Product Overview

This is a premium replacement Hydraulic Head Rotor (Distributor Head) designed for DPA-type diesel injection pumps. Engineered for global markets, this component is a critical spare part for maintaining fuel system precision and engine performance. We supply directly to workshops, distributors, and fleet operators worldwide, with major markets in North America, Europe, the Middle East, and the Asia-Pacific region.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications to ensure perfect fitment and optimal fuel distribution.
• Superior Material: Constructed from high-speed steel for exceptional wear resistance and durability under high-pressure, high-RPM operation.
• Certified Quality: Produced under ISO 9001:2000 and TS16949 quality management systems, guaranteeing consistent performance and reliability.
• Enhanced Engine Performance: Restores precise fuel metering and timing, leading to smooth engine operation, optimal power output, and reduced emissions.
• Global Logistics Ready: Packaged for secure international shipping with flexible packing options to meet specific customer requirements.

Technical Specifications

OEM Cross-Reference

This part is a direct replacement for the following OEM part numbers:

• 7123-340L
• 7123340L
• 344L
• 4/7R

Note: Always verify cross-references with your specific pump model before purchase.

Compatibility

This DPA pump hydraulic head rotor is designed for use in various diesel engines utilizing the DPA (Distributor-type Pump, Axial-piston) fuel injection system. It is commonly found in applications for:

• Industrial & Construction Machinery: Excavators, loaders, generators, and other heavy-duty equipment.
• Agricultural Equipment: Tractors and harvesters.
• Commercial Vehicles: Specific models of trucks and buses.

Consult your pump service manual or contact our technical support with your engine model and pump serial number for precise compatibility confirmation.

Global Supply & Distribution

We are a professional B2B supplier with extensive experience in the international automotive parts trade. Our streamlined export process ensures smooth transactions and compliance with global shipping regulations.

• Worldwide Shipping: We ship via major carriers including DHL, UPS, FEDEX, EMS, and TNT to any destination.
• Fast Delivery Network: Standard delivery to major industrial hubs and ports in North America (USA, Canada), Europe (UK, Germany, Netherlands), the Middle East (UAE, Saudi Arabia), and Asia-Pacific (Australia, Singapore) within 3-7 days after dispatch.
• Bulk & Custom Orders: We support bulk procurement with flexible MOQs and packaging tailored to your logistical needs.

Quality Assurance

Every component undergoes rigorous quality control to meet the highest industry standards.

• Certified Manufacturing: All parts are produced in facilities certified to ISO 9001:2000 and the automotive-specific TS16949 standard.
• Comprehensive Warranty: Backed by a 3-month warranty against manufacturing defects.
• Pre-Shipment Inspection: Each unit is inspected for dimensional accuracy, material integrity, and surface finish before packaging.

FAQ

Q: How do I confirm this part is compatible with my specific DPA pump?
A: The most reliable method is to match the part number stamped on your original hydraulic head rotor. Cross-reference it with our listed part numbers (7123-340L, 7123340L). Providing your engine model and pump serial number to our team will allow us to give you a definitive confirmation.

Q: What are the critical installation steps for this rotor head?
A: Installation must be performed by a qualified technician. Key steps include ensuring absolute cleanliness to prevent contamination, proper priming of the pump, and precise calibration of fuel timing and delivery settings on a pump test bench after assembly. Never install without proper calibration.

Q: What is the primary cause of failure for this component, and how can it be prevented?
A> The primary failure mode is wear due to contaminated fuel or inadequate lubrication from the diesel fuel itself. Prevention involves using high-quality, clean, and well-filtered fuel, maintaining the fuel filter regularly, and ensuring the fuel tank is kept free of water and debris.