Product Overview

This is a premium quality DPA Head Rotor 7139-235S, featuring a precise Specification of 3/8.5R and a Rotor Number of 858S. Designed as a critical component for diesel engine fuel injection systems, this head rotor is manufactured to exacting standards for reliable replacement and repair. Our company, based in Shandong, China, serves a global B2B clientele, ensuring fast and efficient shipping to major markets including North America, Europe, Southeast Asia, the Middle East, and Africa. We specialize in providing high-performance diesel engine parts for the international aftermarket.

Key Features & Benefits

• Precision Engineering: Manufactured to OEM specifications (OE NO. 7139-235S) for a perfect fit and seamless integration with your existing DPA fuel injection pump.
• Enhanced Durability: Constructed from high-grade materials to withstand extreme pressures and temperatures, ensuring a long service life and reduced downtime.
• Optimal Fuel Delivery: The 3/8.5R specification ensures precise fuel metering and distribution, leading to improved engine performance, fuel efficiency, and lower emissions.
• Reliable Performance: Each unit undergoes rigorous quality control testing to guarantee consistent operation under demanding working conditions.
• Cost-Effective Solution: As a new replacement part, it offers a reliable and affordable alternative to a complete pump overhaul, extending the life of your diesel engine.

Technical Specifications

OEM Cross-Reference

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

• Primary OE Number: 7139-235S
• Rotor Reference: 858S

Please verify your existing part number against the 7139-235S before ordering to ensure compatibility.

Compatibility

This DPA head rotor is designed for use in a wide range of diesel fuel injection systems. It is commonly used in:

• Engine Type: Diesel engines equipped with DPA (Distributor Pump A) type fuel injection pumps.
• Vehicle Application: Diesel automobiles, light trucks, agricultural machinery, and industrial equipment.

Global Supply & Distribution

We offer a comprehensive global supply and distribution network designed to meet the urgent needs of B2B buyers worldwide.

• Worldwide Shipping: We ship to all major continents, including North America, South America, Europe, Asia-Pacific, Africa, and the Middle East.
• Fast & Reliable Delivery: Efficient logistics ensure quick delivery to major ports and industrial hubs like Los Angeles, Rotterdam, Dubai, Singapore, and Shanghai.
• Major Markets Served: Our parts are trusted by workshops, distributors, and fleet operators in the USA, Canada, UK, Germany, Australia, UAE, and across Southeast Asia.
• Trade Compliance: We have extensive experience in international export, ensuring all documentation and packaging comply with global trade regulations.

Quality Assurance

We are committed to providing high-quality components that our customers can rely on.

• Manufacturing Standards: Produced in a certified facility in Shandong, China, following strict quality control processes.
• Testing: Each head rotor is tested for dimensional accuracy, material integrity, and hydraulic performance before shipment.
• Warranty: This product is backed by a 4-month warranty against manufacturing defects, providing you with peace of mind.

FAQ

1. How do I confirm this head rotor (7139-235S / 858S) is the correct part for my pump?
Please check the existing part number on your DPA head rotor. The primary number should be 7139-235S. Also, verify the specification is 3/8.5R. If your part matches these numbers, it is a direct fit. If you are unsure, please contact us with your pump model and engine details for verification.

2. What is the installation process for this head rotor?
Installation should be performed by a qualified diesel fuel injection technician. The process involves removing the hydraulic head from the DPA pump, carefully extracting the old rotor, and installing the new one. It is critical to ensure absolute cleanliness during the procedure to prevent contamination of the fuel system. We recommend consulting a service manual for your specific pump model.

3. What maintenance is required to maximize the lifespan of this rotor?
The lifespan of the head rotor is heavily dependent on fuel quality and filtration. Always use clean, high-quality diesel fuel and replace your fuel filters at the manufacturer’s recommended intervals. Contaminants in the fuel are the primary cause of premature wear on precision components like the head rotor.