Product Overview

This high-accuracy Head Rotor, model 7180-720L, is a critical replacement component for DPA-type diesel common rail fuel injection pumps. Manufactured to standard dimensions, it is designed for direct fitment in diesel engine fuel systems. As a trusted supplier based in Shandong, China, we serve a global B2B clientele, providing reliable parts for the repair and maintenance of diesel engines across North America, Europe, Asia-Pacific, and the Middle East.

Key Features & Benefits

• Precision Engineering: Manufactured to high-accuracy tolerances (4/7R specification) ensuring optimal fuel metering and injection timing.
• Durable Construction: Built from high-quality materials to withstand the high pressures and demanding conditions within a common rail pump.
• Direct Replacement: Standard size design ensures a seamless, drop-in fit for most DPA pump applications, minimizing downtime.
• Cost-Effective Solution: Factory-direct pricing offers a significant value advantage over OEM alternatives without compromising on performance.
• Reliable Performance: Rigorously tested to ensure consistent fuel delivery and long service life for diesel engines.

Technical Specifications

OEM Cross-Reference

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

• Primary Part Number: 7180-720L
• Rotor Reference: 241L
• Specification Code: 4/7R

Note: This part is a standard DPA (Distributor Pump) component. Please verify your pump’s existing rotor specification (4/7R) to ensure compatibility. Cross-reference with your original pump’s service manual for exact fitment.

Compatibility

• Application: Designed for use in DPA-type diesel common rail fuel injection pump systems.
• Vehicle Model: Suitable for a wide range of diesel engine cars and light-duty commercial vehicles utilizing DPA pump technology.
• Engine Type: Primarily used in indirect injection and early common rail diesel engines found in agricultural, automotive, and industrial equipment.

Global Supply & Distribution

We offer comprehensive worldwide shipping and logistics support to ensure your order arrives on time. Our key markets include:

• North America: Fast delivery to major industrial hubs in the USA, Canada, and Mexico.
• Europe: Efficient shipping to Germany, UK, France, Italy, and Eastern European markets.
• Asia-Pacific: Rapid distribution to Japan, South Korea, Australia, and Southeast Asia.
• Middle East & Africa: Reliable service to UAE, Saudi Arabia, South Africa, and Egypt.
• South America: Consistent supply to Brazil, Argentina, and Chile.

Our export experience ensures compliance with international trade standards, offering professional customs documentation and secure packaging for all shipments.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities in Shandong, China, adhering to strict quality control processes.
• Testing: Each head rotor is inspected for dimensional accuracy, surface finish, and material integrity before shipment.
• Warranty: Backed by a 4-month warranty against manufacturing defects, providing you with peace of mind for your repair projects.

FAQ

Q1: How do I confirm that the 7180-720L head rotor will fit my pump?
A: First, verify the part number on your existing head rotor. It must match 7180-720L. Second, check the rotor specification, which should be “4/7R”. If your pump uses a different rotor number (e.g., 241L is the rotor number, but the assembly part is 7180-720L), ensure the assembly number matches. If you are unsure, measure the diameter and length of your original part and compare it to the standard size specifications provided.

Q2: What are the common failure signs of a DPA head rotor?
A: Common symptoms include hard starting, erratic idling, loss of power under load, black smoke from the exhaust, and fuel leaks from the pump body. A worn or scored head rotor can cause low injection pressure and poor fuel atomization. Replacing it as part of a pump overhaul is standard practice to restore engine performance.

Q3: What is the recommended installation procedure?
A: Installation should be performed by a qualified diesel technician. The pump must be removed from the engine, disassembled in a clean environment, and the old rotor extracted using a puller. The new rotor should be lubricated with clean diesel fuel or assembly lube before installation. The pump must then be re-assembled and calibrated on a test bench to ensure correct fuel delivery and timing. We recommend replacing the drive shaft seal and O-rings during this service.