Product Overview

This high-performance VE type diesel fuel injection pump rotor head is a critical component for the fuel injection system of your Mitsubishi 4D55 engine. Designed as a direct replacement for OEM parts 146400-4520 and 9 461 620 956, this rotor head ensures precise fuel metering and reliable engine performance. We supply this essential part globally to markets in North America, Europe, Southeast Asia, the Middle East, and Africa, serving B2B clients including auto parts distributors, diesel repair shops, and fleet maintenance centers.

Key Features & Benefits

• Precision Engineering: Manufactured to standard size and OEM specifications for a perfect fit and seamless replacement of your old VE pump rotor head.
• High-Performance Material: Constructed from durable materials to withstand high pressure and constant operation, ensuring long service life in demanding diesel engines.
• Enhanced Fuel Efficiency: Optimized design promotes efficient fuel atomization and injection timing, helping to reduce fuel consumption and emissions.
• Reliable Operation: Each unit is tested to ensure consistent performance, providing reliable starting and smooth power delivery for your 4-cylinder diesel engine.
• Plug-and-Play Replacement: Designed as a direct replacement part, minimizing installation time and complexity for professional mechanics.

Technical Specifications

OEM Cross-Reference

This rotor head is a direct replacement for the following OEM part numbers:

• 146400-4520
• 9 461 620 956

These numbers are commonly associated with VE-type injection pumps used in various diesel applications. Please verify your existing part number for compatibility.

Compatibility

This rotor head is specifically designed for use in the following engine and vehicle applications:

• Engine Model: Mitsubishi 4D55 (4-cylinder diesel engine)
• Pump Type: VE-type (Distributor type) fuel injection pump
• Application: Compatible with various industrial and automotive diesel engines using the specified OEM numbers. Always cross-reference with your existing pump rotor head.

Global Supply & Distribution

We are a dedicated supplier of diesel engine parts with a robust global distribution network. We offer:

• Worldwide Shipping: Reliable logistics partners ensure fast delivery to major ports and industrial centers worldwide.
• Major Markets Served: Our products are exported to North America, South America, Europe, Southeast Asia, the Middle East, and Africa.
• Flexible Shipping Options: We offer sea freight, air freight, and express courier services to meet your urgency and budget.
• Export Expertise: We handle all international trade documentation and customs clearance procedures professionally.

Quality Assurance

• Manufacturing Standards: Our parts are manufactured in ISO-certified facilities in Shandong, China, ensuring consistent quality control.
• Testing: Each rotor head is inspected for dimensional accuracy and material integrity before packaging.
• Warranty: We offer a 4-month warranty against manufacturing defects, providing peace of mind for your purchase.
• Packaging: Parts are securely packed in neutral or WX packaging to prevent damage during transit.

FAQ

Q1: How do I confirm this rotor head fits my injection pump?

A: Please verify the OEM number on your current rotor head. This part is a direct replacement for parts marked 146400-4520 or 9 461 620 956. It is specifically designed for VE-type pumps on 4-cylinder engines like the Mitsubishi 4D55. If you are unsure, please contact our sales team with a photo of your old part for verification.

Q2: What is the typical installation process for this part?

A: Replacing the rotor head is a precision task that should be performed by a qualified diesel mechanic. The process generally involves removing the injection pump, disassembling the pump head, replacing the rotor head and any related seals, and then recalibrating the pump on a test bench to ensure correct timing and fuel delivery. It is not a simple bolt-on replacement and requires specialized tools.

Q3: How can I ensure a long service life for this new rotor head?

A: The longevity of your rotor head depends heavily on fuel quality and maintenance. Always use clean, high-quality diesel fuel and replace your fuel filters regularly. Ensure no dirt or water enters the injection system during installation. Adhering to the engine manufacturer’s recommended service intervals for the entire fuel system will maximize the life of this part.

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 .