Product Details
Product Overview
This high-quality Diesel Fuel Injection Pump Head Rotor, OEM number 146401-3520, is a precision-engineered replacement part specifically designed for the Nissan TD23 diesel engine. Manufactured to OE specifications, this rotor head is a critical component for the VE-type fuel injection pump, ensuring accurate fuel metering and delivery for optimal engine performance. We provide global shipping to major industrial markets including North America, Europe, Southeast Asia, the Middle East, and Africa, with fast 3-7 day delivery times to support your operational needs.
Key Features & Benefits
- Superior Material: Constructed from high-speed steel for exceptional wear resistance and extended service life under high-pressure conditions.
- Precision Engineering: 100% professionally tested to guarantee precise fit and reliable fuel injection timing for the Nissan TD23 engine.
- Direct Replacement: Standard size design ensures a seamless swap for the original VE pump rotor, minimizing downtime.
- Reliable Performance: Restores injection pump efficiency, improving engine start-up, power output, and fuel economy.
- Rigorous Quality Control: Each unit undergoes strict inspection to ensure zero defects and consistent performance.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Name | Diesel Fuel Injection Pump Head Rotor |
| OEM Number | 146401-3520 |
| Engine Application | Nissan TD23 |
| Pump Type | VE Pump |
| Number of Cylinders | 4 |
| Material | High Speed Steel |
| Condition | New |
| Size | Standard |
| Warranty | 1 Year |
| Package Weight | 2.500 kg |
| Package Size | 30x30x30 cm |
OEM Cross-Reference
This diesel fuel injection pump rotor head is a direct replacement for the following original equipment manufacturer number:
- 146401-3520
Compatibility
This part is specifically designed for the following engine and vehicle applications:
- Engine Model: Nissan TD23 (4-cylinder diesel)
- Vehicle Application: Fits diesel vehicles equipped with the Nissan TD23 engine and a VE-type fuel injection pump. Common applications include various Nissan and Mazda light trucks, vans, and industrial equipment from the 1980s and 1990s.
Please verify your engine model and pump type before purchase. For specific vehicle fitment, consult your vehicle’s service manual.
Global Supply & Distribution
We are a dedicated supplier of high-quality diesel engine parts, with a robust global logistics network. Our capabilities ensure:
- Worldwide Shipping: Reliable delivery to all major continents.
- Major Markets Served: North America, Europe (EU), Southeast Asia, Middle East (GCC), Africa, and Oceania.
- Fast Delivery: Standard shipping within 3-7 business days after payment confirmation.
- Flexible Payment: Secure transactions via T/T, Western Union, and PayPal.
- Trade Compliance: Experienced in international export documentation and customs clearance.
Quality Assurance
- Manufacturing Standard: Produced in a certified facility with strict adherence to ISO quality management systems.
- 100% Professional Testing: Every rotor head is individually tested for dimensional accuracy, material hardness, and hydraulic performance.
- Warranty: Backed by a comprehensive 1-year warranty against manufacturing defects.
FAQ
Q1: Is this rotor head a direct fit for my Nissan TD23 engine?
A: Yes, this part is manufactured to standard size OE specifications and is a direct replacement for the original rotor head in the VE injection pump on the Nissan TD23 engine. No modifications are required for installation.
Q2: What is the recommended installation procedure?
A: Installation should be performed by a qualified diesel mechanic. The process typically involves removing the injection pump, disassembling the head section, replacing the rotor, and re-calibrating the pump timing on a test bench to ensure precise fuel delivery.
Q3: How can I ensure the longevity of this part?
A: Use clean, high-quality diesel fuel and replace fuel filters according to your vehicle’s maintenance schedule. Regularly check for air ingress in the fuel system, as this can cause premature wear of the pump rotor and internal components.
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 .
FAQ
Common Product Inquiry Questions
How can I confirm this part matches my engine or injector model?
Send the OEM number, engine model, application, or clear product photos. We will help verify the suitable part before quotation.
Can I ask for packing, shipping, and delivery details together?
Yes. You can combine product confirmation, quantity, destination, packing request, and shipment method in one inquiry so the quotation is more complete.
Why is price not displayed on the page?
This catalog is built for B2B inquiry. Final pricing depends on the confirmed part number, quantity, stock situation, and shipping destination.
What information helps you quote faster?
Please include the OEM number, engine model, quantity, destination country, and any packing or shipping preference. This usually speeds up matching and quotation.
Inquiry Desk
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- Simple inquiry flow with direct sales follow-up.
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Quick Inquiry
Nissan TD23 Diesel Fuel Injection Pump Head Rotor 146401-3520 – High Speed Steel, 4-Cylinder, 1 Year Warranty
Send one clear inquiry and we will reply with quotation, lead time, and fitment confirmation.
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Inquiry Desk
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Quick contact for this product. OEM number is attached automatically.
- Simple inquiry flow with direct sales follow-up.
- Send OEM number, quantity, or destination in the optional message if available.
- Every submission is stored in WordPress and sent to your admin email.