Product Overview

This high-precision Cam Ring is engineered for the reliable repair and replacement of DP Series diesel fuel injection pumps. As a critical component, it ensures optimal fuel delivery timing and pressure for engine performance. We supply this part globally to major industrial markets, including North America, Europe, Asia-Pacific, and the Middle East, supporting the maintenance of heavy machinery and commercial fleets worldwide.

Key Features & Benefits

• Premium Manufacturing: Manufactured to exacting tolerances from high-grade materials for consistent performance and extended service life.
• Direct OEM Replacement: Designed as a direct-fit substitute for original parts, ensuring seamless integration and restoring pump functionality.
• Enhanced Durability: Precision-engineered to withstand the high-stress environment within the injection pump, reducing wear and preventing premature failure.
• Optimized Fuel Delivery: Ensures precise cam lobe actuation for accurate fuel injection timing, contributing to optimal engine power and fuel efficiency.
• Global Logistics Ready: Packed in neutral or WX export packaging, ensuring safe transit and compliance with international shipping standards.

Technical Specifications

OEM Cross-Reference

This cam ring is a direct replacement for the following OEM part numbers. Ensure compatibility by cross-referencing your original part.

• 7139-844E
• 7139-940E
• 7139-949E
• 7139-949Q

Compatibility

This component is specifically designed for DP Series Diesel Fuel Injection Pumps. These pumps are commonly found in a wide range of industrial diesel engines powering:

• Excavators and Heavy Construction Equipment
• Mining Machinery
• Agricultural Tractors and Harvesters
• Commercial Truck and Bus Engines
• Marine and Generator Set Engines

Note: Always verify the specific pump model and engine application using the OEM part numbers listed above before purchase.

Global Supply & Distribution

We are a professional B2B supplier with extensive experience in the global automotive parts trade. Our streamlined export process ensures reliable delivery to key industrial regions.

• Worldwide Shipping: We export to all major markets, including North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands), Asia-Pacific (Australia, Japan, Singapore), and the Middle East (UAE, Saudi Arabia).
• Efficient Logistics: Fast container and air freight services to major ports and logistics hubs, minimizing lead times for your maintenance schedules.
• Trade Compliance: All documentation, including commercial invoices, packing lists, and certificates of origin, is prepared to meet international customs requirements.
• Bulk & Wholesale Focus: Structured to support distributors, workshops, and large fleet operators with volume orders and consistent supply.

Quality Assurance

We stand behind the quality and performance of our components to ensure they meet the demands of professional repair environments.

• Manufacturing Standards: Produced in ISO-certified facilities using advanced CNC machining and rigorous quality control checks at every production stage.
• Warranty: Backed by a 4-month warranty from the date of shipment, covering defects in material and workmanship.
• Testing: Components undergo dimensional verification and material analysis to ensure they match OEM specifications for fit, form, and function.
• Professional Service: Our technical support team can assist with compatibility verification and sourcing for related pump components.

FAQ

Q1: How do I confirm this cam ring is the correct part for my injection pump?
A1: The most reliable method is to match the part number. Remove the old cam ring from your DP Series pump and check for a stamped number. Cross-reference that number with the OEM numbers listed in the “OEM Cross-Reference” section above (7139-844E, 7139-940E, etc.). If unsure, provide the pump model and engine details for verification.

Q2: What is the installation procedure for this cam ring?
A2: Installation requires specialized knowledge of fuel injection pumps. It involves disassembling the pump housing, removing the old cam ring and rollers, and installing the new ring with precise alignment. We recommend installation by a qualified diesel fuel injection technician to ensure proper timing and avoid pump damage.

Q3: What are the signs that my injection pump’s cam ring needs replacement?
A3: Common symptoms include erratic engine idle, loss of power, poor fuel economy, excessive smoke from the exhaust, and unusual metallic knocking or tapping noises from the pump area. These indicate wear on the cam ring and rollers, affecting injection timing and pressure.