The cylinder head with reference number 31B01-31021 is designed for Mitsubishi S3L2 1.3L naturally aspirated diesel engines. This precision-engineered component features cast iron construction with SOHC 6-valve configuration (2 valves per cylinder), compatible with Mitsubishi Jeep, Volvo EC25 excavator, and industrial equipment platforms. The cylinder head delivers reliable sealing, efficient heat dissipation, and durable performance for off-road vehicle and compact construction equipment applications.

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Technical Features:

• Reference Number: 31B01-31021
• Type: Cylinder Head (Bare)
• Valve Configuration: SOHC 6-Valve (2 valves per cylinder, 3-cylinder)
• Material: Cast Iron
• Application: S3L2 1.3L Naturally Aspirated Diesel Engine

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Engine Parameters:

• Engine Code: S3L2 / S3L2-C (Mitsubishi Industrial Diesel Family)
• Displacement: 1.3 L (1,299 cc)
• Configuration: Inline-3 SOHC, Naturally Aspirated Diesel
• Power Output: 18-24 kW (24-32 HP) @ 3000 RPM
• Torque: 75-90 Nm @ 1800-2200 RPM
• Fuel System: Indirect Injection (IDI) / Distributor Pump
• Compression Ratio: 23.0:1 - 24.0:1
• Bore × Stroke: 78 mm × 90 mm
• Firing Order: 1-2-3
• Emission Standard: Local / Non-Road Standards

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Suitable Models:

• Mitsubishi Jeep J-series (J30/J40, select diesel variants)
• Volvo EC25 / EC27 Mini Excavator
• Mitsubishi MLT25 / MLT30 Forklift
• Mitsubishi S3L2-powered generators & pumps
• Compact construction equipment & agricultural machinery
• Industrial power units & stationary applications