Product Overview

This is a premium-quality hydraulic head rotor, a critical component for DPA-type diesel distributor pumps. Engineered for precision and durability, it is designed to restore optimal fuel injection performance. We supply this part globally to major markets including North America, Europe, the Asia-Pacific region, and the Middle East, supporting the maintenance and repair of heavy machinery and commercial vehicles worldwide.

Key Features & Benefits

• Precision Engineered: Manufactured from high-speed steel to exacting tolerances, ensuring perfect fitment and reliable fuel metering for consistent engine performance.
• Enhanced Durability: Built to withstand the high pressures and rotational stresses within diesel injection pumps, offering extended service life and reduced downtime.
• Direct OEM Replacement: A 100% brand-new part designed as a direct cross-reference for original equipment numbers, guaranteeing compatibility and performance.
• Global Quality Standards: Produced under ISO 9001:2000 and TS16949 quality management systems, ensuring consistent, industry-leading manufacturing quality.
• Optimized for B2B Efficiency: Available with a low MOQ and flexible shipping/packaging options (DHL, UPS, FedEx, EMS, TNT) to streamline your supply chain and inventory management.

Technical Specifications

OEM Cross-Reference

This hydraulic head rotor is a direct replacement for the following OEM and alternative part numbers:

• 7123-340J (Primary Model)
• 7123340J (OE Number)
• 7180-550J
• 344J
• 4/6.5R

Note: Always verify the specific part number from your original pump or service manual before ordering.

Compatibility

This DPA pump hydraulic head rotor is designed for use in various diesel distributor pump models, commonly found on:

• Engine Applications: Fits a range of industrial and automotive diesel engines equipped with DPA-type distributor fuel injection pumps.
• Machine Applications: Suitable for fuel system overhauls in excavators, loaders, generators, agricultural tractors, and medium-duty trucks that utilize compatible pump models.
• For precise application, cross-reference the part numbers listed above with your engine or pump model.

Global Supply & Distribution

We are a professional B2B supplier with extensive experience in international export. Our logistics network ensures efficient delivery to key industrial hubs and ports globally.

• Worldwide Shipping: We ship via major carriers including DHL, UPS, FedEx, EMS, and TNT to destinations across North America, Europe, Asia, Australia, the Middle East, and Africa.
• Fast Delivery: Standard delivery time is 3-7 days to major destinations, with expedited options available.
• Export Compliance: All shipments are prepared with complete commercial documentation (invoice, packing list, certificate of origin) to ensure smooth customs clearance.
• Flexible Packaging: We accommodate specific packaging requirements for bulk orders to ensure secure transit and easy handling.

Quality Assurance

Every component is manufactured and inspected to meet the highest industry standards, providing you with reliable performance and peace of mind.

• Certified Manufacturing: Production is governed by ISO 9001:2000 and automotive-specific TS16949 quality management systems.
• Rigorous Testing: Parts undergo dimensional checks and material verification to ensure they meet original design specifications.
• Warranty Backed: This part is covered by a 3-month warranty against manufacturing defects, supporting your business with confidence.
• Traceability: Sourced from specialized manufacturers in Shandong, a key industrial region for automotive components.

FAQ

Q1: How do I confirm this part is compatible with my specific DPA pump?
A1: The most reliable method is to match the part number stamped on your original hydraulic head or rotor. Cross-reference that number with the list provided in the “OEM Cross-Reference” section above (e.g., 7123-340J, 7180-550J). If unsure, consult your pump’s service manual or contact our technical support with your pump model.

Q2: Is this a complete pump assembly or just the rotor/head component?
A2: This listing is for the hydraulic head rotor sub-assembly only, which is the core rotating element inside the DPA pump distributor head. It does not include the pump housing, drive shaft, or other external components.

Q3: What are the critical installation precautions for this rotor?
A3: Installation should be performed by a qualified technician. Key steps include ensuring absolute cleanliness to prevent contamination, proper lubrication during assembly, and precise setting of timing and pump calibration after installation. Always use a seal kit and replace wear components (seals, springs) during overhaul for optimal performance and longevity.