Doosan Daewoo DB58 Electric Start Diesel Engine Introduction
The Doosan DB58 is a 6-cylinder, inline, water-cooled, 4-stroke diesel engine manufactured by Doosan (Daewoo) of South Korea. It is primarily used in generator sets, construction machinery (such as excavators and loaders), and various industrial equipment. Known for its simple structure, reliability, durability, strong torque output, and good fuel economy, it is a classic model in the mid-power range (~60–95 kW / ~80–130 HP) diesel engine segment.
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Technical description
✅1. Design and Structure
Utilizes an inline 6-cylinder layout, offering excellent balance and low vibration.
Equipped with a mechanical fuel pump and injection system (some variants may use Bosch or Zexel fuel pumps).
Uses dry-type steel cylinder liners for durability and easy maintenance.
✅2. Strong Torque and Fuel Economy
Smooth torque output; high torque characteristics suitable for heavy-duty, power generation, and continuous load operation.
Naturally aspirated version offers reasonable fuel consumption, suitable for medium-load, long-term operation.
✅3. Reliability and Maintenance
Mature structure, simple mechanical control system, easy maintenance, and good parts interchangeability.
Exhibits stable service life under heavy-duty conditions such as generator sets and construction machinery.

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Our address
No.129, Jianshe North Road, Jining City, Shandong Province, China
Phone Number
(+86) 15265755218
frank@pinbotrade.com

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