Alternator 12PK 28V 55A 34368-01100 JFZ2520D for E320 E320B E320D Caterpillar Engine Parts

Product Details

Product Overview

This high-output Alternator, model JFZ2520D (OEM 34368-01100), is specifically engineered for demanding diesel engine applications in the Caterpillar 320 series excavator family. Designed to deliver reliable 28V/55A power, this unit is a direct replacement for the original equipment alternator found on E320, E320B, and E320D models.

Crafted to meet strict OEM dimensional and performance standards, this alternator ensures seamless integration with your machinery’s charging system. It is a critical component for maintaining battery health and powering electrical systems in heavy equipment operating in construction, mining, and industrial environments.

Key Features & Benefits

• OEM Specification Fit: Built to match the exact size (OEM Size), mounting points, and electrical output of the original alternator, ensuring a direct bolt-on replacement without modification.
• High-Output Charging: Delivers a stable 28V and 55A output, sufficient to power heavy electrical loads and maintain battery charge even during extended idle periods or cold starts.
• 12PK Serpentine Pulley: Features a 12-groove PK belt pulley, ensuring compatibility with the existing drive belt system on your Caterpillar engine for reliable power transmission.
• Robust Construction: Manufactured with heavy-duty components to withstand the high vibrations, extreme temperatures, and harsh conditions typical of excavator operations.
• Durable Sealing: Designed with dust and moisture resistance to protect internal components from common job site contaminants, extending service life.
• Cost-Effective Solution: Offers a premium aftermarket alternative to the OEM part, providing significant cost savings without compromising on performance or reliability.

Technical Specifications

OEM Cross-Reference

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

• 34368-01100 (Primary OEM Number)
• JFZ2520D (Alternate Reference)

Note: Always verify the physical dimensions, mounting bracket configuration, and pulley type against your existing unit to ensure correct fitment.

Compatibility

This 28V 55A alternator is commonly used for the following engine and machine models:

• Engine Models: Caterpillar 320B, 320C (Diesel)
• Machine Applications:
  • Excavators: Caterpillar E320, E320B, E320D series

Please confirm your specific machine serial number and alternator mounting configuration for compatibility verification.

Global Supply & Distribution

We offer worldwide shipping capabilities to support international B2B buyers. Our major markets include:

• North America: Rapid delivery to major ports and industrial centers in the USA, Canada, and Mexico.
• Europe: Efficient logistics to key distribution hubs in Germany, UK, Netherlands, and France.
• Asia-Pacific: Direct service to Australia, Japan, South Korea, and Southeast Asian markets.
• Middle East & Africa: Reliable shipping to UAE, Saudi Arabia, South Africa, and Nigeria.

With extensive export experience, we ensure compliance with international trade regulations and provide professional documentation for customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities in Guangdong, China, adhering to strict quality control processes.
• Testing: Each alternator undergoes a comprehensive machinery test report and video outgoing inspection to verify electrical output and mechanical function before shipment.
• Warranty: Backed by a 6-month warranty against manufacturing defects, providing peace of mind for your heavy equipment investment.
• OEM Service: Custom OEM services are available for bulk orders or specialized requirements.

FAQ

Q1: Is this alternator a direct replacement for my Caterpillar E320B excavator?

This alternator is designed to match the OEM specifications for Caterpillar 320B and 320C engines commonly used in E320B excavators. However, due to potential variations in machine configurations (e.g., serial number breaks, special applications), we strongly recommend comparing the physical dimensions, mounting bracket alignment, and pulley type (12PK) with your original alternator before installation.

Q2: What maintenance is required for this alternator?

Regular inspection of the drive belt tension and condition is crucial. Ensure the 12PK serpentine belt is free from cracks, glazing, or wear. Keep the alternator housing and cooling vents clean from debris and mud buildup to prevent overheating. Check all electrical connections periodically for corrosion or looseness to ensure optimal charging performance.

Q3: What should I do if the alternator does not charge after installation?

First, verify all electrical connections are secure, including the main B+ terminal, ground wire, and field/excitation wire. Check that the battery is in good condition and properly charged. Ensure the serpentine belt is correctly routed on the 12PK pulley and is tensioned to the manufacturer’s specification. If the issue persists, test the alternator’s output voltage at the battery terminals (should be approximately 28V when running). If output is low, consult your machine’s service manual for further diagnostics.