Product Overview

This high-performance cam ring, identified by part numbers 7123-308N and 7123308N, is a precision-engineered component specifically designed for Denso DP Series fuel injection pumps. Manufactured to meet or exceed OEM specifications, this cam ring ensures reliable fuel delivery, optimal engine timing, and long service life. We are a global supplier with extensive export experience, serving major markets including North America, Europe, Asia-Pacific, the Middle East, and South America. Our logistics network ensures fast and reliable shipping to industrial centers and ports worldwide, making us a trusted partner for your heavy-duty diesel engine needs.

Key Features & Benefits

• Superior Hardness & Wear Resistance: Manufactured from high-grade alloy steel with a specialized heat treatment process, ensuring exceptional durability against rolling contact fatigue and extending the service life of the injection pump.
• Precision Ground Cam Profile: The cam lobes are precision ground to exacting tolerances, guaranteeing accurate plunger lift and consistent fuel injection timing for optimal engine performance and fuel efficiency.
• Rust-Proof Surface Finish: Treated with an anti-corrosion coating to protect against moisture and contaminants, ensuring long-term reliability even in harsh operating environments.
• Direct OEM Replacement: Designed as a direct, drop-in replacement for the original Denso part, requiring no modifications for installation. This ensures perfect fitment and immediate restoration of pump function.
• Rigorous Quality Control: Each cam ring undergoes strict dimensional and hardness testing to guarantee it meets the high standards required for critical fuel system components.

Technical Specifications

OEM Cross-Reference

This cam ring is a direct replacement for the following original equipment manufacturer (OEM) numbers:

• Denso: 7123-308N, 7123308N

Note: Please verify your pump model to ensure compatibility. This part is specifically designed for the Denso DP series.

Compatibility

This cam ring is specifically designed for use within the Denso DP Series fuel injection pump family. These pumps are commonly found on a wide range of industrial, agricultural, and construction machinery engines. Typical applications include:

• Komatsu heavy equipment engines
• Hitachi construction machinery engines
• Various Japanese and European diesel engine models utilizing the Denso DP series pump

Global Supply & Distribution

We offer a comprehensive global supply chain solution to meet the demands of B2B customers worldwide. Our key capabilities include:

• Worldwide Shipping: We ship to all major continents, including North America, South America, Europe, Asia, Africa, and Oceania.
• Major Ports & Industrial Centers: Fast and reliable delivery to key ports such as Los Angeles, Rotterdam, Shanghai, Dubai, and Singapore, as well as direct delivery to inland industrial hubs.
• Flexible Logistics: We support various shipping methods including express courier (DHL, FedEx, UPS), air freight, and sea freight, allowing you to choose based on urgency and budget.
• International Trade Compliance: Our export processes are fully compliant with international trade regulations, ensuring smooth customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001-certified facilities, ensuring consistent quality and process control.
• Testing: Each cam ring is 100% inspected for critical dimensions (inner diameter, outer diameter, lobe height) and surface hardness to ensure flawless performance.
• Warranty: We stand behind the quality of our products and offer a standard warranty against manufacturing defects. Please contact our sales team for specific warranty terms and conditions.

FAQ

Q1: How can I confirm that this cam ring (7123-308N) is the correct part for my injection pump?

A1: The most reliable method is to remove the old cam ring from your Denso DP series pump and compare the part number stamped on it. It should read 7123-308N or 7123308N. If you are unsure, please provide us with the model number of your injection pump (e.g., DP-200, DP-310) and the engine model, and our technical team can assist with verification.

Q2: What are the common signs of a worn cam ring that indicate replacement is needed?

A2: A worn cam ring can cause several performance issues, including hard starting, rough idling, reduced engine power, black smoke from the exhaust due to incomplete combustion, and inconsistent engine speed. If you observe these symptoms during pump overhaul, replacing the cam ring is a critical step to restore proper fuel injection timing and pressure.

Q3: What is the recommended procedure for installing this cam ring?

A3: Installation should be performed by a qualified diesel injection technician. The cam ring is typically located inside the pump housing and is held in place by a retaining pin or dowel. During installation, ensure the cam ring is properly aligned with the pump’s drive shaft and that the retaining mechanism is securely locked. It is crucial to lubricate the cam ring with clean diesel fuel or assembly oil before installation. For detailed steps, please refer to the official service manual for your specific Denso DP pump model.