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Honda BF50DK4
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Code:BF50DK4SRTU
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Weight:96.000 Kgs
Honda BF50DK4SRTU / BF50DK4LRTU – 50 HP, Remote Control, Power Trim & Tilt
The Honda BF50 is a compact and fuel-efficient 4-stroke outboard delivering 50 HP, designed for recreational, fishing and professional boats. The BF50DK4SRTU and BF50DK4LRTU offer the same power and main equipment, with shaft length being the key difference between the two versions.
The BF50DK4SRTU features a short shaft (S) – 416 mm, while the BF50DK4LRTU features a long shaft (L) – 521 mm. Both models are equipped with electric start, remote console control and hydraulic Power Trim & Tilt for convenient engine angle adjustment.
A 17 A battery charging capacity provides reliable power for the battery and onboard electrical equipment.
These engines are suitable for a wide range of medium-sized motorboats, RIBs, fishing and recreational boats rated by their manufacturer for 50 HP. The choice between the S and L versions should primarily be based on the boat's transom height.
Key difference:
- BF50DK4SRTU – Short Shaft, 416 mm
- BF50DK4LRTU – Long Shaft, 521 mm
Quick Buy
Honda BF50DK4SRTU / BF50DK4LRTU – 50 HP 4-Stroke Outboard Engine
The Honda BF50 combines compact dimensions with advanced 4-stroke technology, responsive performance and excellent fuel efficiency. Its 808 cc three-cylinder engine features Honda PGM-FI electronic fuel injection for smooth operation, reliable starting and efficient fuel delivery.
Honda BLAST™ (Boosted Low Speed Torque) technology enhances acceleration and helps the boat get onto the plane quickly, while ECOmo lean-burn technology optimises fuel efficiency during cruising.
BF50DK4SRTU vs BF50DK4LRTU
Both versions offer the same 50 HP output, remote control and main features. The key difference is shaft length:
- BF50DK4SRTU (S) – Short Shaft, 416 mm
- BF50DK4LRTU (L) – Long Shaft, 521 mm
The correct version should be selected according to the transom height and design specified by the boat manufacturer.
Control and Trim
Both models feature electric start and remote console control.
Honda Power Trim & Tilt provides hydraulic adjustment of the engine angle at the touch of a button. This makes it easier to optimise boat attitude according to speed, load and water conditions, as well as raise the engine when required.
Electrical System
The BF50 features a high-output alternator rated at up to 22 A, providing 17 A battery charging capacity to support reliable battery charging and onboard electrical equipment.
Key Specifications
- Power: 50 HP
- Engine: 4-stroke petrol outboard
- Configuration: 3 cylinders
- Displacement: 808 cc
- Fuel system: PGM-FI electronic fuel injection
- Starting system: Electric
- Steering/control: Remote
- Gear selection: F-N-R (Forward – Neutral – Reverse)
- Trim & Tilt: Hydraulic Power Trim & Tilt
- Battery charging capacity: 17 A
- BF50DK4SRTU: Short Shaft – 416 mm
- BF50DK4LRTU: Long Shaft – 521 mm
Recommended Applications
The Honda BF50 is well suited to RIBs, motorboats, fishing boats, recreational craft and selected commercial applications where a 50 HP outboard is within the boat manufacturer's approved power range.
Boat length alone should not be used to determine engine compatibility. Maximum permitted horsepower and engine weight, transom height, hull design and expected load should also be considered.
Equipment and Optional Integration
The SRTU and LRTU versions are configured for remote control and Power Trim & Tilt. Depending on the specific package and market, equipment may include a remote control box, tachometer, trim gauge, fuel tank and propeller.
The BF50 is NMEA 2000® compatible, allowing engine data to be integrated with compatible multifunction displays, navigation equipment and other onboard electronics. Trolling Control can also be supported with the appropriate configuration, providing precise low-speed adjustment for fishing applications.
Please note: Always confirm the exact package contents for the specific product code before ordering, as gauges, propeller, fuel tank, control components and installation accessories may vary by market and supplier.
Who it’s for
For boats rated for a 50 HP engine with a compatible transom and permitted engine weight. Configuration: short S / long L shaft; remote steering. Check the exact variant before ordering.
FAQ
Which configuration does the Honda BF50DK4 offer?
50 HP; short S / long L shaft; remote steering; electric starting. Select the exact variant on the product card; the listed shaft lengths are alternatives, not one configuration.
Will it fit my boat?
Check maximum permitted engine power and weight, transom height and installation requirements in the boat documentation. Hull length alone does not establish compatibility.
What should I confirm for installation?
Provide the boat model and exact product code. Confirm the propeller and fuel system, remote controls, cables, instruments and steering system, plus the required starting battery. Delivery contents must be checked for the specific SKU.
How should the propeller be selected?
Selection depends on hull design, loaded boat weight and the engine operating range. Do not choose diameter and pitch by horsepower alone; confirm suitability for the specific installation.
Which details should I send before ordering?
Provide your boat model, rated maximum engine power and weight, transom height and preferred steering arrangement. Refer to the selected variant and order confirmation for availability and lead time.