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.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .