
Product Overview
This is a premium replacement cylinder head assembly engineered for Komatsu 6D125 series diesel engines, specifically the 6D125-8 model. Designed for durability and performance, it is an essential component for restoring engine compression and power in heavy-duty Komatsu excavators. We supply this high-quality part globally, with established distribution to major industrial markets in North America, Europe, the Middle East, and Asia-Pacific, ensuring reliable support for your fleet maintenance needs.
Key Features & Benefits
- Precision Engineering: Manufactured to exact OEM specifications for a perfect fit and optimal performance, ensuring seamless integration with the 6D125-8 engine block.
- Premium Material: Constructed from high-grade, heat-treated cast iron alloy for superior strength, thermal stability, and resistance to warping under extreme operating conditions.
- Complete Assembly Readiness: Delivered as a fully assembled unit with pre-installed valve guides and seats, reducing installation time and labor costs for faster equipment turnaround.
- Enhanced Durability: Precision-machined combustion chambers and ports promote efficient airflow and fuel combustion, contributing to restored engine power and long-term reliability.
- Global Compliance: Produced in facilities adhering to international quality management standards, ensuring a reliable part suitable for demanding applications worldwide.
Technical Specifications
| Specification | Detail |
|---|---|
| Core Part Number | 6150-11-1100 |
| Compatible Engine Model | Komatsu 6D125-8 |
| Application | Komatsu PC400-8 Excavator |
| Primary Material | High-Strength Cast Iron Alloy |
| Condition | New, Aftermarket Replacement |
| Assembly Type | Complete Head (Valve guides & seats installed) |
OEM Cross-Reference
This cylinder head directly replaces the following OEM part numbers:
- Komatsu: 6150-11-1100
- Komatsu: 6150-11-1101
- Komatsu: 6150-11-1102
These numbers may correspond to different production batches or minor revisions, all of which are fully compatible with the 6D125-8 engine.
Compatibility
Primary Engine Application:
- Komatsu 6D125-8 Diesel Engine
Primary Machine Application:
- Komatsu PC400-8 Hydraulic Excavator
This part is designed for models utilizing the 6D125-8 powerplant. Always verify your engine serial number against the machine’s service documentation to ensure correct fitment before purchase.
Global Supply & Distribution
We are a trusted global supplier for heavy machinery parts, facilitating seamless international trade. Our logistics network ensures efficient shipping to all major ports and industrial hubs.
- Worldwide Shipping: Available via air and sea freight to all continents.
- Key Markets Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Australia, Southeast Asia, Middle East (UAE, Saudi Arabia), and South America.
- Fast Delivery: Consolidated shipments to major logistics centers like Rotterdam, Los Angeles, Singapore, and Dubai enable reduced transit times.
- Export Expertise: All documentation, including commercial invoices, packing lists, and certificates of origin, is prepared to ensure smooth customs clearance worldwide.
Quality Assurance
- Manufacturing Standards: Produced in ISO-certified facilities using advanced CNC machining and quality control protocols.
- Rigorous Testing: Each unit undergoes dimensional inspection, pressure testing, and surface finish verification to meet or exceed performance benchmarks.
- Warranty: Backed by a standard 12-month warranty against manufacturing defects, providing peace of mind for your investment.
FAQ
Q1: Is this cylinder head a direct bolt-on replacement for my Komatsu PC400-8 excavator?
A: Yes, this cylinder head is engineered as a direct OEM replacement for the Komatsu 6D125-8 engine in the PC400-8 model. It includes all necessary machining and pre-installed components for a proper fit. We recommend replacing the head gasket and bolts as standard practice during installation.
Q2: What is the difference between part numbers 6150-11-1100, 6150-11-1101, and 6150-11-1102?
A: These are sequential OEM part numbers from Komatsu, typically indicating minor revisions or updates in the manufacturing process (such as material sourcing or machining tolerances). This replacement head is designed to be compatible with all three numbers, superseding the earlier versions for the 6D125-8 engine.
Q3: Do you provide technical support for installation and troubleshooting?
A: Yes, we provide basic technical data sheets and installation guidelines with the product. For complex troubleshooting, we recommend consulting the official Komatsu service manual or a certified heavy equipment mechanic to ensure proper torque sequences and post-installation procedures are followed.
Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
Exhibition

Packing&Shipping

1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ
Q1. What is your company major products?
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
Q2.What is the MOQ?
A: Normally we can supply any quantity if we have in stock.
Q3. What is your payment term ?
A: We accept Western Union, T/T, Paypal.
Q4. What is the packing ?
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
Q5. When can you deliver products after payment ?
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
Q6. What can you do to complete order perfectly ?
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .