unit. The original factory warranty has expired or is non-transferable — any remaining coverage is only as stated in writing on your invoice.
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- No factory warrantySee condition & warranty above
- Crated FreightDamage claim assistance
- Free LTL ShippingContiguous U.S.
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.
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