Product Overview

This premium diesel fuel pump head rotor assembly is a critical component for maintaining optimal performance in heavy-duty fuel injection systems. Designed for direct replacement and repair, it ensures precise fuel metering and reliable engine operation. Sourced from a leading manufacturing hub in Shandong, China, this part is engineered to meet international quality standards and is exported globally to markets in North America, Europe, Asia-Pacific, the Middle East, and South America. Ideal for B2B buyers requiring consistent supply for fleet maintenance or wholesale distribution.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications for a seamless fit and reliable performance.
• Durable Construction: Built from high-grade materials to withstand high-pressure injection cycles and resist wear.
• Enhanced Fuel Efficiency: Optimized rotor design ensures accurate fuel delivery, reducing consumption and emissions.
• Rigorous Testing: Each unit undergoes strict quality control checks to guarantee functionality and longevity.
• Cost-Effective Solution: A high-quality alternative to OEM parts, offering excellent value for repair and maintenance operations.

Technical Specifications

OEM Cross-Reference

This head rotor assembly is a direct replacement for the following OEM numbers:

• 7139-235S (Primary OEM Reference)
• 7180-593S (Alternative OEM Reference)
• 858S 3/8.5R (Rotor Component Reference)

Note: Please verify your existing part number against the list above to ensure compatibility.

Compatibility

• Engine Type: Diesel engines equipped with inline fuel injection pumps.
• Application: Used in a wide range of heavy-duty machinery, including excavators, trucks, agricultural tractors, and industrial generators.
• Vehicle Makes: Compatible with various diesel engine brands requiring the 7139-235S / 7180-593S head rotor configuration.

Global Supply & Distribution

• Worldwide Shipping: We offer reliable logistics via sea, air, and express courier (DHL, FedEx, UPS, TNT) to meet urgent and bulk orders.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Netherlands), Asia-Pacific (Japan, South Korea, Australia, Indonesia), Middle East (UAE, Saudi Arabia), Africa (Nigeria, South Africa), and South America (Brazil, Chile).
• Fast Delivery: Stock is readily available for prompt dispatch to major ports and industrial hubs worldwide.
• Trade Compliance: Experienced in international export documentation and customs clearance for B2B transactions.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities with strict adherence to quality control processes.
• Testing: Each head rotor is tested for dimensional accuracy, material hardness, and hydraulic performance.
• Warranty: Backed by a 4-month warranty against manufacturing defects.
• Service: Dedicated professional support for fitment and technical inquiries.

FAQ

Q1: How do I verify this head rotor is compatible with my fuel injection pump?
A: Please check the part number stamped on your existing head rotor assembly. If it matches any of the listed numbers (7139-235S, 7180-593S, or 858S 3/8.5R), this unit is a direct fit. If you are unsure, provide a photo of the old part for verification.

Q2: What is the recommended installation procedure for this component?
A: Installation should be performed by a qualified diesel technician. The pump must be clean and free of debris. Ensure the rotor is properly lubricated with clean diesel fuel during assembly. Refer to the engine service manual for specific torque settings and timing adjustments.

Q3: How should I store spare head rotors to maintain their quality?
A: Store the unit in its original packaging in a cool, dry environment away from direct sunlight and moisture. Avoid exposure to extreme temperatures. For long-term storage, keep the rotor lightly oiled to prevent corrosion.