Product Overview

This is a high-quality, remanufactured fuel injection pump head rotor, designed for precision fuel delivery in heavy-duty diesel engines. Sourced from a leading Chinese manufacturer, this component is a direct replacement for OEM numbers 146403-7420, 146403-7920, 146403-8720, and 146403-9620. We serve a global B2B clientele, with major markets in North America, Europe, Southeast Asia, and the Middle East. All units are shipped from our central warehouse with professional packaging to ensure safe international transit.

Key Features & Benefits

• 100% Professional Testing: Each unit undergoes rigorous performance and pressure testing to ensure reliable fuel metering and injection timing.
• High-Speed Steel Construction: Manufactured from durable high-speed steel for superior wear resistance and extended service life in high-pressure applications.
• Precision Remanufacturing: Restored to OEM specifications, offering a cost-effective alternative to new parts without compromising on quality.
• Corrosion-Resistant Finish: Silver finish provides protection against fuel corrosion and environmental factors.
• Standardized Weight & Dimensions: Engineered to exact factory tolerances for seamless installation and consistent performance.

Technical Specifications

OEM Cross-Reference

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

• 146403-7420
• 146403-7920
• 146403-8720
• 146403-9620

Note: This part is designed for diesel engine fuel injection pumps. It is not a universal injector; it is the internal rotor assembly for the pump head.

Compatibility

This head rotor is a critical internal component for fuel injection pumps used in a wide range of diesel engines. While the OEM numbers are the primary identifier for fitment, this part is commonly used in:

• Heavy-duty truck engines
• Construction machinery diesel engines
• Agricultural tractor engines
• Industrial generator sets

Important: Always cross-reference the OEM number on your existing pump head rotor before purchasing. This part is specific to the injection pump assembly, not the engine model directly.

Global Supply & Distribution

We provide efficient global logistics to support B2B procurement needs. Our distribution network ensures fast and reliable delivery to major industrial centers worldwide.

• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, Poland), Asia-Pacific (Japan, South Korea, Australia, Singapore), Middle East (UAE, Saudi Arabia, Qatar).
• Shipping: We offer sea freight (FOB/CIF) and air express (DHL, FedEx, UPS) options. Bulk orders ship from our main port in Shanghai or Ningbo.
• Packaging: Neutral packing with foam protection ensures the part arrives in perfect condition. Custom branding and packaging are available for volume orders.
• Compliance: Our export processes comply with international trade standards, ensuring smooth customs clearance.

Quality Assurance

Our commitment to quality ensures that every remanufactured part meets or exceeds OEM performance standards.

• Testing: Every head rotor is 100% professionally tested for pressure integrity, dimensional accuracy, and flow rate.
• Certification: Manufacturing processes follow ISO quality management principles.
• Warranty: We offer a standard 6-month warranty against manufacturing defects. Extended warranty options are available for bulk or contract orders.
• Traceability: Each part is serialized for full traceability back to its production batch and test results.

FAQ

Q1: Is this part a direct replacement for the original pump head rotor?
Yes. This remanufactured head rotor is machined to the exact OEM specifications for part numbers 146403-7420, 146403-7920, 146403-8720, and 146403-9620. It is a direct, drop-in replacement requiring no modifications.

Q2: What are the signs that my head rotor needs replacement?
Common failure symptoms include engine misfiring, hard starting, black smoke from the exhaust, poor fuel economy, and a noticeable loss of power. A worn head rotor can also cause erratic fuel pressure readings. We recommend professional diagnosis before replacement.

Q3: Do you provide installation instructions or technical support?
We provide basic technical support via email. However, installation of internal fuel injection pump components is complex and should only be performed by a qualified diesel mechanic using the correct service manual. Improper installation can damage the pump and engine.

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 .