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Komatsu 6D125-3 Diesel Engine High Power Durable Efficient for Heavy Construction Mining and Industrial Equipment
The Komatsu 6D125-3 is a heavy‑duty inline six‑cylinder water‑cooled diesel engine with turbocharging and direct injection. It delivers strong torque, stable power, and outstanding durability for large excavators, bulldozers, and industrial machinery. Built with robust components and reliable fuel systems, it ensures long service life, low maintenance cost, and consistent performance in harsh working environments.
Specifications
Item
Details
Engine Type
Inline 6 Cylinder 4 Stroke Water Cooled Diesel
Displacement
11.04 L
Bore x Stroke
125 mm × 150 mm
Compression Ratio
15.5:1
Rated Power
206 kW (280 HP) @ 2000 rpm
Aspiration
Turbocharged Aftercooled
Fuel System
Direct Injection
Key Advantages
Strong low‑speed torque for heavy digging and pushing tasks
High structural durability for long‑hour continuous operation
Efficient direct injection reduces fuel consumption
Simple design for easy maintenance and repair
Widely available parts lower operating cost
Excellent adaptability to harsh working conditions
Perfect OEM match for Komatsu heavy equipment
Typical Applications
Komatsu PC400 and PC450 series excavators
D65 and other large crawler dozers
Heavy‑duty construction machinery
Mining equipment and material handling machines
Industrial generator sets and pump units
Large loader and crusher power systems
FAQs
What type of engine is the Komatsu 6D125-3
It is an inline 6 cylinder 4 stroke turbocharged aftercooled direct injection diesel engine
What is the displacement of the 6D125-3
Displacement is 11.04 liters
What is the rated power output
It delivers 206 kW 280 HP at 2000 rpm
Which machines use the 6D125-3 engine
It is widely used in Komatsu PC400 PC450 excavators D65 bulldozers and other heavy equipment
Is this engine durable and reliable
Yes it features heavy duty design and high quality components for long service life under harsh conditions
Are spare parts easy to source
Yes parts are widely available globally with low maintenance cost.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Exporter,Manufacturer
Year Established:
2008
Total Annual:
5000000-10000000
Employee Number:
101~200
Ecer Certification:
Verified Supplier
Located in the Fuyong Huabang Excavator Parts Wholesale Department in Bao'an District, Shenzhen, it is a professional excavator parts supplier in China.We offer a range of excavator parts, including hydraulic pumps, control valves, main reducers, swing motors, engine assemblies, and other crucial co... Located in the Fuyong Huabang Excavator Parts Wholesale Department in Bao'an District, Shenzhen, it is a professional excavator parts supplier in China.We offer a range of excavator parts, including hydraulic pumps, control valves, main reducers, swing motors, engine assemblies, and other crucial co...