Komatsu 6D125-5 Diesel Engine Loader Powertrain - Complete Engine For Construction Machinery
The 6D125-5 is a high-performance, reliable, and durable diesel engine suitable for various heavy-duty construction machinery and industrial equipment. It employs an advanced fuel injection system to achieve complete combustion, stable power output, and optimized fuel economy.
Komatsu 6D125-5 Diesel Engine Specifications
| State |
Brand New |
| Type |
6-cylinder diesel engine |
| Displacement |
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| Bore x Stroke |
125 mm × 150 mm |
| Power |
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| Speed |
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| Intake Method |
Turbocharging |
| Cooling Method |
Water-cooled |
| Operating Conditions |
Heavy-duty continuous operation |
| Minimum Order Quantity |
1 Unit |
| Payment Methods |
Western Union, T/T |
| Shipping Methods |
UPS / DHL / EMS / TNT / FedEx |
Application Areas: Construction Machinery / Building Equipment / Industrial Power
Compatible Equipment: Loaders, Excavators, Bulldozers, etc.
Features and Advantages
• High Reliability: Robust structure, supports long-term high-load operation
• Fuel Efficiency: Optimized fuel injection system, low fuel consumption and stable output
• Easy Maintenance: Simple replacement of standard consumables, low cost
• High Versatility: Ample spare parts, easier maintenance
Product Showcase
Close-up image of the Komatsu 6D125-5 high-pressure fuel injection system
Side view of the 6D125-5 diesel engine used in loader construction machinery

Guangzhou Minshun Machinery Equipment Co., Ltd.
We specialize in the sales and service of diesel engine assemblies and construction machinery parts. Our product line covers engine assemblies, filtration systems, electronic control components, hardware accessories, wiring harnesses, and electrical accessories. Our service area includes Canada, the United States, the United Kingdom, Mexico, the Netherlands, Kazakhstan, Mongolia, Russia, Australia, Malaysia, Turkey, Indonesia, Singapore, Thailand, South America, South Africa, and other countries and regions.
Our Product Range
| Engine Rebuild Kit |
Turbochargers |
Engine Diesel Pumps |
Engine Controllers (ECU) |
| Cylinder Blocks |
Cylinder Heads |
Water Pumps |
Injectors |
| Starter Motors |
Filters |
Other Engine Accessories |
Excavator Hydraulic Pumps |
| Swivel Components |
Distributor Valves |
Travel Motor Assemblies |
Chassis Components and Other Accessories |



Frequently Asked Questions
Q1: What is your main products?
A1: We are specialized in the excavator engine spare parts, for example Main cylinder block, cylinder head, crankshaft, Engine assembly, piston, cylinder liner, piston ring, camshaft, connecting rod, oil pump, water pump, valve series products, movement, etc. almost all parts of the entire engine.
Q2: If I only know the excavator model, but can not offer parts No., what should I do?
A2: If possible, you can send us pictures of old products, name plate or the size for reference.
Q3: Can you accept sample order?
A3: Yes sure. We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q4: Do you test all your goods before delivery?
A4: Yes, we have 100% test before delivery.
Q5: How can I do if there is something wrong with the items?
A5: Our products have been professionally tested and the quality is very stable. If you really found something wrong, please contacts. We have a professional after-sales team to help you solve the problem.
Q6: Besides selling 6D125-5 diesel engines, do you offer spare parts?Do you supply engine assemblies or spare parts?
A6: We can provide complete engine assemblies and individual parts according to your specific requirements.
Q7: Does the 6D125-5 engine support continuous high-load operation?
A7: Yes, the 6D125-5 engine supports continuous high-load operation; regular maintenance is recommended for optimal performance.