Connecting Rod 729402-23100 129150-23010 for Yanmar 4TNV84 4TNE84 Diesel Engine Parts

Product Details

Product Overview

This high-quality connecting rod (conrod) is a precision-engineered replacement component specifically designed for Yanmar 4TNV84 and 4TNE84 diesel engines. The part is identified by OEM numbers 729402-23100 and 129150-23010, ensuring accurate cross-referencing for maintenance and repair operations. This connecting rod serves as a critical internal engine component, transferring linear piston motion to rotational crankshaft movement in industrial diesel power units.

Manufactured to meet original equipment specifications, this conrod is commonly used in Yanmar-powered excavators, industrial machinery, and agricultural equipment from the 1983-1994 production era. Its robust construction ensures reliable performance under demanding working conditions typical of construction and earthmoving applications. For buyers seeking genuine-spec replacement parts with verified fitment data, this component offers a direct solution for engine rebuilds and overhauls.

Key Features & Benefits

• Precision Fitment – Engineered to exact OEM specifications for Yanmar 4TNV84 and 4TNE84 engines, minimizing installation complications and ensuring proper clearances
• Verified Part Numbers – Cross-references to multiple OEM numbers (729402-23100, 129150-23010) for easy identification and ordering confidence
• Durable Construction – Manufactured from high-strength materials to withstand extreme combustion pressures and high rotational speeds in diesel applications
• Long Service Life – Heat-treated and precision-machined surfaces reduce wear on bearing journals and wrist pin connections
• Direct Replacement – Drop-in ready component for engine rebuilds, requiring no modifications for standard Yanmar 4TNV84/4TNE84 installations
• Industrial Grade – Suitable for heavy-duty cycles in excavators, loaders, and other construction machinery where engine reliability is critical
• Warranty Protection – Backed by 6-month warranty with video technical support available post-sale for installation guidance

Technical Specifications

OEM Cross-Reference

This connecting rod directly replaces the following original equipment manufacturer numbers:

• Yanmar: 729402-23100
• Yanmar Alternative: 129150-23010

Note: Always verify your engine’s serial number and existing part markings before ordering. While these numbers are primary cross-references for 4TNV84/4TNE84 applications, regional variations may exist.

Compatibility

This connecting rod is designed for use with the following engine configurations:

• Engine Models: Yanmar 4TNV84, Yanmar 4TNE84
• Production Era: 1983-1994
• Common Applications: Excavators, wheel loaders, industrial generators, agricultural tractors, and material handling equipment powered by these Yanmar diesel engines

Important Fitment Note: Compatibility is based on engine model specifications. Always confirm your engine’s exact model code and serial number before purchasing. This part is not guaranteed for all Yanmar 4TNV84 variants without verification of connecting rod dimensions and pin bore size.

Global Supply & Distribution

We maintain extensive inventory for international B2B customers requiring Yanmar diesel engine components. Our logistics network supports worldwide shipping to major industrial regions including:

• North America: Regular shipments to US ports (Los Angeles, Houston, New York) and Canadian industrial centers (Toronto, Vancouver)
• Europe: Fast delivery to Rotterdam, Hamburg, Antwerp, and Mediterranean ports serving construction equipment dealers
• Asia-Pacific: Direct supply to Singapore, Shanghai, Tokyo, and Australian distribution hubs for regional equipment fleets
• Middle East & Africa: Service to Dubai, Jeddah, and major African ports supporting mining and infrastructure projects

Export documentation and customs compliance support are provided for all international orders. Typical delivery time is upon payment receipt, with expedited options available for urgent repair requirements.

Quality Assurance

Each connecting rod undergoes dimensional inspection and material verification before shipment. Key quality measures include:

• Manufacturing Standard: Produced to meet or exceed OEM specifications for hardness, tensile strength, and dimensional accuracy
• Testing: Random sample testing for crack detection, weight matching, and surface finish conformity
• Warranty: 6-month warranty against manufacturing defects in materials and workmanship
• Post-Sale Support: Video technical assistance available for installation verification and troubleshooting

While this part is manufactured to original specifications, customers are advised to verify compatibility with their specific engine variant before installation. Proper torquing procedures and lubrication during assembly are critical for optimal performance.

FAQ

Q: How do I confirm this connecting rod fits my Yanmar 4TNV84 engine?
A: Verify your engine’s model code stamped on the engine block or nameplate. For 4TNV84 engines, measure the connecting rod big-end bore diameter and wrist pin size. Compare with your existing part’s markings – the numbers 729402-23100 or 129150-23010 should match. If dimensions differ, contact us with your engine serial number for cross-reference verification.

Q: What installation precautions should I take with this conrod?
A: Always install new connecting rod bolts (not included) and follow Yanmar’s factory torque specifications. Ensure proper bearing clearance using plastigage. The rod must be installed with the correct orientation – markings on the rod cap and beam indicate assembly direction. Lubricate all bearing surfaces with assembly grease before installation.

Q: Can this connecting rod be used in high-performance or turbocharged 4TNV84 applications?
A: This rod is designed for naturally aspirated and standard industrial applications. For turbocharged or modified engines producing significantly higher cylinder pressures, we recommend consulting with our technical team to verify if upgraded rods are required. Standard 4TNV84 engines in excavators operate within safe parameters for this component.