Product Overview

This high-performance DPA (Distributor Pump A) head rotor is a critical component for diesel engine fuel injection systems. Designed for precise fuel metering and distribution, this replacement part ensures optimal engine performance and fuel efficiency. We supply this component globally, serving major markets including North America, Europe, Southeast Asia, the Middle East, and Africa, with a strong focus on reliable shipping to industrial hubs and major ports.

Key Features & Benefits

• Precision Engineering: Manufactured to exacting tolerances for accurate fuel delivery, ensuring smooth engine operation and reduced emissions.
• High-Performance Material: Constructed from durable, wear-resistant materials to withstand high pressures and extend service life.
• Direct Replacement: Designed as a perfect OE replacement for DPA fuel injection pumps, minimizing downtime during repair or overhaul.
• Reliable Performance: Rigorously tested to meet OEM standards, providing consistent starting and reliable power output.
• Cost-Effective Solution: Offers a high-quality alternative to expensive OEM parts without compromising on longevity or functionality.

Technical Specifications

OEM Cross-Reference

This DPA head rotor is a direct cross-reference for the following OEM and common part numbers:

• Primary Number: 7123-340R
• Secondary Number: 7180-550R
• Rotor Reference: 344M
• Alternative Numbers: 7123-359M, 7180-578M

Note: This part is designed to replace the original rotor assembly within compatible CAV/DPA-type fuel injection pumps.

Compatibility

• Engine Type: Diesel engines equipped with DPA (Distributor Pump A) type fuel injection pumps.
• Common Applications: Widely used in agricultural tractors, industrial machinery, construction equipment, and marine diesel engines.
• Vehicle Models: Suitable for various makes including Ford, Massey Ferguson, Perkins, Leyland, and other OEMs utilizing DPA pump technology.

Global Supply & Distribution

We are a dedicated supplier of diesel engine components with a robust global distribution network. Our logistics capabilities ensure timely and cost-effective delivery to customers worldwide.

• Worldwide Shipping: We ship to all major continents including North America, South America, Europe, Asia, Africa, and Oceania.
• Major Ports & Hubs: Fast and reliable shipping to major ports such as Rotterdam, Hamburg, Los Angeles, Shanghai, Dubai, and Singapore.
• Flexible Quantities: Low Minimum Order Quantity (MOQ) of 6 pieces makes it easy for small repair shops and large distributors alike to stock this essential part.
• Export Experience: Our team has extensive experience in international trade, handling customs documentation and compliance for smooth cross-border transactions.

Quality Assurance

We are committed to providing components that meet the highest standards of quality and reliability.

• Manufacturing Standards: Produced in a facility that adheres to strict quality control processes, ensuring dimensional accuracy and material integrity.
• Testing: Each head rotor is inspected for critical parameters such as clearance, hardness, and surface finish to guarantee flawless operation.
• Warranty: This product comes with a 4-month warranty against manufacturing defects, providing you with peace of mind.

FAQ

Q1: What are the signs that my DPA head rotor needs replacement?
Common symptoms include hard starting, engine misfiring, loss of power, black smoke from the exhaust, and unstable idle speed. These issues often indicate wear or scoring on the rotor or its mating surface (the hydraulic head), leading to internal fuel leakage and poor pressure regulation.

Q2: Is this a direct replacement part, and what tools are needed for installation?
Yes, this head rotor is designed as a direct replacement for the original part within the DPA pump. Installation is a specialized task that requires precision tools and knowledge of fuel injection systems. It is highly recommended that a qualified diesel technician performs the replacement, as incorrect installation can lead to pump failure or engine damage. The pump must be re-calibrated on a test bench after installation.

Q3: How does the rotor number (344M) relate to the other part numbers (7123-340R, 7180-550R)?
The rotor number (344M) is the specific identification for the rotating component itself. The numbers 7123-340R and 7180-550R are often the kit or assembly numbers for the complete head and rotor set. This part is the rotor only, which is sometimes sold separately for repairs. It is compatible with the hydraulic head assemblies referenced by those kit numbers. Please verify your pump’s current rotor number to ensure a match.