3406 Main Bearing & Con Rod Bearing 4W5492 9Y9497 for Caterpillar Engines

Product Details

Product Overview

This set of main bearings and connecting rod bearings, referencing part numbers 4W5492 and 9Y9497, is specifically engineered for the Caterpillar 3406 diesel engine platform. As a critical component for engine rebuilds and overhauls, these bearings provide the precise clearance and load-bearing capacity required for the demanding 3406 series.

Manufactured to OEM dimensional standards, this bearing set ensures a reliable fit for a wide range of heavy equipment, including excavators, bulldozers, and trucks that rely on the Caterpillar 3406 engine. Whether you are a fleet maintenance manager or an equipment dealer, these parts offer a direct replacement solution for restoring engine performance.

Key Features & Benefits

• OEM Standard Dimensions: Manufactured to match the exact size specifications of the original Caterpillar parts, ensuring proper oil clearance and crankshaft support.
• Durable Material Composition: Constructed from high-strength steel-backed materials with a precision overlay, designed to withstand high compression and friction in turbocharged diesel applications.
• Direct Fit Replacement: Designed as a direct drop-in replacement for the 3406 engine block and connecting rods, reducing installation time and the need for modifications.
• Complete Set: Includes both main bearings and connecting rod bearings (referencing 4W5492 and 9Y9497) to ensure a comprehensive overhaul solution.
• Reliable Performance: Provides consistent hydrodynamic lubrication film support, reducing wear on the crankshaft journals and extending engine life.
• Cost-Effective Solution: Offers a high-quality aftermarket alternative to genuine OEM parts without compromising on fit or reliability.

Technical Specifications

OEM Cross-Reference

This product is a direct replacement for the following OEM part numbers:

• Caterpillar Main Bearing: 4W5492
• Caterpillar Connecting Rod Bearing: 9Y9497

Note: Always verify your engine’s specific bearing grade (standard, 0.25mm, 0.50mm) before ordering.

Compatibility

These bearings are commonly used for the following applications:

• Engine: Caterpillar 3406 (N/A, B, C, DIT, etc.)
• Equipment: Excavators, Bulldozers, Wheel Loaders, Trucks, Forklifts, Buses, and Generator Sets.

Global Supply & Distribution

We maintain a robust supply chain to serve international B2B buyers efficiently. Our stock is strategically located to ensure fast dispatch to major global ports and industrial hubs.

• Markets Served: North America (USA, Canada, Mexico), Europe (Germany, Netherlands, UK, France), Asia-Pacific (Australia, Singapore, UAE), and Middle East (Saudi Arabia, UAE).
• Shipping: We offer express (DHL, FedEx, UPS) and sea freight (FCL/LCL) options. Bulk orders for heavy equipment dealers and rebuild centers are welcome.
• Trade Compliance: Our export documentation is fully compliant with international trade standards, ensuring smooth customs clearance.

Quality Assurance

Every batch of bearings undergoes rigorous inspection to meet industry standards.

• Testing: Machinery Test Report and Video Outgoing Inspection are provided upon request.
• Certification: Manufacturing processes follow ISO quality management principles.
• Warranty: Backed by a 6-month warranty against manufacturing defects in material and workmanship.

FAQ

Q: Will these bearings fit my specific 3406 engine model?

A: These bearings are designed for the standard size 3406 engine. However, Caterpillar engines often have different bearing grades (e.g., standard, 0.25mm undersize). Please check the markings on your old bearings (usually stamped on the back) to confirm the size. If your crankshaft has been ground, you will need the corresponding undersize bearings.

Q: What is the difference between part 4W5492 and 9Y9497?

A: 4W5492 refers to the main bearing set installed in the engine block to support the crankshaft. 9Y9497 refers to the connecting rod bearings that fit between the connecting rod and the crankshaft journal. This product includes both sets for a complete bottom-end overhaul.

Q: Do I need to replace the thrust washers or seals with these bearings?

A: This product specifically includes the main and connecting rod bearings. For a complete rebuild, we recommend also replacing the main bearing seals, thrust washers, and connecting rod bolts (which are often torque-to-yield). Please consult your engine service manual for the complete overhaul procedure.