6D114 PC300-7 High Pressure Pipe 6743-71-5510 6743-71-5520 for Komatsu Engine Parts

Product Details

Product Overview

This high-pressure fuel pipe assembly is specifically designed for the Komatsu 6D114 diesel engine, commonly used in the PC300-7 excavator model. The set includes two critical fuel delivery lines with part numbers 6743-71-5510 and 6743-71-5520, which are essential for maintaining proper fuel injection pressure and engine performance.

Manufactured to OEM specifications, these high-pressure pipes ensure precise fuel delivery from the injection pump to the injectors. While primarily designed for the Komatsu 6D114 engine in PC300-7 applications, this component may also be compatible with other heavy machinery utilizing the same engine platform. We recommend verifying fitment with your equipment’s parts manual before installation.

As a critical component in the fuel injection system, this high-pressure pipe set is engineered to withstand extreme operating pressures and temperatures common in diesel engine applications. The parts are sourced from Guangdong, China, with options for both aftermarket (brand) and genuine OEM equivalents available upon request.

Key Features & Benefits

• Precision Fuel Delivery: Engineered to maintain consistent high-pressure fuel flow for optimal combustion efficiency and engine power output
• OEM-Spec Dimensions: Manufactured to exact OEM size specifications for seamless installation without modification
• Durable Construction: Built from high-grade steel alloy to withstand repeated pressure cycles and resist fatigue failure
• Complete Set: Includes both 6743-71-5510 and 6743-71-5520 pipes for comprehensive fuel line replacement
• Application Versatility: Suitable for construction, industrial, agricultural, genset, marine, and material handling equipment applications
• Quality Tested: Each unit undergoes outgoing inspection with video documentation available upon request

Technical Specifications

OEM Cross-Reference

This high-pressure pipe set corresponds to the following OEM and aftermarket part numbers:

• Komatsu OEM: 6743-71-5510 (Pipe, Fuel Injection No.1)
• Komatsu OEM: 6743-71-5520 (Pipe, Fuel Injection No.2)
• Aftermarket: HP-6D114-PC300-7

Note: Always verify your specific equipment’s part requirements before ordering. Cross-reference with your machine’s serial number when possible.

Compatibility

This high-pressure pipe set is commonly used for the following applications:

• Primary Application: Komatsu PC300-7 hydraulic excavator
• Engine Platform: Komatsu 6D114 diesel engine
• Secondary Applications: Other heavy equipment utilizing the 6D114 engine, including certain models of Komatsu bulldozers, wheel loaders, and industrial machinery

Compatible Equipment Types: Construction machinery, industrial equipment, agricultural tractors, generator sets, marine propulsion systems, and material handling equipment

Global Supply & Distribution

We maintain comprehensive global shipping capabilities to serve B2B buyers worldwide. Our distribution network ensures fast, reliable delivery to major industrial centers across:

• North America: Regular shipments to ports in Los Angeles, Houston, New York, Vancouver, and Toronto
• Europe: Direct delivery to Rotterdam, Hamburg, Antwerp, and major inland logistics hubs
• Asia-Pacific: Express shipping to Singapore, Shanghai, Tokyo, Sydney, and Dubai
• Middle East & Africa: Service to Jebel Ali, Dammam, Johannesburg, and Lagos
• Latin America: Coverage for Santos, Callao, and Manzanillo ports

With established export documentation procedures and customs compliance expertise, we ensure smooth international transactions for wholesale buyers, distributors, and equipment dealers.

Quality Assurance

Our high-pressure pipes undergo rigorous quality control procedures to ensure reliable performance in demanding conditions:

• Manufacturing Standards: Produced in ISO-certified facilities following strict quality management systems
• Testing Protocol: Each pipe is pressure-tested to verify structural integrity and leak-free operation
• Inspection Documentation: Video outgoing inspection available for every order to confirm product condition before shipping
• Machinery Test Reports: Provided upon request to demonstrate performance characteristics
• Warranty Coverage: 6-month warranty against manufacturing defects in materials and workmanship

FAQ

Q: Will these high-pressure pipes fit my Komatsu PC300-7 excavator with a 6D114 engine?
A: These pipes (6743-71-5510 and 6743-71-5520) are specifically designed for the Komatsu 6D114 diesel engine platform, which powers the PC300-7 excavator. We recommend verifying your machine’s serial number and comparing with the OEM parts catalog to confirm exact compatibility, as there may be slight variations between production years.

Q: What is the recommended installation procedure for these high-pressure fuel pipes?
A: Installation should be performed by a qualified diesel technician. Key steps include: 1) Relieve fuel system pressure before removal, 2) Clean all connection points thoroughly, 3) Tighten connections to manufacturer torque specifications (typically 25-35 Nm for high-pressure fuel lines), 4) Prime the fuel system and check for leaks during engine operation. Always replace copper washers or sealing rings when installing new pipes.

Q: How can I distinguish between genuine OEM parts and aftermarket alternatives?
A: Genuine Komatsu parts will have OEM markings and packaging with specific serial number traceability. Our aftermarket options are manufactured to OEM specifications and offer comparable performance at a competitive price point. We recommend requesting our video inspection service to examine the parts before shipment. Both options include our 6-month warranty for your peace of mind.