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Mitsubishi S3L S3L2 S4L S4L2 engine
Knowledge base for the Mitsubishi S3L, S3L2, S4L, and S4L2 diesel engines: compact 3- and 4-cylinder swirl chamber engines (78 mm bore) ranging from approximately 16 to 38 hp, used in Vetus, Solé, Caterpillar, Pel-Job, Weidemann, Mahindra, Solis, TYM, Farmtrac, and other equipment. Practical information on specifications, torque values, maintenance, overhaul, cooling, fuel/injection, starting, and troubleshooting, plus original and compatible parts.
06/07/2026
Buying a Mitsubishi S3L, S3L2, S4L or S4L2? The differences between 3- and 4-cylinder, the power output, and what to look for in a used engine.
06/07/2026
All specifications and complete torque settings for the Mitsubishi S3L, S3L2, S4L and S4L2 from the workshop manual, with the head bolt tightening sequence.
06/07/2026
Maintenance of the Mitsubishi S3L, S3L2, S4L and S4L2: the correct engine oil and quantity, oil filter, filter set and V-belt, with values from the workshop manual.
06/07/2026
Overhauling the cylinder head and block of the Mitsubishi S3L, S3L2, S4L, and S4L2: wear limits, clearances, torque settings, and the head bolt sequence from the workshop service manual.
06/07/2026
Cooling system of the Mitsubishi S3L, S3L2, S4L and S4L2: thermostat 82 degrees, coolant capacity, water pump, V-belt and the causes of overheating.
06/07/2026
Fuel system, injectors, injection timing, preheating and starting of the Mitsubishi S3L, S3L2, S4L and S4L2, including bleeding the fuel system.
06/07/2026
The most common problems of the Mitsubishi S3L, S3L2, S4L and S4L2: symptom, cause and solution, from poor starting to smoke and overheating.
