The SAIC Maxus SC28R150Q6 is a modern 2.8-liter turbocharged diesel engine developed by SDEC (Shanghai Diesel Engine Company) for light commercial vehicle applications. This inline-four cylinder engine features advanced high-pressure common rail direct injection technology, dual overhead camshaft (DOHC) design, and 16-valve configuration with variable geometry turbocharging. The SC28R150Q6 delivers strong performance, excellent fuel efficiency, and refined operation for urban delivery, regional logistics, and passenger transport applications. Designed to meet China VI emission standards, this engine powers the Maxus V80, Deliver 9, and related commercial platforms across China and export markets.

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Technical Specifications:

• Engine Code: SC28R150Q6 / SC28R Series
• Engine Type: Inline-4, 4-stroke, water-cooled, turbocharged diesel
• Displacement: 2.8 L (2,776 cc)
• Bore × Stroke: Approximately 93.0 mm × 102.0 mm
• Valve Configuration: DOHC 16-Valve (4 valves per cylinder)
• Valve Train: Chain-driven or belt-driven DOHC with hydraulic lifters
• Fuel System: High-pressure common rail direct injection (CRDI) with electronic control
• Aspiration: Turbocharged with variable geometry turbocharger (VGT) and intercooler
• Compression Ratio: 16.5:1 - 17.5:1
• Firing Order: 1-3-4-2

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Performance Data:

• Maximum Power Output:
  • 110 kW (150 HP) @ 3,600 RPM (SC28R150Q6 standard output)
• Maximum Torque:
  • 375 Nm @ 1,600-2,400 RPM (strong low-end torque for loaded conditions)
• Redline: Approximately 4,200-4,500 RPM
• Idle Speed: 750-800 RPM (warm engine)

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Key Features:

• High-Pressure Common Rail Injection: Fuel pressure up to 1,800 bar with electronically controlled injectors delivers precise fuel metering for optimized combustion, reduced emissions, and improved fuel economy
• Variable Geometry Turbocharger (VGT): Electronically controlled turbo vanes provide strong low-end torque, reduced turbo lag, and responsive power delivery across the operating range
• Dual Overhead Camshaft Design: DOHC architecture with four valves per cylinder optimizes airflow for efficient combustion, refined operation, and enhanced breathing at higher RPM
• China VI Emission Compliance: Integrated EGR (Exhaust Gas Recirculation), DPF (Diesel Particulate Filter), DOC (Diesel Oxidation Catalyst), and SCR (Selective Catalytic Reduction) with AdBlue enable compliance with stringent China VI (GB17691-2018) emission standards
• Electronic Engine Management: Bosch or SDEC-developed ECU controls injection timing, turbo boost, EGR flow, and aftertreatment systems for optimal performance, diagnostics, and OBD compliance
• Robust Commercial Design: Reinforced cast iron cylinder block, forged steel crankshaft, and optimized cooling passages support sustained heavy-duty operation and high-mileage commercial use
• Refined NVH Characteristics: Balanced rotating assembly, hydraulic engine mounts, and acoustic insulation deliver quiet, vibration-free operation suitable for passenger van applications

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Applications:

• SAIC Maxus V80: Light commercial van for cargo and passenger transport (short/long wheelbase, high/low roof variants)
• SAIC Maxus Deliver 9: Export-market light commercial van and chassis cab
• SAIC Maxus EV80: Range-extended electric variant (as range extender generator)
• Maxus V80 Ambulance / Mobile Clinic: Special-purpose vehicle conversions
• Maxus V80 Refrigerated Van / Box Truck: Temperature-controlled logistics applications
• Maxus V80 Minibus: 10-15 seat passenger transport variants
• Aftermarket & Conversions: Engine replacement, repower, and specialty vehicle projects for light commercial platforms