Basic Info.
Part no. | Cylinder Block 6150-21-1103/6151-25-1302 | Material | Iron |
Type | Cylinder Block | Weight | |
Engine No. | 6D125-5(s) | Transport Package | Wooden Box |
Trademark | DIRON | Origin | Luoyang City |
HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Item Model:Block 6150-21-1103/6151-25-1302
- Date First Listed:2024/12/13
- Manufacturer:Diron Parts
Product Description
- Part Number:Block 6150-21-1103/6151-25-1302
- Part Type:Cylinder Block
- Compatible Equipment:6D125-5(s)Diesel Engine suitable for Komatsu excavator PC400-5

The Cylinder Block 6150-21-1103 is a key component for Komatsu’s 6D125 series engines, including models such as the 6D125-1A, 6D125-1AB, 6D125-1AF, and others. This cylinder block is specifically designed to fit heavy-duty applications, including construction and industrial machinery, where Komatsu engines are widely used.
Key Features:
- Compatibility: This cylinder block is compatible with various configurations of the 6D125 engine series, making it a versatile choice for maintaining or rebuilding these engines.
- Material Quality: Manufactured using high-grade cast iron or alloy materials to withstand high pressures and temperatures typically encountered in heavy-duty operations.
- Design Precision: Engineered with exact tolerances to ensure proper alignment and sealing with engine components like pistons, liners, and gaskets, promoting optimal engine performance and durability.
Applications:
The cylinder block is primarily used in Komatsu heavy machinery, such as bulldozers, excavators, and loaders, powered by the 6D125 engines. These engines are known for their reliability and performance in demanding environments.
Manufacturer and Warranty:
The part is available from multiple suppliers, such as DIRONPARTS. These manufacturers ensure rigorous quality checks to match Caterpillar standards. Warranty coverage for this part usually extends up to 12 months under normal operating conditions, reflecting its dependability in field use.
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ABOUT DIRON
- Factory OF DIRON
Diron Parts Group Have Its Own Factory Ensure That We Offer Better Price For Customers. Besides, Diron Corporate With Some Reliable Principal Manufacturers, So Diron Also Supply Customer Other Quality Spare Parts.








- Team OF DIRON
With 18 years of manufacturing and exporting experience, Diron has a team of knowledgeable engineers, inspectors and technical workers, sales staff, after-sales personnel.


- Products OF DIRON
As a distributor, we supply parts covers for :Complete engines, Long block, Short block, Engine spare parts, Electricla products, Hydraulic products, Transmission products, Undercarridge products.Among them, Cylinder head, Cylinder block, Spacer-plate, Bushing & Pin are our best-selling products.







