4TNE84 Alternator 12V 55A 119836-77200 for Yanmar Diesel Engine Parts

Product Details

Product Overview

This high-performance alternator, identified by part number 119836-77200, is specifically designed for integration with the Yanmar 4TNE84 diesel engine. As a critical component of the engine’s electrical charging system, this 12V 55A unit ensures a consistent and reliable power supply for starting, lighting, and auxiliary systems. Sourced from, a trusted name in engine component manufacturing based in Guangdong, China, this alternator meets OEM size and performance specifications, making it a direct replacement for your heavy-duty equipment.

Commonly applied in construction machinery, industrial power units, agricultural tractors, marine gensets, and material handling equipment, this alternator is engineered to withstand the demanding operating conditions of professional environments. Whether you are maintaining a fleet of excavators or managing a backup generator, this component offers a dependable solution for keeping your Yanmar-powered machinery operational.

Key Features & Benefits

• Precision Fit for Yanmar 4TNE84: Designed as a direct replacement, ensuring easy installation without modifications, reducing downtime.
• Reliable 12V 55A Output: Provides sufficient amperage to charge batteries and power electrical loads in medium-duty diesel applications.
• OEM Standard Size: Manufactured to original equipment manufacturer dimensions, guaranteeing compatibility with existing mounting brackets and pulley systems.
• Rigorous Quality Testing: Each unit undergoes a machinery test report and video outgoing inspection, verifying operational integrity before shipment.
• Durable Construction: Built with robust materials to resist vibration, heat, and moisture common in construction, agricultural, and marine environments.
• 6-Month Warranty: Backed by a standard warranty period, providing peace of mind for your investment. After-warranty online support is also available.

Technical Specifications

OEM Cross-Reference

This alternator is a direct replacement for the following original equipment manufacturer (OEM) part numbers. Verify your existing part number for compatibility before ordering.

• Yanmar OEM: 119836-77200

Compatibility

This alternator is commonly used for the following engine models and applications. Please confirm your specific engine model and alternator mounting configuration to ensure a correct fit.

• Engine Model: Yanmar 4TNE84
• Applications: Construction machinery, Industrial equipment, Agricultural tractors, Gensets (generators), Marine engines, Material handling equipment (forklifts, loaders)

Global Supply & Distribution

leverages a robust global supply chain to deliver this Yanmar alternator to buyers worldwide. We specialize in fast, reliable shipping to major industrial hubs and ports across North America, Europe, Southeast Asia, the Middle East, Africa, and Oceania.

Our export experience ensures that all shipments are handled with proper documentation and customs compliance, minimizing delays. Whether you require a single unit for a repair or bulk quantities for fleet maintenance, our logistics network is equipped to meet your delivery deadlines, including expedited shipping options to key markets like the United States, Germany, Japan, and the UAE.

Quality Assurance

Every alternator is manufactured in a facility that adheres to rigorous quality control standards. Key quality processes include:

• Machinery Test Report: Provided with each unit to confirm electrical output and performance under load.
• Video Outgoing Inspection: A visual and functional inspection is recorded and available upon request to verify product condition before dispatch.
• Warranty: All units are covered by a 6-month warranty against manufacturing defects. Our technical team provides online support for any post-warranty inquiries.

FAQ

Q: How can I confirm this alternator (119836-77200) will fit my Yanmar 4TNE84 engine?

A: While this alternator is specifically designed for the 4TNE84 model, we recommend comparing the physical dimensions (mounting ear spacing, shaft diameter, and pulley type) with your current unit. Cross-referencing your existing part number with our OEM number (119836-77200) is the most reliable method. If you have a different Yanmar model, please contact our support team with your engine serial number for assistance.

Q: What maintenance is required for this alternator?

A: Regular maintenance is minimal but important for longevity. Periodically check the alternator mounting bolts for tightness and ensure the drive belt is properly tensioned and free from wear. Keep the alternator clean and free from excessive dirt, oil, or moisture, which can hinder cooling and electrical performance. Ensure all electrical connections are clean and corrosion-free.

Q: Is this a new unit, and what is the expected lifespan?

A: Yes, this is a brand new, manufactured unit, not a rebuilt or used part. The lifespan of an alternator varies significantly based on operating conditions. In standard industrial or agricultural applications with proper maintenance, you can expect a long service life. The 6-month warranty covers any initial manufacturing defects, and the robust construction is designed for extended durability in demanding environments.