Product Overview

This premium remanufactured Diesel Fuel Pump Head Rotor is a critical component for high-performance fuel injection systems in heavy-duty excavator and industrial diesel engines. Designed to meet or exceed OEM specifications, this part ensures precise fuel metering and reliable engine operation. We ship globally, serving major markets including North America, Europe, Southeast Asia, the Middle East, and Oceania, with fast logistics to industrial hubs.

Key Features & Benefits

• Precision Engineering: Manufactured from high-speed steel for superior wear resistance and longevity in high-pressure fuel systems.
• 100% Professional Tested: Every unit undergoes rigorous performance and pressure testing to guarantee flawless operation.
• OEM Quality Fit: Remanufactured to original equipment specifications, ensuring a direct, bolt-on replacement without modifications.
• Enhanced Durability: Silver finish provides corrosion resistance, extending service life in harsh operating environments.
• Cost-Effective Solution: Offers remanufactured reliability at a fraction of the cost of a new OEM part, maximizing your ROI.

Technical Specifications

OEM Cross-Reference

This head rotor is a direct replacement for the following OEM part numbers, ensuring broad compatibility across various engine platforms:

• Primary Part: 146405-4420
• Cross-Reference Numbers: 146406-0620, 146406-0820, 146407-0020, 146408-0420, 146408-0620

Compatibility

Designed for use in high-pressure fuel injection pumps commonly found in:

• Engine Types: Heavy-duty diesel engines used in excavators, bulldozers, and industrial machinery.
• Vehicle/Equipment Brands: Suitable for major Japanese and Korean construction equipment manufacturers (e.g., Komatsu, Hitachi, Kobelco, Hyundai, Doosan) that utilize these specific pump rotor designs.

Global Supply & Distribution

We are an experienced exporter of diesel engine components, with a robust supply chain capable of delivering to any global destination.

• Worldwide Shipping: We offer fast, insured shipping via air, sea, and express courier (DHL, FedEx, UPS).
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Australia, Singapore, Japan, Korea), Middle East (UAE, Saudi Arabia), and Africa (South Africa, Nigeria).
• Fast Delivery: Inventory is ready for immediate dispatch from our central warehouse, with typical transit times of 5-10 business days to major industrial ports.
• Trade Compliance: We adhere to international trade standards, providing all necessary documentation for smooth customs clearance.

Quality Assurance

• Rigorous Testing: Each head rotor is 100% professionally tested for pressure integrity, dimensional accuracy, and performance prior to shipment.
• Warranty: Backed by a six-month warranty against manufacturing defects, ensuring your investment is protected.
• Material Integrity: Constructed from high-speed steel, heat-treated for maximum hardness and resistance to wear from fuel contaminants.

FAQ

Q1: Is this head rotor a direct bolt-on replacement, and what engines does it fit?
A: Yes, this is a direct, bolt-on replacement part. It is specifically designed for fuel injection pumps that use the 146405-4420 series rotor. It is commonly used in high-pressure pumps on heavy-duty diesel engines from Komatsu, Hitachi, and similar excavator brands. We recommend confirming your pump’s model number against our OEM cross-reference list before ordering.

Q2: What is the difference between a new and a remanufactured head rotor?
A: A remanufactured head rotor has been fully disassembled, cleaned, inspected, and rebuilt to meet OEM specifications. All worn components are replaced with new parts. This process provides the same performance and reliability as a new part but at a significantly lower cost. Each unit is 100% tested to ensure it meets factory performance standards.

Q3: How should I maintain this part once installed?
A: To ensure maximum service life, always use clean, high-quality diesel fuel and replace the fuel filter according to your engine manufacturer’s schedule. Ensure the fuel system is free of air and contaminants before operation. Regular inspection of the pump for leaks or unusual noise is recommended. Adhering to these practices will help the remanufactured rotor perform reliably for years.