Product Overview

This high-quality diesel fuel injection pump head rotor is a critical component for maintaining precise fuel delivery in heavy-duty diesel engines. Designed as a direct replacement for Bosch-type PES6A injection pumps, this rotor (part numbers 7139-360U and 7180-560U) ensures optimal engine performance, fuel efficiency, and reliability. Our company, based in Shandong, China, specializes in manufacturing and globally distributing premium diesel engine parts. We serve a wide range of international markets, including North America, Europe, Southeast Asia, the Middle East, and Africa, providing fast and reliable shipping to major ports and industrial centers worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications for a perfect fit and seamless operation in Bosch PES6A fuel injection pumps.
• Superior Durability: Constructed from high-grade alloy steel and hardened for exceptional wear resistance, ensuring a long service life even under high-pressure conditions.
• Enhanced Fuel Efficiency: The precise rotor geometry ensures accurate fuel metering and injection timing, leading to improved combustion and reduced fuel consumption.
• Reliable Performance: Each unit undergoes rigorous testing for hydraulic balance, dimensional accuracy, and material integrity to guarantee consistent performance.
• Cost-Effective Solution: A direct replacement for original parts, offering a significant cost saving without compromising on quality or reliability.

Technical Specifications

OEM Cross-Reference

This head rotor is a direct replacement for the following original equipment manufacturer (OEM) part numbers:

• 7139-360U
• U7180-560U

Note: This part is designed for use with rotor number 189U and is commonly used in 6-cylinder or 9-cylinder pump configurations (6/9R). It is a critical component for Bosch PES6A type fuel injection pumps.

Compatibility

This head rotor is specifically designed for use in Bosch PES6A series fuel injection pumps found in a variety of heavy-duty diesel engines. Common applications include:

• Engine Models: Diesel engines utilizing Bosch PES6A inline injection pumps.
• Vehicle Applications: Trucks, buses, construction machinery, agricultural tractors, and industrial diesel engines.
• Note: Please verify your pump model (e.g., PES6A) and existing rotor number (189U) to ensure complete compatibility before ordering.

Global Supply & Distribution

We offer comprehensive global logistics to support B2B customers worldwide. Our supply chain is optimized for speed and reliability:

• Worldwide Shipping: We ship to all major continents including North America, South America, Europe, Asia, Africa, and Oceania.
• Major Markets Served: United States, Canada, Germany, UK, France, Australia, Japan, South Korea, UAE, Saudi Arabia, South Africa, and more.
• Fast Delivery: We maintain stock for immediate dispatch. Delivery to major ports (e.g., Rotterdam, Los Angeles, Shanghai, Hamburg) typically takes 7-15 working days via sea or air freight.
• Export Expertise: With years of international trade experience, we handle all customs documentation and compliance requirements for smooth cross-border transactions.

Quality Assurance

We are committed to delivering parts that meet or exceed OEM standards. Our quality assurance process includes:

• Manufacturing Standards: Produced in ISO 9001 certified facilities using advanced CNC machining and heat treatment processes.
• Testing: Each head rotor is individually inspected for dimensional accuracy, surface finish, and hydraulic performance.
• Warranty: We offer a 4-month warranty against manufacturing defects from the date of purchase, providing you with peace of mind.

FAQ

Q: How do I know if this head rotor (7139-360U / 7180-560U) is compatible with my injection pump?

A: This rotor is designed for Bosch PES6A type inline fuel injection pumps. The most critical check is the rotor number: your pump must use rotor number 189U. You can verify this by removing the pump cover and checking the number stamped on the side of the existing rotor. If your pump uses a different rotor number, this part will not fit.

Q: What are the key steps for installing a new head rotor?

A: Installation should be performed by a qualified diesel technician. The general process involves: 1) Removing the injection pump from the engine and disassembling it in a clean environment. 2) Carefully removing the old rotor and drive shaft. 3) Cleaning all components thoroughly. 4) Installing the new rotor, ensuring proper timing alignment with the pump housing. 5) Reassembling the pump and recalibrating it on a test bench to verify fuel delivery and timing. Improper installation can lead to engine damage.

Q: What maintenance is recommended for this head rotor to ensure maximum lifespan?

A: The longevity of the head rotor is heavily dependent on fuel quality. Always use clean, high-quality diesel fuel and replace fuel filters at the manufacturer’s recommended intervals. Contaminants in the fuel are the primary cause of premature rotor and pump wear. Additionally, ensure the injection pump is properly lubricated by the engine oil or fuel, depending on the pump design. Regular inspection of the pump for leaks and unusual noise is also recommended.