Komatsu PC120-5 4D95 Radiator 203-03-56120 203-03-59610 Excavator Engine Parts

Product Details

Product Overview

This high-quality radiator, identified by OEM part numbers 203-03-56120 and 203-03-59610, is specifically designed for the cooling system of the Komatsu PC120-5 excavator equipped with the 4D95 diesel engine. As a critical component for engine temperature regulation, this radiator ensures optimal heat dissipation, preventing overheating and maintaining peak performance during demanding excavation and earthmoving operations.

Manufactured from durable alloy steel, this radiator is built to withstand the harsh conditions of construction and industrial environments. It is a direct replacement part, offering a reliable and cost-effective solution for maintaining your Komatsu machinery’s cooling efficiency. Whether you are servicing a fleet of excavators or performing a one-time repair, this component provides the fit, form, and function required for dependable operation.

Key Features & Benefits

• Precision Fitment: Engineered as a direct replacement for Komatsu PC120-5 excavators with 4D95 engines, ensuring a seamless installation without modifications.
• OEM Cross-Reference Verified: Directly compatible with original equipment part numbers 203-03-56120 and 203-03-59610, guaranteeing the correct specifications.
• Durable Alloy Steel Construction: Built from robust alloy steel to resist corrosion, vibration, and thermal stress, providing long service life in tough job site conditions.
• Optimal Cooling Performance: Designed to efficiently dissipate heat from the diesel engine, preventing overheating and extending engine life.
• Rigorous Quality Testing: Each unit undergoes a machinery test report and video outgoing inspection to ensure defect-free performance before shipping.
• 6-Month Warranty: Backed by a 6-month warranty, giving you confidence in the product’s reliability and our commitment to quality.
• Versatile Application: While primarily for the PC120-5 excavator, this radiator is also commonly used in other heavy equipment like loaders, bulldozers, and forklifts powered by the 4D95 engine.

Technical Specifications

OEM Cross-Reference

This radiator is a direct replacement for the following original Komatsu part numbers:

• 203-03-56120 (Primary OEM Number)
• 203-03-59610 (Alternative OEM Number)

These numbers are stamped on the original Komatsu component. Please verify your existing part number matches one of the above to ensure compatibility. If your part number is not listed, contact our technical support team for assistance with cross-referencing.

Compatibility

This radiator is commonly used for the following equipment:

• Excavators: Komatsu PC120-5
• Engines: Komatsu 4D95 diesel engine
• Other Applications: This cooling component may also be found in loaders, bulldozers, forklifts, trucks, and buses that utilize the same 4D95 engine platform. Always verify fitment against your specific machine’s OEM part number before purchase.

Global Supply & Distribution

We provide worldwide shipping for this Komatsu radiator, ensuring fast and reliable delivery to any major industrial hub. Our logistics network covers key markets including:

• North America: Regular shipments to ports in the USA, Canada, and Mexico.
• Europe: Efficient delivery to distribution centers in Germany, the Netherlands, the UK, and France.
• Asia-Pacific: Rapid shipping to Japan, South Korea, Australia, Singapore, and Southeast Asia.
• Middle East & Africa: Reliable service to UAE, Saudi Arabia, South Africa, and other key markets.
• Latin America: Consistent delivery to Brazil, Chile, and Argentina.

We maintain strong export experience and comply with international trade regulations. All orders are packed securely in neutral packaging to ensure safe transit. Bulk and wholesale orders are welcome, with expedited shipping options available for urgent requirements.

Quality Assurance

Our Komatsu PC120-5 radiators are manufactured under strict quality control standards in our ISO-compliant facility in Guangdong, China. Each unit undergoes the following quality procedures:

• Video Outgoing Inspection: A full visual and functional inspection is recorded and provided upon request.
• Machinery Test Report: Performance testing is conducted to verify cooling efficiency and pressure integrity.
• Material Verification: Alloy steel composition is checked for durability and corrosion resistance.

We stand behind the quality of our parts with a 6-month warranty against manufacturing defects. If any issues arise during the warranty period, we offer a hassle-free replacement or refund process. Our technical team is available to answer any questions regarding installation or fitment.

FAQ

Q1: How do I confirm this radiator fits my Komatsu PC120-5 excavator?
A: The best way to confirm fitment is to locate the part number on your existing radiator. It should be stamped on the metal core or tank. If it reads 203-03-56120 or 203-03-59610, this radiator is a direct replacement. If your number differs, please send us a photo of the old part for cross-referencing.

Q2: Does this radiator come with the coolant reservoir cap or fan shroud?
A: No, this listing is for the radiator core and tanks only. It does not include the cap, fan shroud, or hoses. We recommend reusing your existing components or purchasing new ones separately to ensure a complete cooling system overhaul.

Q3: What maintenance is recommended after installing this new radiator?
A: After installation, fill the system with the correct coolant mixture (typically 50/50 water and ethylene glycol). Run the engine to operating temperature and check for leaks around the hose connections. We recommend flushing the cooling system every 2 years or 2,000 hours to prevent scale buildup and maintain optimal heat transfer.