Product Overview

This is a premium replacement cylinder block engineered for Komatsu heavy machinery diesel engines. Designed as a direct OEM substitute, it ensures the structural integrity and performance of your Komatsu equipment. We specialize in global B2B supply, serving major industrial markets across North America, Europe, the Middle East, and Asia-Pacific with reliable logistics and export compliance.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications and tolerances for a guaranteed fit and optimal engine performance.
• Superior Durability: Constructed from high-grade materials to withstand extreme pressures and thermal stresses in demanding construction environments.
• Restored Engine Performance: Provides a solid foundation for engine rebuilds, ensuring proper alignment for crankshafts, pistons, and cylinder heads.
• Cost-Effective Solution: Offers a reliable alternative to costly OEM parts, minimizing equipment downtime and total repair costs.
• Comprehensive Support: Backed by machinery test reports and video outgoing-inspection documentation for quality verification.

Technical Specifications

OEM Cross-Reference

This cylinder block is a direct replacement for the following OEM part numbers:

• Primary Part Number: Komatsu 6154-21-1100
• Associated Engine Family: 6D125, 6D125-3E

Compatibility

This part is specifically designed for the following applications:

• Engine Model: Komatsu 6D125-3E Diesel Engine
• Primary Machinery Application: Komatsu PC400-7 Hydraulic Excavator
• Additional Compatible Machinery: Suitable for other Komatsu equipment utilizing the 6D125-3E powerplant, including certain Loaders and Bulldozers. Please verify your specific machine model before ordering.

Global Supply & Distribution

We are a trusted partner for heavy equipment parts distributors and repair workshops worldwide. Our established supply chain ensures efficient delivery to major industrial hubs and ports.

• Worldwide Shipping: We export to all major markets, including North America (USA, Canada), Europe (UK, Germany, Netherlands), the Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore), and South America.
• Fast Logistics: We work with leading freight forwarders to offer competitive sea and air freight options to key destinations like Los Angeles, Rotterdam, Dubai, and Sydney.
• Export Expertise: All shipments are handled with professional documentation, including commercial invoices, packing lists, and certificates of origin, ensuring smooth customs clearance.

Quality Assurance

Our commitment to quality ensures you receive a reliable and durable component.

• Manufacturing Standards: Produced in ISO-certified facilities using advanced casting and machining processes that meet or exceed original specifications.
• Rigorous Inspection: Each block undergoes stringent quality checks, including dimensional verification and surface finish analysis. Machinery test reports and video evidence of outgoing inspections are available.
• Warranty: Protected by a 6-month warranty against manufacturing defects, providing peace of mind for your business.

FAQ

Q1: Is this cylinder block a direct bolt-on replacement for my Komatsu PC400-7 excavator?
A1: Yes. This cylinder block (Part# 6154-21-1100) is manufactured to the exact OEM dimensions and specifications for the Komatsu 6D125-3E engine used in the PC400-7 model. It is designed as a direct replacement, requiring no modifications for proper fitment.

Q2: What core components should I check or replace when installing this new cylinder block?
A2: During an engine rebuild, we highly recommend inspecting and potentially replacing associated components such as cylinder liners (if applicable), main bearing caps and bolts, core plugs, and the oil gallery plugs. Using a new gasket set and ensuring all mating surfaces are clean is critical for a successful installation.

Q3: Do you provide the necessary documentation for international customs clearance?
A3: Absolutely. As experienced B2B exporters, we supply all standard international trade documents, including a detailed commercial invoice, packing list, and a certificate of origin. This facilitates a smooth customs process for our buyers worldwide.

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 .