Product Details
Product Overview
This high-quality Rotor Head (Head Rotor) is a critical component for diesel injection pumps, specifically designed for the Isuzu C240 engine. Manufactured to meet or exceed OEM specifications, this part ensures precise fuel delivery, optimal combustion, and reliable engine performance. We serve a global B2B clientele, with major markets in North America, Europe, Southeast Asia, the Middle East, and Africa. With our robust supply chain, we offer fast shipping from our Shandong, China facility to major industrial ports worldwide.
Key Features & Benefits
- Precision Engineering: Manufactured to strict tolerances to ensure perfect fitment and fuel metering accuracy for the Isuzu C240 injection pump.
- Enhanced Durability: Constructed from high-grade hardened steel to withstand the high pressures and wear associated with diesel injection, ensuring a long service life.
- Direct OEM Replacement: A direct replacement for OEM numbers 146401-1920 and 9461614180, guaranteeing seamless installation without modifications.
- Improved Engine Performance: Restores injection pump efficiency, leading to smoother idling, better fuel economy, and reduced emissions.
- Rigorous Quality Control: Every unit is tested for hydraulic performance and dimensional accuracy before shipment.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Name | Rotor Head / Head Rotor |
| OEM Number | 146401-1920, 9461614180 |
| Engine Application | Isuzu C240 |
| Pump Type | 4/9L (4-cylinder / 9mm plunger) |
| Size | Standard |
| Material | High-Grade Hardened Steel |
| Quality Grade | Excellent |
| Warranty | 6 Months |
| Single Package Size | 12X12X12 cm |
| Single Gross Weight | 2.000 kg |
OEM Cross-Reference
This rotor head is a direct replacement for the following original equipment manufacturer numbers:
- Isuzu: 146401-1920
- Isuzu: 9461614180
Note: Always verify your injection pump model (4/9L) to ensure compatibility.
Compatibility
- Engine Model: Isuzu C240
- Vehicle Application: Designed for diesel engines using a 4/9L rotary injection pump, commonly found in industrial, agricultural, and light commercial vehicles (e.g., forklifts, generators, tractors).
Global Supply & Distribution
We are a dedicated supplier of diesel engine components with a strong focus on the international market. Our logistics network ensures efficient delivery to all major regions:
- North America: Fast shipping to ports in Los Angeles, Houston, and New York.
- Europe: Efficient distribution to Rotterdam, Hamburg, and Felixstowe.
- Asia-Pacific: Rapid delivery to Singapore, Shanghai, and Tokyo.
- Middle East & Africa: Reliable service to Dubai, Jeddah, and Durban.
We offer flexible shipping options including DHL, UPS, FedEx, EMS, and TNT to meet your urgent requirements. Our standard delivery time is 3-7 working days for in-stock items. We accept TT, Western Union, PayPal, and Trade Assurance for secure transactions. With a monthly supply ability of 1000+ pieces, we can handle both small orders and large-volume contracts.
Quality Assurance
- Manufacturing Standards: All parts are produced under strict quality management systems in our ISO-compliant facility in Shandong, China.
- Warranty: We offer a 6-month warranty against manufacturing defects.
- Testing: Each rotor head undergoes rigorous testing for dimensional accuracy, hardness, and hydraulic pressure resistance to ensure peak performance.
FAQ
1. How do I know if this rotor head fits my injection pump?
This rotor head is specifically designed for the Isuzu C240 engine using a 4/9L (4-cylinder, 9mm plunger) injection pump. You must verify your pump’s model number and plunger size. The OEM numbers 146401-1920 and 9461614180 must match the part currently installed.
2. What is the installation procedure for this part?
Installation should be performed by a qualified diesel technician. It involves disassembling the injection pump head, removing the old rotor head, and carefully installing the new one with proper torque specifications. The pump will require recalibration on a test bench after installation to ensure correct fuel timing and delivery.
3. How can I ensure the long life of this rotor head?
Longevity depends on fuel quality and system cleanliness. Always use clean, high-quality diesel fuel and replace your fuel filters regularly. Ensure the injection pump is free of contaminants before installation. Regular maintenance of the entire fuel system will maximize the service life of the rotor head.
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
Send Product Inquiry
Use this form to ask for fitment, MOQ, delivery time, packing, and shipping support for this product.
- Simple inquiry flow with direct sales follow-up.
- Send OEM number, quantity, or destination in the optional message if available.
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Quick Inquiry
Isuzu C240 146401-1920 9461614180 4/9L Rotor Head for Diesel Injection Pump
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- OEM number is included automatically when available.
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Inquiry Desk
Send Inquiry
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.