Product Overview

This premium replacement cylinder block is engineered for the Komatsu 4D95 diesel engine, providing a critical foundation for engine overhauls and rebuilds. Designed to meet or exceed OEM specifications, it is a direct fit for a range of industrial and mobile applications. We supply this high-demand component globally, with established logistics to major markets including North America, Europe, the Middle East, Asia-Pacific, and Africa, ensuring reliable delivery for workshops, machinery dealers, and fleet operators.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM dimensions and tolerances, ensuring perfect fitment and optimal engine performance restoration.
• Superior Durability: Constructed from high-grade cast iron alloy, providing exceptional strength and wear resistance for extended service life under heavy loads.
• Comprehensive Compatibility: Direct replacement for multiple OEM part numbers, simplifying inventory and procurement for repair businesses.
• Rigorously Tested: Each block undergoes stringent machining checks and quality inspections, supported by machinery test reports and video documentation.
• Global Readiness: Professionally packed for international sea and air freight, ensuring secure arrival at ports and industrial hubs worldwide.

Technical Specifications

OEM Cross-Reference

This cylinder block is a direct interchange for the following genuine Komatsu part numbers:

• Komatsu: 6204-21-1102
• Komatsu: 6204-21-1503
• Komatsu: 6205-23-1300

Note: Always verify the specific part number from your original engine or service manual before ordering.

Compatibility

This cylinder block is designed specifically for the Komatsu 4D95 series diesel engine. This engine is commonly found in a wide range of Komatsu equipment, including:

• Application Industries: Construction, Industrial Machinery, Agriculture, Power Generation (Gensets), Marine, and Material Handling.
• Potential Equipment: Excavators, Wheel Loaders, Dozers, Forklifts, Industrial Pumps, and Generator Sets powered by the 4D95 engine.

For precise application, confirm the engine model number stamped on your existing engine block.

Global Supply & Distribution

We are a specialist exporter of heavy-duty engine components with a robust supply chain designed for international B2B trade.

• Worldwide Shipping: We ship via air, sea (LCL/FCL), and land freight to destinations globally.
• Major Markets Served: We have extensive experience supplying to North America (USA, Canada, Mexico), the European Union, the United Kingdom, Australia, the Middle East (UAE, Saudi Arabia), Southeast Asia, and South America.
• Efficient Logistics: We ensure fast delivery to major ports like Los Angeles, Rotterdam, Singapore, Dubai, and Sydney, with reliable partners for inland forwarding.
• Trade Compliance: All documentation (Commercial Invoice, Packing List, Certificate of Origin) is provided to ensure smooth customs clearance.

Quality Assurance

Our commitment to quality ensures you receive a reliable, performance-ready component.

• Manufacturing Standards: Produced in ISO-certified facilities using advanced casting and CNC machining processes.
• Verification & Reports: Each part is backed by a machinery test report. Video outgoing-inspection is available upon request for quality verification.
• Warranty: Backed by a 6-month warranty against manufacturing defects.
• Post-Sale Support: After-warranty online technical support is available for installation and application queries.

FAQ

Q1: How can I confirm this cylinder block will fit my specific Komatsu machine?
A: The most accurate method is to match the part number. Locate the part number on your original, failed cylinder block (e.g., 6204-21-1102) or refer to your equipment’s official service parts manual for the 4D95 engine. Cross-reference it with the part numbers listed in the OEM Cross-Reference section above.

Q2: Is this block supplied as a bare casting, or is it machined and ready for assembly?
A: This is a fully machined cylinder block, ready for installation. It includes precision-bored cylinder liners (if applicable per OEM design), machined decks, and all critical oil and coolant passages finished to specification. It is supplied as a core component for a complete engine rebuild.

Q3: What should I check upon receipt of the part, and what is included in the packaging?
A: Upon receipt, inspect the packaging for any signs of severe damage. Remove the block and check for any visible shipping damage to critical machined surfaces. The block is protected with anti-rust oil and wrapped, then secured in an export-grade carton. Basic gaskets or seals are not typically included unless specified; please order a full gasket kit separately for your rebuild.

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 .