Description
Advanced 40HP EFI 4-Stroke Marine Engine Performance
The Hidea HDEF40 4-stroke outboard motor combines advanced technology with dependable commercial and recreational power. Featuring a 3-cylinder, 747 cc powerhead with Single Overhead Camshaft (SOHC) and 6 valves, it utilizes a DELPHI Programmed Electronic Fuel Injection (EFI) system that accurately regulates ignition timing and air-fuel mixture for turnkey starting and smooth idling.
Designed for superior control and quiet operation, it incorporates a Power Thrust design with a 2.0 (26:13) gear ratio for extraordinary forward and reverse pushing power, a Reverse Exhaust Relief system that routes exhaust underwater through the prop for quieter running, and an integrated Engine Alert System to protect against overheating and low oil pressure. Available in long shaft (21 inch) electric start configurations with rear tiller handle or front remote control options.
Summary of key features
- DELPHI Electronic Fuel Injection (EFI): Multi-point EFI automatically regulates air-fuel mixture according to speed and load, saving up to 20% fuel at cruising speeds.
- 40 HP 3-Cylinder 4-Stroke Engine: 747 cc displacement 6-valve SOHC powerhead delivers strong torque and responsive acceleration.
- Turnkey Quick Starts: EFI system automatically adjusts air-fuel mixture for quick, effortless starting and rapid engine warm-up.
- Power Thrust Design: Higher 2.0 gear ratio provides extraordinary forward and reverse thrust for superior vessel maneuverability.
- Quiet Reverse Exhaust Relief: Redirects exhaust gas underwater through the propeller hub for significantly reduced running noise.
- Engine Alert Safeguard System: Constantly monitors vital functions including oil pressure and water temperature to protect internal engine components.
40HP 3-Cylinder 4-Stroke
747 cc Displacement
Programmed DELPHI EFI System
Power Thrust Gear Ratio







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