Product Overview

This high-quality Diesel Fuel Injection Pump Head Rotor, model 344W, is a critical component designed for precision fuel delivery in heavy-duty excavator and construction machinery engines. Manufactured to stringent standards, this replacement part ensures reliable performance and longevity. We serve a global clientele, with major markets in North America, Europe, the Middle East, Southeast Asia, and South America, offering fast and reliable shipping to industrial hubs worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured with high-grade materials for exceptional durability and wear resistance, ensuring a tight seal and consistent fuel pressure.
• Direct Replacement: Designed as a direct OE replacement for models 344W, 7123-340W, and 7180-550W, minimizing downtime during repair or overhaul.
• Enhanced Performance: Optimized rotor geometry ensures efficient fuel atomization, leading to improved combustion, higher power output, and reduced emissions.
• Rigorous Testing: Each unit undergoes strict quality control testing for pressure and flow characteristics to guarantee reliable operation in demanding conditions.
• Cost-Effective Solution: A premium aftermarket alternative to expensive OEM parts, offering significant savings without compromising on quality or service life.

Technical Specifications

OEM Cross-Reference

This Head Rotor is a direct replacement for the following OEM and reference numbers:

• OEM Numbers: 7123-340W, 7180-550W
• Model Reference: 344W

Please verify your existing part number to ensure compatibility.

Compatibility

This 344W Head Rotor is designed for use in fuel injection pumps commonly found in a variety of heavy-duty diesel engines, particularly those used in excavators, bulldozers, and other construction machinery. It is a standard replacement component for many Chinese and Japanese engine models requiring this specific rotor size and configuration. Always cross-reference with your pump model (e.g., based on Bosch or similar injection pump designs) to confirm fitment.

Global Supply & Distribution

• Worldwide Shipping: We offer reliable shipping via DHL, FedEx, EMS, and UPS to all major global destinations.
• Major Markets: Our parts are exported extensively to North America, Europe (Germany, UK, France), Asia-Pacific (Japan, Korea, Australia), Middle East (UAE, Saudi Arabia), and South America (Brazil, Chile).
• Fast Delivery: Standard delivery time is 3-35 days, depending on location and shipping method. Stock items ship within 24-48 hours to major ports and industrial centers.
• Trade Compliance: We have extensive experience in international trade, ensuring smooth customs clearance and documentation for B2B shipments.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities in Shandong, China, adhering to strict quality control processes.
• Testing: Each Head Rotor is tested for dimensional accuracy, surface hardness, and hydraulic performance before packaging.
• Warranty: Backed by a 6-month warranty against manufacturing defects, with 24-hour customer service support.

FAQ

Q: What is the main function of this 344W Head Rotor?
A: The Head Rotor is the central rotating component inside the fuel injection pump. It meters and distributes high-pressure fuel to the individual injectors at the correct timing, directly impacting engine power and efficiency.

Q: How do I know if this part fits my engine?
A: Fitment is determined by your injection pump model, not just the engine. Please check the existing part number on your pump’s head rotor or the pump housing. This part is specifically for pumps using the 344W, 7123-340W, or 7180-550W rotor assembly.

Q: What is the recommended installation procedure?
A: Installation should be performed by a qualified diesel mechanic. The process involves disassembling the injection pump top, carefully replacing the rotor and head assembly, and then recalibrating the pump on a test bench to ensure correct fuel delivery and timing. Improper installation can lead to engine damage.