The Foton 4F25TC9 is a modern 2.5-liter turbocharged diesel engine developed by Foton Motor for light commercial vehicle applications. This inline-four cylinder engine features advanced common rail direct injection technology, dual overhead camshaft (DOHC) design, and 16-valve configuration. The 4F25TC9 delivers excellent fuel efficiency, low emissions, and reliable performance for urban delivery, logistics, and commercial transport applications.

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Technical Specifications:

• Engine Code: 4F25TC9 / 4F25TC
• Engine Type: Inline-4, 4-stroke, water-cooled, turbocharged diesel
• Displacement: 2.5 L (2,496-2,499 cc)
• Bore × Stroke: 88 mm × 102 mm
• Valve Configuration: DOHC 16-Valve (4 valves per cylinder)
• Aspiration: Turbocharged with intercooler (VGT variable geometry turbocharger)
• Fuel System: High-pressure common rail direct injection (CRDI)
• Injection Pressure: Up to 1,600-1,800 bar
• Compression Ratio: 16.5:1 - 17.5:1
• Firing Order: 1-3-4-2

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Performance Data:

• Maximum Power Output:
  • 85 kW (115 HP) @ 3,200 RPM
  • 92 kW (125 HP) @ 3,600 RPM
  • 100 kW (136 HP) @ 3,600 RPM (variant-dependent)
• Maximum Torque:
  • 280 Nm @ 1,600-2,400 RPM
  • 320 Nm @ 1,600-2,400 RPM
  • 350 Nm @ 1,600-2,200 RPM (variant-dependent)

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Key Features:

• Advanced Fuel Injection: High-pressure common rail system for precise fuel delivery, improved combustion efficiency, and reduced emissions
• Turbocharging: Variable geometry turbocharger (VGT) with intercooler for enhanced low-end torque and reduced turbo lag
• Emission Compliance: Meets China IV / China V / China VI emission standards with EGR (Exhaust Gas Recirculation) and optional DPF (Diesel Particulate Filter)
• Lightweight Design: Aluminum alloy cylinder head for reduced weight and improved heat dissipation
• Durability: Reinforced cast iron cylinder block with optimized cooling passages
• Low Noise & Vibration: Balanced design with hydraulic lifters and optimized injection timing
• Electronic Control: ECU-controlled engine management system for optimal performance and diagnostic capabilities

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Applications:

• Foton Ollin / Forland: Light-duty trucks (BJ1049, BJ1039 series)
• Foton View / Gratour: Commercial vans and MPVs
• Foton Toano: Light buses and passenger vans
• Foton Tunland: Pickup trucks (select variants)
• Foton BJ6586 / BJ6606: Minibus applications
• Special Purpose Vehicles: Ambulances, refrigerated trucks, box trucks, and utility vehicles
• Aftermarket: Engine replacement and repower applications