SDEC was founded in 1947 and is a diesel engine manufacturer. They are ISO9001, QS9000 and TS16949 certified, which is testament to their quality and reliability.
SDEC 24kW Diesel Engine
Smart Design and Effective Cooling
The SDEC 4Z2.7-G21 engine uses a space saving vertical inline 4-stroke design with a wet-liner cylinder layout. This setup puts the cooling liquid directly against the cylinder walls, pulling heat away quickly to keep the engine running at a stable temperature during long power cuts.
Simple Mechanical Layout
Built with a straightforward overhead valve system—featuring one intake and one exhaust valve per cylinder, this engine reduces mechanical complexity. Fewer moving parts mean less wear and tear, lower maintenance needs, and highly reliable performance when your power drops.
Rugged Build and High Reliability
Built with a high strength cast iron block and an integrated cylinder head, this engine handles workloads without breaking a sweat. It is highly fuel efficient and delivers steady torque, making it a top choice for local generator builders and pump room engineers, powering commercial, agricultural, and industrial setups. The straightforward layout keeps maintenance simple and ensures the engine stays up and running under tough conditions.
Key Technical Features
Heavy-Duty Construction: The strong cylinder block and integrated head are built with top quality parts to extend the engine's working life.
Precision Manufacturing: Produced under strict SAIC Motor quality controls and world-class German production standards for excellent consistency and balanced performance.
Reliable Cold Starts: Starts up instantly without a pre-heater down to -10°C, and can handle freezing conditions as low as -30°C with an auxiliary heater attached.
Fuel Efficient: Meets Off-Road Stage II emission standards, ensuring a cleaner burn and highly efficient fuel consumption.


