Yamaha LF300UCB Outboard – 30-Inch Shaft | Counter Rotation | Digital Electronic Control (DEC) | Electric Start | Power Trim & Tilt | EFI with Variable Camshaft Timing | Gray
Yamaha LF300UCB Outboard – 30-Inch Shaft | Counter Rotation | Digital Electronic Control (DEC) | Electric Start | Power Trim & Tilt | EFI with Variable Camshaft Timing | Gray
Yamaha LF300UCB Outboard – 30-Inch Shaft | Counter Rotation | Digital Electronic Control (DEC) | Electric Start | Power Trim & Tilt | EFI with Variable Camshaft Timing | Gray is backordered and will ship as soon as it is back in stock.
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Description
Description
Yamaha Outboard – LF300UCB
30-Inch Shaft | Counter Rotation | Digital Electronic Control (DEC) | Electric Start | Power Trim & Tilt | EFI with Variable Camshaft Timing | Gray
The Yamaha Outboard – LF300UCB is engineered for maximum offshore power, precise handling, and balanced performance in twin or triple-engine configurations. Its counter-rotation design counteracts torque pull for smoother steering and improved stability. The 30-inch shaft provides optimal propeller depth for heavier offshore hulls and rough-water applications.
Powered by Yamaha’s proven 4.2-liter V6 with Variable Camshaft Timing (VCT) and Electronic Fuel Injection (EFI), this model delivers fast acceleration, broad torque delivery, and excellent fuel economy. The durable Gray finish offers long-lasting protection against harsh saltwater conditions.
⚠️ Important: This is a Digital Electronic Control (DEC) engine and must be installed by an authorized Yamaha dealer. Both the outboard and the DEC control system require flashing and configuration with Yamaha diagnostic tools during installation. DIY installation is not supported.
Key Features
- Engine Type: 4.2L V6, DOHC with Variable Camshaft Timing
- Horsepower: 300 HP
- Fuel System: Electronic Fuel Injection (EFI)
- Controls: Digital Electronic Control (DEC)
- Start Type: Electric Start
- Shaft Length: 30"
- Rotation: Counter Rotation
- Trim & Tilt: Power Trim & Tilt
- Color: Gray
- Alternator: High-output for marine electronics
- Weight: Approximately 562 lbs (dry)
Why Choose the Yamaha Outboard – LF300UCB?
- Counter-Rotation Advantage: Reduces steering torque for smoother multi-engine control
- Extended Shaft: Ideal for larger offshore boats and rough sea conditions
- DEC Precision Control: Delivers smooth, responsive throttle and shifting
- Corrosion-Resistant Build: Perfect for demanding saltwater use
- Balanced Power and Efficiency: Delivers both speed and fuel savings
Need help choosing your engine? Check out our Yamaha engine guide.
Frequently Asked Questions
Q: Why choose a 30-inch shaft over a shorter one?
A: A 30-inch shaft is designed for deep transoms or heavy offshore hulls where extra propeller depth is needed for efficiency and stability.
Q: Is this a good match for single-engine setups?
A: While possible, counter-rotation models are intended for multi-engine configurations to balance torque.
Q: Does the DEC system require special components?
A: Yes, it requires Yamaha DEC rigging and must be set up by an authorized Yamaha dealer.






