Product Overview

This high-precision Diesel Fuel Injection Head Rotor & Rotor Head is a critical component for modern fuel injection systems. Manufactured to exacting OEM standards, this part ensures optimal fuel metering and injection pressure for maximum engine efficiency. We are a leading global supplier, serving markets across North America, Europe, Asia-Pacific, and the Middle East with fast shipping to major ports and industrial hubs.

Key Features & Benefits

• Precision Engineered: Manufactured from High-Speed Steel for superior wear resistance and long service life.
• 100% Professional Testing: Every unit is rigorously tested to ensure perfect hydraulic balance and dimensional accuracy.
• Direct OEM Replacement: Designed to match original specifications for seamless installation and reliable performance.
• Enhanced Durability: Resistant to high-pressure stress and fuel corrosion, reducing downtime and maintenance costs.
• Optimized Fuel Economy: Precision machining ensures accurate fuel delivery, improving combustion and reducing emissions.

Technical Specifications

OEM Cross-Reference

This rotor head is a direct replacement for the following OEM part numbers. Please verify your original part number before ordering.

• 146403-3120
• 146403-3320
• 146403-3520
• 146403-3720
• 146403-4720
• Also referenced as: 1464033120

Compatibility

This fuel injection head rotor is designed for use in diesel engines equipped with rotary fuel injection pumps. It is commonly used in various industrial, agricultural, and construction machinery applications. Always consult your engine or injection pump service manual to confirm compatibility with your specific pump model.

Global Supply & Distribution

• Worldwide Shipping: We offer fast, reliable shipping to all major global destinations via air, sea, and express courier.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Japan, South Korea, Australia, India), Middle East (UAE, Saudi Arabia, Qatar), and Africa.
• Fast Delivery: Stock is ready for immediate dispatch to major ports (e.g., Shanghai, Shenzhen) and industrial centers.
• International Compliance: We have extensive export experience and ensure all documentation meets international trade requirements.

Quality Assurance

Our manufacturing process adheres to strict quality control standards. Each rotor head undergoes a 100% professional test to verify dimensional accuracy, surface finish, and hydraulic performance. We back our product with a 6-month warranty against manufacturing defects, providing you with peace of mind for your repairs.

FAQ

1. How do I identify the correct rotor head for my injection pump?

To ensure a perfect fit, locate the part number stamped directly on your existing rotor head or rotor. The most common numbers for this unit are 146403-3120, 146403-3320, 146403-3520, 146403-3720, and 146403-4720. If you are unsure, please contact us with a photo or the number from your old part.

2. What is the installation procedure for this head rotor?

Installation requires specialized knowledge of diesel fuel injection systems. We strongly recommend that a qualified diesel technician perform the replacement. The process typically involves disassembling the injection pump, carefully removing the old rotor, cleaning the mating surfaces, and installing the new rotor with the correct torque specifications and timing marks.

3. What maintenance is required for this part?

This is a wear-and-tear item. Its lifespan depends on fuel quality, operating conditions, and overall engine maintenance. To maximize its life, use clean, high-quality diesel fuel and replace your fuel filters at recommended intervals. If you experience hard starting, uneven running, or loss of power, the rotor head should be inspected as part of the injection pump diagnostics.