4089405
Connecting Rod Bearing Kit
Cummins®

Introduction

The Cummins 4089405 Connecting Rod Bearing Kit is engineered for heavy-duty truck engines, facilitating smooth operation between the connecting rod and the crankshaft journal. This kit contributes to maintaining engine integrity and efficiency by minimizing friction and wear on these components.

Basic Concepts of Connecting Rod Bearing Kits

Connecting rod bearings enable the connecting rod to rotate smoothly around the crankshaft journal, providing a low-friction surface for efficient power transfer from the piston to the crankshaft. The condition and quality of these bearings significantly influence engine performance and durability, ensuring precise alignment and smooth operation of the engine’s moving parts.

Role of the 4089405 Connecting Rod Bearing Kit in Truck Operation

In heavy-duty truck engines, the 4089405 Connecting Rod Bearing Kit fits snugly between the connecting rod and the crankshaft journal, minimizing friction and contributing to engine efficiency and longevity. Its design ensures seamless interaction with other engine components, maintaining performance under demanding conditions.

Key Features

The Cummins 4089405 Connecting Rod Bearing Kit is characterized by high-quality materials and precise design. These bearings are made from materials offering excellent resistance to wear and corrosion, ensuring durability in harsh environments. The kit includes features such as optimized clearances and surface finishes, which reduce friction and improve engine efficiency.

Benefits

Using the Cummins 4089405 Connecting Rod Bearing Kit can enhance engine performance and durability. By reducing friction, these bearings help maintain efficiency and can extend maintenance intervals, potentially leading to cost savings for fleet operators due to less frequent replacements and maintenance checks.

Troubleshooting and Maintenance

Common issues with connecting rod bearings include excessive wear, noise, or failure due to contamination or improper installation. Regular maintenance practices, such as checking clearances and ensuring the cleanliness of the lubrication system, are recommended. Diagnosing problems may involve listening for unusual noises, checking for wear signs, and performing oil analysis to detect contaminants or metal particles indicating bearing distress.

About Cummins

Cummins Inc. is a global leader in designing, manufacturing, and distributing engines, filtration, and power generation products. Known for quality and innovation, Cummins is committed to producing high-quality automotive components that meet the demanding requirements of heavy-duty applications. The company’s history of excellence and dedication to customer satisfaction underscores its position as a trusted provider of engine components.

Role of Part 4089405 Connecting Rod Bearing Kit in Engine Systems

The 4089405 Connecting Rod Bearing Kit is integral to maintaining and overhauling engine systems. When integrated with a Kit Overhaul, it ensures proper lubrication and stress resistance of the connecting rods. This kit facilitates smooth piston movement, vital for engine efficiency and longevity.

In conjunction with an Overhaul Conversion Kit, the 4089405 plays a significant role in upgrading or modifying an engine. It provides necessary support and reduces friction, allowing the engine to operate more smoothly post-conversion.

When used with an Overhaul Kit, the connecting rod bearing kit is instrumental in restoring the engine to optimal condition. It ensures seamless interaction of engine components, resulting in improved reliability and performance after the overhaul process.

Overall, the 4089405 Connecting Rod Bearing Kit is a key element in ensuring engine systems function efficiently, whether during routine maintenance, conversion, or complete overhaul procedures.

Components of Cummins Connecting Rod Bearing Kit (4089405)

Connecting Rod Bearings

• 4925971 - Connecting Rod Bearing: This bearing provides a low-friction interface between the connecting rod and the crankshaft journal, facilitating smooth rotation and reducing wear on the crankshaft.

• 4925975 - Connecting Rod Bearing: Similar to the 4925971, this bearing is engineered to withstand high loads and temperatures, ensuring durability and reliability in engine operation. The presence of two different part numbers suggests the kit may include bearings for different positions or applications within the engine.

Conclusion

The Cummins 4089405 Connecting Rod Bearing Kit is a vital component for maintaining and enhancing the performance of heavy-duty truck engines. Its high-quality materials, precise design, and role in reducing friction contribute to engine efficiency, durability, and longevity. Regular maintenance and proper installation are crucial for optimal performance and to avoid common issues such as excessive wear or failure.