Outboard engine HDEF175 EFI

gasolineprofessionalfor boat

Product overview
The Hidea HDEF175 EFI is a 175 HP four-stroke inline 4-cylinder outboard motor with electronic fuel injection and 2785 cc displacement. Designed for mid-to-high range leisure and professional boats, it delivers strong power, low emissions and refined handling. As a flagship model it integrates DOHC 16-valve architecture, electronic throttle body (ECT), coil-on-plug ignition (COP), dual-axis second-order balance system, waterproof ECU (IP67), digital control and APP diagnostics while complying with EU CE and US EPA standards.

Key features

• Distinctive appearance: One-piece top cover, base and cowling with smooth lines for a professional maritime aesthetic.
• Next-generation electronic fuel injection: Marine-grade injector with multi-sensor feedback (intake temp/pressure, knock, cam/crank position) for precise fuel and ignition control, improving combustion, fuel economy and emissions; includes waterproof ECU (IP67), carbon canister evaporation control and adjustable trolling mode.
• Excellent NVH performance: Dual-axis second-order balance, precision-weighted piston-connecting-rod assembly, knock-sensor adaptive control, optimized mounting frame and reverse-exhaust release for quiet, smooth operation across the rev range.
• Robust charging & alarm system: High-capacity generator for multiple onboard devices; ECU monitors key parameters and provides audible/visual alarms.
• Intelligent digital control: ECM and ECU communication supports single, twin or multi-engine setups; HD digital display with charts and NMEA2000 interface for accurate start/throttle/gear/warm-up/docking control.
• APP mobile diagnostics: Mobile app for engine status reading and ECU firmware updates.
• Industry-leading corrosion resistance: Multi-layer protective coatings for superior seawater corrosion protection and long service life.

Specifications

• Model: HDEF175 EFI
• Max. power: 128.7 kW (175 HP)
• Max. RPM: 5000–6000
• Engine type: 4-stroke inline 4-cylinder
• Cylinders: 4
• Displacement / Engine capacity: 2785 cc
• Bore x Stroke: 96 x 96.2 mm
• Weight: L: 226 kg; XL: 230 kg
• Gear shifting: F-N-R (Forward-Neutral-Reverse)
• Ignition system: ECM with COP
• Fuel system: Electronic Fuel Injection (marine injector)
• Cooling: Water-cooled
• Starting: Electric start
• Operation / Control: Remote control; supports single/dual/multiple engine digital control, HD display and NMEA2000