3TN72 Main Bearing & Connecting Rod Bearing Set for Yanmar Engine Parts Excavator

Product Details

Product Overview

This high-quality bearing set includes both main bearings and connecting rod bearings specifically designed for the Yanmar 3TN72 diesel engine. As a critical component for engine rebuilds and overhauls, this set ensures precise fitment and reliable performance for a wide range of heavy equipment applications.

Engineered to OEM specifications, these bearings provide the necessary clearance and oil retention for optimal crankshaft and connecting rod operation. Commonly used in excavators, forklifts, bulldozers, loaders, and other industrial machinery powered by the Yanmar 3TN72, this set is an essential part for maintaining engine integrity and longevity.

Each bearing is manufactured under strict quality controls, offering a direct replacement solution for worn or damaged engine components. The set includes all necessary bearings for a complete main and rod bearing replacement on the 3TN72 engine model.

Key Features & Benefits

• Precision Fitment: Manufactured to OEM size specifications for a direct, hassle-free replacement on Yanmar 3TN72 engines.
• Durable Construction: Made from high-quality materials designed to withstand heavy loads, high temperatures, and continuous operation in demanding environments.
• Complete Set: Includes both main bearings and connecting rod bearings, providing all necessary components for a full bearing replacement during an engine overhaul.
• Enhanced Engine Life: Proper bearing clearance and oil film retention reduce friction and wear, extending the service life of the crankshaft and connecting rods.
• Versatile Application: Suitable for a variety of equipment types including excavators, trucks, forklifts, bulldozers, buses, and loaders powered by the 3TN72 diesel engine.
• Cost-Effective Solution: Offers a reliable aftermarket alternative to OEM parts without compromising on quality or performance, providing excellent value for maintenance and repair operations.

Technical Specifications

OEM Cross-Reference

This bearing set is a direct aftermarket replacement for the following Yanmar OEM part numbers. Please verify your engine model and existing part numbers for compatibility.

• Yanmar Main Bearing Set: 119420-35100, 119420-35110
• Yanmar Connecting Rod Bearing: 119420-35030, 119420-35040

Note: This list is not exhaustive. Always cross-reference with your original part numbers for a guaranteed fit.

Compatibility

This product is specifically designed for the Yanmar 3TN72 diesel engine. It is commonly used for maintenance and repair in the following equipment types:

• Engine: Yanmar 3TN72 (Diesel)
• Vehicle/Equipment Applications: Excavators, Trucks, Forklifts, Bulldozers, Buses, Loaders, and other industrial machinery utilizing this engine model.

Fitment is based on the engine model. Always confirm your specific engine model and year before purchasing.

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast and reliable delivery to customers worldwide. Our distribution network covers key industrial regions, ensuring that critical engine parts reach you with minimal delay.

• Major Markets Served: North America, Europe, Southeast Asia, Middle East, Africa, and Oceania.
• Shipping Capabilities: We offer various shipping options including express courier (DHL, FedEx, UPS), air freight, and sea freight to major ports and industrial centers.
• Export Experience: With years of experience in international trade, we ensure all documentation and customs requirements are handled professionally for smooth cross-border transactions.
• Inventory Management: Stock is maintained in multiple locations to facilitate rapid dispatch and reduce lead times for our B2B clients.

Quality Assurance

Quality is paramount in the production of our engine components. Each bearing set undergoes rigorous inspection to meet industry standards.

• Manufacturing Standards: Produced in ISO-certified facilities, adhering to strict dimensional and material specifications.
• Testing Procedures: Products are subject to outgoing inspection, including dimensional checks and material verification. Video inspection is available upon request.
• Warranty: All sets come with a 6-month warranty against manufacturing defects, providing peace of mind for your repair or overhaul project.
• Traceability: Each batch is traceable through our quality management system, ensuring accountability and consistent quality control.

FAQ

Q1: How do I confirm that this bearing set fits my specific Yanmar 3TN72 engine?
A: This set is designed for the standard OEM size bearings for the Yanmar 3TN72 engine. To confirm fitment, check your engine’s serial number and compare the existing bearing part numbers (e.g., from your service manual or the old bearings) with the OEM cross-reference numbers listed above. If your engine has been previously modified or uses oversized bearings, this standard set may not be suitable.

Q2: What is the installation procedure for these main and connecting rod bearings?
A: Installation should be performed by a qualified diesel mechanic. The process generally involves: 1) Removing the oil pan, connecting rod caps, and main bearing caps. 2) Cleaning all mating surfaces thoroughly. 3) Installing the new bearing shells, ensuring the locating tabs fit into the grooves. 4) Applying assembly lube to the bearing surfaces. 5) Torquing the bearing caps to the manufacturer’s specifications using a torque wrench. 6) Checking crankshaft end-play and connecting rod side clearance. Always consult the Yanmar 3TN72 service manual for exact procedures and torque values.

Q3: What maintenance is recommended after installing new bearings to ensure longevity?
A: After installation, it is critical to perform a proper engine break-in procedure. This includes: 1) Filling the engine with the correct grade and quantity of diesel engine oil. 2) Running the engine at varying, low RPMs for the first hour without heavy load. 3) Checking and maintaining proper oil pressure throughout the break-in period. 4) Changing the oil and oil filter after the initial break-in period (typically 50-100 hours) to remove any break-in wear particles. 5) Regularly monitoring oil pressure and listening for unusual engine noises thereafter.