
Heavy-duty 3.9L diesel engine for the Hyundai Mighty and HD trucks — up to 136 hp with exceptional durability and torque.
The Hyundai D4DA is the 3.9-liter inline-4 diesel engine used in the Hyundai Mighty (EX8/EX9) and HD-series trucks. It is a water-cooled, direct-injection engine built for continuous heavy-duty operation and a very long service life.
Producing from around 98 to 136 hp with torque of roughly 280 to 324 Nm, the D4DA delivers strong, low-speed pulling power for loaded commercial use. It is also widely used as a generator engine (D4DA-G).
Each unit is compression-tested, leak-checked and inspected before shipment.
Specifications: - Displacement: 3.9L (3,907 cc) - Configuration: Inline-4 - Fuel system: Direct injection - Bore x stroke: 104 mm x 115 mm - Power: 98–136 hp - Torque: approx. 280–324 Nm - Applications: Hyundai Mighty (EX8/EX9), HD trucks, generator engines - Condition: Used, inspected & tested