Product Overview

This high-quality DPA pump head rotor is a critical component for diesel engine fuel injection systems. Designed for replacement and repair, this rotor assembly (with rotor number 344W) ensures precise fuel metering and reliable engine performance. Sourced from a leading manufacturer in Shandong, China, this part is available for global shipping and is trusted by workshops and distributors in North America, Europe, the Middle East, and Asia-Pacific markets.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications (4/9.5R) for a perfect fit and optimal fuel delivery.
• Enhanced Durability: Built with high-grade materials to withstand the high pressures and wear of continuous diesel engine operation.
• Reliable Performance: Ensures consistent fuel injection timing and pressure, reducing engine knocking and improving fuel efficiency.
• Direct Replacement: Designed for easy installation as a direct swap for worn or failed original parts.
• Rigorous Testing: Each unit undergoes quality checks to guarantee functionality and long service life.

Technical Specifications

OEM Cross-Reference

This DPA pump head rotor is a direct replacement for the following OEM part numbers:

• 7139-422W
• 7180-759W

Note: The rotor number 344W is included in this assembly. Please verify your existing part number for compatibility.

Compatibility

This component is designed for use in diesel engines equipped with DPA-type fuel injection pumps. It is commonly found in a wide range of agricultural tractors, construction machinery, and industrial diesel engines. Always confirm the specification (4/9.5R) and rotor number (344W) match your original equipment before purchase.

Global Supply & Distribution

We offer efficient worldwide shipping for this and all our diesel engine parts. Our logistics network ensures fast and reliable delivery to major ports and industrial centers including Los Angeles, Rotterdam, Singapore, Dubai, and Shanghai. We serve a global B2B clientele across:

• North America: USA, Canada, Mexico
• Europe: UK, Germany, France, Netherlands, Poland
• Asia-Pacific: Australia, Japan, South Korea, Indonesia
• Middle East & Africa: UAE, Saudi Arabia, South Africa, Nigeria
• Latin America: Brazil, Argentina, Chile

Our team has extensive export experience and ensures all shipments comply with international trade regulations.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities with strict quality control processes.
• Warranty: Backed by a 4-month warranty against manufacturing defects.
• Testing: Each rotor is tested for dimensional accuracy and surface integrity before packing.

FAQ

Q1: How do I verify if this rotor fits my injection pump?

Check the existing part number on your pump head rotor. It should match either 7139-422W or 7180-759W. Also confirm the specification is 4/9.5R and the rotor number is 344W. If you are unsure, please provide your pump model and current part number for cross-verification.

Q2: What is the recommended installation procedure?

Installation should be performed by a qualified diesel technician. The rotor must be cleaned thoroughly and lubricated with clean diesel fuel or assembly lubricant before installation. Ensure the pump housing is free of debris and that all seals are replaced. Proper torque specifications must be followed to avoid damage.

Q3: Can this rotor be used for agricultural tractor applications?

Yes, this DPA head rotor is widely used in agricultural tractors and other off-highway diesel equipment. It is a common replacement part for fuel injection pumps found on models from various manufacturers. Always cross-reference your specific pump model to ensure compatibility.