Product Overview

This premium Fuel Injection Pump Rotor Head is a critical component for diesel engine fuel systems, designed for replacement and repair applications. Manufactured in Shandong, China, this high-quality rotor head ensures precise fuel metering and reliable engine performance. Our global supply chain enables fast shipping to major markets including North America, Europe, Asia-Pacific, the Middle East, and Africa, making it an ideal solution for international B2B buyers seeking durable and cost-effective diesel engine parts.

Key Features & Benefits

• High Precision Engineering: Manufactured to exacting OEM specifications (7139-235G) for seamless fitment and optimal fuel injection timing.
• Durable Construction: Built from robust materials to withstand high-pressure diesel injection systems, ensuring long service life and reduced downtime.
• Enhanced Performance: Delivers consistent fuel flow and pressure, improving engine efficiency and reducing emissions.
• Reliable Replacement: Designed as a direct replacement for worn or failed rotor heads, restoring engine power and reliability.
• Professional Support: Backed by our expert service team to assist with fitment questions and technical inquiries.

Technical Specifications

OEM Cross-Reference

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

• Primary Part Number: 7139-235G
• Rotor Number: 858PQ 3/8R
• Alternative Reference: 7139-235G Head Rotor

Note: Always verify compatibility with your specific injection pump model before purchase.

Compatibility

This fuel injection pump rotor head is designed for universal application in diesel engines. It is commonly used in:

• Heavy-duty diesel engines (agricultural, construction, industrial)
• Medium-duty diesel engines (trucks, buses, generators)
• Light-duty diesel engines (automotive, marine)

Compatible Systems: Works with most rotary-type fuel injection pumps that accept a 3/8R rotor configuration. Check your pump’s technical manual for fitment confirmation.

Global Supply & Distribution

• Worldwide Shipping: We ship to all major global markets via reliable logistics partners.
• Major Markets Served: North America, Europe, Asia-Pacific, Middle East, Africa, and South America.
• Fast Delivery: Expedited shipping available to major ports and industrial centers (e.g., Rotterdam, Shanghai, Dubai, Los Angeles, Singapore).
• Export Expertise: Our team has extensive experience in international trade, ensuring compliant documentation and smooth customs clearance.
• Bulk Orders: MOQ of 6 pieces, with volume discounts available for larger quantities.

Quality Assurance

• Manufacturing Standards: Produced in ISO-compliant facilities in Shandong, China, with strict quality control processes.
• Testing: Each rotor head is tested for dimensional accuracy, material integrity, and pressure resistance.
• Warranty: Backed by a 4-month warranty against manufacturing defects.
• Packaging: Securely packed in neutral or WX-branded packaging to prevent damage during transit.

FAQ

Q1: How do I confirm if this rotor head (7139-235G) is compatible with my injection pump?
A: Verify your pump model and the existing rotor part number. The 858PQ 3/8R designation indicates a specific rotor size and spline configuration. Cross-reference this with your pump’s service manual or consult our technical support team for assistance.

Q2: What is the recommended installation procedure for this rotor head?
A: Installation should be performed by a qualified diesel technician. Ensure the pump housing is clean and free of debris. Align the rotor head carefully with the drive shaft, apply appropriate torque as per the pump manufacturer’s specifications, and test for leaks and proper operation after installation.

Q3: How long does the rotor head typically last under normal operating conditions?
A: Service life depends on fuel quality, operating environment, and maintenance practices. Under standard conditions with clean diesel fuel and regular filter changes, this high-quality rotor head can provide thousands of hours of reliable service. The 4-month warranty covers manufacturing defects; proper installation and maintenance will maximize longevity.