Product Overview

This high-quality Diesel Fuel Injection Pump Head Rotor assembly (Part No. 7180-645L) is a critical component for maintaining optimal fuel delivery and engine performance in a variety of diesel engines. Designed as a direct replacement for repair and maintenance, this unit includes the essential Rotor (344L), Sleeve (652), and Barrel (649A 4/7R) components. We serve a global B2B clientele, with consistent shipments to major industrial markets across North America, Europe, Asia-Pacific, the Middle East, and Africa, ensuring reliable supply chains for workshops and distributors worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications for a perfect fit and reliable operation, ensuring consistent fuel pressure and timing.
• Durable Construction: Built from high-grade alloy steel to withstand extreme pressures and wear, significantly extending the service life of the injection pump.
• Enhanced Fuel Efficiency: The precisely matched rotor, sleeve, and barrel set ensures minimal internal leakage, optimizing fuel atomization and combustion for better fuel economy.
• Rigorous Testing: Each unit undergoes strict quality control checks, including pressure and flow testing, to guarantee performance and reliability upon installation.
• Complete Kit: Supplied as a set including the Head Rotor (7180-645L), Rotor (344L), Sleeve (652), and Barrel (649A), simplifying your parts sourcing and inventory management.

Technical Specifications

OEM Cross-Reference

This head rotor assembly is a direct replacement for the following OEM numbers:

• Primary Part Number: 7180-645L
• Alternate OEM Number: 7180-633K

Note: The 7180-645L and 7180-633K are commonly used cross-reference numbers for this specific pump head design. Please verify your pump model for compatibility.

Compatibility

This fuel injection pump head rotor assembly is designed for use in diesel fuel injection systems commonly found in:

• Engine Types: Inline and distributor-type diesel injection pumps for industrial and automotive applications.
• Vehicle Applications: Suitable for a wide range of car engines, light trucks, and agricultural machinery utilizing similar pump configurations.
• System: Diesel Fuel Injection System.

Note: This is a generic replacement part for specific pump models. Please consult your pump’s service manual or a qualified technician to confirm fitment with your specific engine and pump serial number.

Global Supply & Distribution

We are a dedicated international supplier of diesel engine components. Our logistics network ensures efficient worldwide delivery:

• Shipping Partners: DHL, TNT, UPS, EMS, and FEDEX for fast and reliable door-to-door service.
• Major Markets Served: We export extensively to North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Australia, Japan, Singapore), the Middle East (UAE, Saudi Arabia), and South America (Brazil, Argentina).
• Delivery Hubs: Efficient customs clearance and delivery to major ports and industrial hubs, including Los Angeles, Rotterdam, Dubai, Singapore, and Shanghai.
• Export Compliance: We adhere to international trade regulations and can provide necessary documentation for smooth customs processing.

Quality Assurance

• Manufacturing Standards: Parts are manufactured in ISO-certified facilities in Shandong, China, ensuring consistent quality control.
• Inspection: Each Head Rotor assembly is inspected for dimensional accuracy, surface finish, and material integrity before packing.
• Warranty: Backed by a 3-6 month warranty against manufacturing defects, providing you with peace of mind.
• Packaging: Securely packed in neutral or WX branded packaging to prevent damage during transit.

FAQ

Q1: What is the function of the Head Rotor in a diesel injection pump?
The Head Rotor is the central hydraulic component of a distributor-type injection pump. It rotates and reciprocates to precisely meter, pressurize, and distribute fuel to the correct injector at the exact moment for combustion. A worn rotor leads to poor starting, misfiring, and loss of power.

Q2: How can I verify if this 7180-645L assembly is compatible with my pump?
You must verify the model number on your injection pump’s nameplate. This assembly is a specific variant. Cross-reference your pump’s part number with 7180-645L or 7180-633K. If you are unsure, please contact our 24-hour customer service with your pump’s make, model, and serial number for expert verification before ordering.

Q3: What are the signs that my injection pump’s head rotor needs replacement?
Common indicators include: hard starting or no-start conditions, erratic idling, a decrease in engine power under load, excessive black smoke from the exhaust, and visible fuel leakage from the pump housing. Regular maintenance and replacement of this high-wear component are crucial for pump longevity.