Product Overview

This high-quality Diesel Fuel Injection Pump Head Rotor (Part Number: 146401-4220) is a critical component for VE-type fuel injection pumps, specifically engineered for the Nissan QD32 diesel engine. Manufactured to precision standards, this rotor head ensures optimal fuel metering and pressure generation for efficient engine performance. We are a leading global supplier serving major markets across North America, Europe, Asia-Pacific, the Middle East, and South America, offering reliable solutions for commercial vehicle fleets, construction machinery, and agricultural equipment.

Key Features & Benefits

• Premium High-Speed Steel Construction: Manufactured from durable High-Speed Steel to withstand high rotational speeds and pressures within the VE pump, ensuring long service life.
• Precision Engineering: Machined to standard OEM specifications (146401-4220) for a perfect fit and reliable sealing, preventing fuel leakage and pressure loss.
• 100% Professional Testing: Every rotor head undergoes rigorous performance and dimensional checks to guarantee consistent fuel delivery and engine starting reliability.
• Direct Replacement: Designed as a direct, drop-in replacement part for the original fuel injection pump assembly, reducing downtime for repair shops and fleet operators.
• Cost-Effective Solution: Provides a high-quality alternative to purchasing a complete pump assembly, offering significant savings for maintenance and overhaul projects.

Technical Specifications

OEM Cross-Reference

This product is a direct replacement for the following original equipment manufacturer (OEM) part numbers:

• 146401-4220 (Primary Reference)
• Compatible with Nissan QD32 VE-type fuel injection pump assemblies.
• Please verify your pump model (VE type) to ensure correct fitment.

Compatibility

• Engine Models: Nissan QD32 (4-cylinder diesel engine).
• Vehicle Applications: Commonly used in Nissan Atlas, Nissan Cabstar, Nissan Civilian, and other light-duty trucks and commercial vehicles equipped with the QD32 engine.
• Pump Type: Designed for Bosch VE-type (Verteiler-Einspritzpumpe) rotary injection pumps.
• Note: Always confirm engine model and pump type before ordering.

Global Supply & Distribution

• Worldwide Shipping: We offer fast and reliable shipping to major ports and industrial centers globally, including via Express (DHL, FedEx, TNT), Air Freight, and Sea Freight.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (UK, Germany, France, Poland), Asia-Pacific (Japan, Australia, South Korea), Middle East (UAE, Saudi Arabia), and South America (Brazil, Argentina).
• Fast Delivery: Standard processing time is 3-7 business days. Bulk orders for workshops and distributors can be arranged with shorter lead times.
• Export Experience: Our team is experienced in international trade documentation (Commercial Invoice, Packing List, Certificate of Origin) to ensure smooth customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities in China, adhering to strict quality control processes.
• Testing: Each rotor head is 100% professionally tested for dimensional accuracy, hardness, and surface finish before shipment.
• Warranty: All products are backed by a 1-year warranty against manufacturing defects. Our technical support team is available for installation guidance.

FAQ

Q: Is this rotor head a direct fit for my Nissan QD32 engine?
A: Yes, part number 146401-4220 is the standard OE specification for the fuel injection pump head rotor on the Nissan QD32 engine. It is designed as a direct replacement. However, we recommend verifying your pump is a Bosch VE-type unit and checking your original part number to confirm compatibility.

Q: What is the typical installation process for this part?
A: Replacing the rotor head requires disassembly of the fuel injection pump. This is a precision component and should be installed by a qualified diesel technician. The area must be exceptionally clean to prevent contamination. Proper torque specifications and alignment are critical for pump performance and engine timing.

Q: How can I ensure the longevity of this rotor head?
A: Longevity depends on fuel quality and system cleanliness. Always use clean, high-quality diesel fuel and replace fuel filters regularly. Ensure the injection pump is properly lubricated by the engine oil or fuel system as per manufacturer guidelines. Regular inspection during scheduled maintenance is recommended.

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 .