High quality DE12 engine for Doosan DE12 engine

🛠️

Doosan DE12 Diesel Engine Introduction

The Doosan DE12 diesel engine is a powerful and reliable inline 6-cylinder engine, widely used in heavy-duty construction equipment, commercial vehicles, and industrial applications. Manufactured by Doosan Infracore, a globally recognized Korean brand known for durable power solutions, the DE12 engine is engineered to deliver exceptional performance, fuel efficiency, and long service life.

🔧 Engine Overview

The DE12 is a 6-cylinder, 4-stroke, water-cooled diesel engine with a displacement of approximately 11.05 liters. Depending on the configuration, it is available in naturally aspirated, turbocharged (DE12T), and turbocharged intercooled (DE12TI) versions. These variations enable the engine to meet different power and environmental requirements, ranging from 290 HP to 340 HP.

Its strong cast iron block, high-torque output, and simple mechanical structure make it a preferred choice for equipment operating in harsh conditions. The DE12 is designed for both reliability and ease of maintenance, allowing end-users to reduce downtime and maintenance costs.

⚙️ Key Technical Specifications (Typical for DE12TI)

• Engine model: Doosan DE12TI

• Type: 4-stroke, 6-cylinder in-line, turbocharged, intercooled

• Displacement: 11.05 L

• Bore x Stroke: 123 mm × 155 mm

• Compression Ratio: 17:1

• Max Power Output: ~340 HP (253 kW) @ 2,100 RPM

• Cooling System: Water-cooled

• Fuel System: Mechanical fuel injection or optional electronic control

• Weight (dry): Approx. 960 kg

🧱 Applications

The DE12 engine is highly versatile and commonly used in the following equipment:

• Excavators (e.g., Doosan DX series)

• Wheel Loaders

• Bulldozers

• Crawler Drills and Mining Machines

• Heavy-duty Trucks and Buses

• Diesel Generator Sets (especially in 200–300kVA range)

• Marine Auxiliary Engines

Because of its durability, DE12 is often chosen for equipment operating in extreme weather or off-road environments, including mining, oil & gas, infrastructure, and construction sectors.

🔩 Key Advantages

• Durability: Built with high-strength components for heavy-load performance

• Fuel Efficiency: Optimized combustion for lower fuel consumption

• Parts Availability: Wide aftermarket support, with rebuild kits, overhauls, and spare parts readily available

• Simple Maintenance: User-friendly design with easy access to service points

• Powerful Output: High torque at low RPM, ideal for heavy equipment

🛒 For Buyers

At Guangzhou Jianming / JAMIEGZ, we supply complete DE12 engines, both brand-new and professionally rebuilt options, along with engine parts like pistons, liners, crankshafts, gaskets, and DE12 overhaul kits. Our engines are tested, packed, and ready for export worldwide with OEM or equivalent quality assurance.

If you’re looking for a reliable diesel engine solution, the Doosan DE12 is a time-tested choice for powering your machines with strength and consistency.