Outboard engine HDEF50 EFI
gasolinerecreationalwork

Outboard engine - HDEF50 EFI - HIDEA - gasoline / recreational / work
Outboard engine - HDEF50 EFI - HIDEA - gasoline / recreational / work
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Characteristics

Type
outboard
Power source
gasoline
Market
for boat, recreational, work
Cooling system
water-cooled
Ignition
electric start
Other characteristics
4-stroke
Power

36.8 kW
(50 hp)

Displacement

996 cm³
(34 US fl oz)

Number of cylinders

4 unit

Engine speed

Max.: 5,800 rpm
(36,442 rad.min-1)

Min.: 5,000 rpm
(31,416 rad.min-1)

Bore

65 mm
(2.6 in)

Stroke

75 mm
(3 in)

Weight

Max.: 126 kg
(278 lb)

Min.: 121 kg
(267 lb)

Description

Overview
HDEF50 EFI is a mid-range 4-cylinder, 4-stroke outboard developed by Hidea, integrating DELPHI programmed Electronic Fuel Injection (EFI) for precise fuel delivery and responsive throttle control.

Key features
  • Electronic Fuel Injection (EFI): Programmed EFI with DELPHI system for accurate ignition timing, instant throttle response and fuel-efficient operation.
  • Quick starts: EFI automatically adjusts the air–fuel mixture for fast starts and smooth warm-up.
  • More quiet: Reverse Exhaust Relief system redirects exhaust through the propeller into the water to reduce running noise.
  • Engine Alert System: Continuous monitoring of vital engine parameters, alerting the operator to overheating, low oil pressure and other critical conditions.
  • Power Thrust Design: Higher gear ratio provides enhanced forward and reverse thrust for improved maneuverability.
  • Cruising fuel economy: Multi-Point Fuel Injection with long intake tracks adjusts mixture by speed and load, optimizing power across the rpm range and saving up to 20% fuel at cruising speed.


Performance and operation
The HDEF50 EFI delivers responsive mid-range performance with electric start and ECM ignition for reliable control. The unit supports rear or front operation and uses gearing and thrust optimization to enhance handling and maneuvering in typical work and recreational boating applications.

Specifications
Model: HDEF50 EFI
Max. power: 36.8 KW (50.12 PK)
Max. RPM: 5000-5800 RPM
Motortype: 4-stroke
Cylinder: 4
Engine capacity: 996 CC
Bore x Stroke: 65 x 75 mm
Weight: L:126.4/120.5 KG
Gear Shifting: F-N-R
Ignition: ECM
Cooling: Water
Starting Procedure: Electric Start
Operation: Rear / Front operation
Fuel Tank Capacity: 24L

Technical specifications
  • Model: HDEF50 EFI
  • Max. power: 36.8 KW (50.12 PK)
  • Max. RPM: 5000-5800 RPM
  • Motor type: 4-stroke
  • Cylinders: 4
  • Engine capacity: 996 CC
  • Bore x Stroke: 65 x 75 mm
  • Weight: L:126.4/120.5 KG
  • Gear shifting: F-N-R
  • Ignition: ECM
  • Cooling: Water
  • Starting procedure: Electric Start
  • Operation: Rear / Front operation
  • Fuel tank capacity: 24L


Disclaimer
Due to Hidea’s ongoing commitment to product improvement, we reserve the right to change without notice equipment, materials, specifications or prices.

Exhibitions

Meet this supplier at the following exhibition(s):

CANNES YACHTING FESTIVAL 2026
CANNES YACHTING FESTIVAL 2026

8-13 Sep 2026 CANNES (France) Hall H5.3 - Stand F078

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.