Product Overview

This premium Remanufactured Diesel Fuel Injection Pump Head Rotor (also known as a Rotor Head) is a critical component for high-pressure fuel injection systems. Designed for demanding B2B applications, this part is engineered to restore your diesel engine’s performance and fuel efficiency. We supply this essential component globally, serving major markets including North America, Europe, Southeast Asia, the Middle East, and South America. With a focus on reliability and fast logistics, we ensure your operations stay productive.

Key Features & Benefits

• Precision Remanufacturing: Restored to OEM specifications for a perfect fit and reliable performance, offering a cost-effective alternative to new parts.
• 100% Professional Testing: Every unit undergoes rigorous testing to guarantee pressure integrity and operational stability before shipping.
• Durable Construction: Manufactured from High-Speed Steel to withstand the extreme pressures and wear within the injection pump.
• Enhanced Engine Performance: Ensures precise fuel metering and injection timing, leading to improved horsepower, fuel economy, and reduced emissions.
• Six-Month Warranty: Backed by a comprehensive warranty, providing confidence and security for your investment.

Technical Specifications

OEM Cross-Reference

This rotor head is a direct replacement for the following OEM part numbers. Please verify your existing part number for compatibility.

• 146403-6620 (Primary Number)
• 146403-4820
• 146403-4920
• 146403-6120

Compatibility

This fuel injection pump head rotor is designed for use in diesel engines that utilize the specified OEM components. It is commonly found in various heavy-duty industrial, agricultural, and construction equipment. While we cannot guarantee fitment for every model, it is typically compatible with engines using the listed injection pump configurations.

Global Supply & Distribution

We are a dedicated supplier to the international B2B market, offering streamlined logistics and reliable shipping to keep your supply chain moving.

• Worldwide Shipping: We ship to all major global destinations via air, sea, and express couriers (DHL, FedEx, UPS, TNT).
• Major Markets Served: Our parts are supplied to North America, Europe, Southeast Asia (including Indonesia, Thailand, Vietnam), the Middle East (UAE, Saudi Arabia), Africa, and South America.
• Fast Delivery: We prioritize quick dispatch and efficient routing to major ports and industrial hubs to minimize downtime.
• Export Expertise: We have extensive experience in international trade and customs compliance, ensuring a smooth transaction process.

Quality Assurance

• 100% Professional Tested: Each head rotor is individually tested for hydraulic function, pressure holding, and dimensional accuracy.
• Certified Process: Our remanufacturing process follows strict quality control guidelines to ensure every part meets or exceeds OEM performance standards.
• Warranty: All products come with a standard 6-month warranty against manufacturing defects.

FAQ

Q: How do I know if this head rotor is compatible with my fuel injection pump?
A: Please check the OEM number stamped on your existing head rotor or your injection pump. This part is a direct replacement for the numbers listed: 146403-6620, 146403-4820, 146403-4920, and 146403-6120. If your number is not listed, please contact us with your engine and pump model for verification.

Q: What is the difference between a new and a remanufactured head rotor?
A: A remanufactured part is a used core that has been completely disassembled, cleaned, inspected, and rebuilt to meet OEM specifications. It offers the same performance and reliability as a new part but at a significantly lower cost. Our remanufactured units are 100% tested to ensure they function like new.

Q: What is the recommended installation procedure for this part?
A: Installation should be performed by a qualified diesel technician. It is critical to ensure absolute cleanliness during installation to prevent contamination. The rotor head must be properly lubricated with clean diesel fuel or assembly lubricant during installation. We also recommend replacing the drive shaft seal and other internal seals of the injection pump at the same time for optimal performance and longevity.