4332523
Main Bearing Cap
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$919.95 $1,094.74

Oversize Item

This is an oversize product. Additional shipping fees may apply.

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The 4332523 Main Bearing Cap, manufactured by Cummins, is a component designed for heavy-duty truck engines. Cummins, a well-established name in the automotive industry, is known for its robust and reliable diesel engines and components. This part is significant in the context of heavy-duty truck engines due to its role in maintaining engine stability and performance 1.

Basic Concepts of Main Bearing Caps

A Main Bearing Cap is a part of the engine that secures the main bearings in place. These caps work in conjunction with the crankshaft and main bearings to ensure smooth and efficient engine operation. The main bearings support the crankshaft, allowing it to rotate with minimal friction. The main bearing caps hold the bearings in place, ensuring they remain aligned and function correctly under the stresses of engine operation 2.

Role of the 4332523 Main Bearing Cap in Truck Operation

This Cummins part plays a specific role in the operation of a truck engine. It contributes to engine stability by securely holding the main bearings in place, which in turn support the crankshaft. This secure fit helps maintain the alignment and balance of the crankshaft, which is vital for the smooth operation of the engine. Proper installation and maintenance of the main bearing cap are important for ensuring the longevity and performance of the engine 3.

Key Features of the 4332523 Main Bearing Cap

The 4332523 is designed with specific characteristics that enhance its durability and efficiency. It is constructed from high-quality materials that can withstand the high stresses and temperatures encountered in heavy-duty truck engines. The cap is engineered with precise tolerances to ensure a perfect fit with the main bearings and crankshaft. Additionally, it may feature unique design elements that further improve its performance and longevity.

Benefits of Using the 4332523 Main Bearing Cap

Using this part offers several advantages. Its high-quality construction and precise engineering contribute to improved engine performance and reliability. The cap’s durable materials and design help ensure longevity, reducing the need for frequent replacements. Additionally, its secure fit and alignment with the main bearings and crankshaft contribute to the overall stability and efficiency of the engine.

Installation and Maintenance

Proper installation of the 4332523 is important for ensuring optimal performance and longevity. This includes following torque specifications and alignment procedures to ensure the cap is securely and correctly fitted. Regular maintenance, such as checking for signs of wear or damage, can help ensure the cap continues to function effectively. This may involve periodic inspections and, if necessary, replacement of the cap to maintain engine performance.

Troubleshooting Common Issues

Common problems associated with main bearing caps can include wear and tear or improper installation. Signs of these issues may include unusual engine noises, reduced performance, or increased wear on other engine components. Troubleshooting these problems may involve inspecting the cap for signs of damage, ensuring it is correctly installed, and replacing it if necessary. Regular maintenance and inspections can help identify and address these issues before they lead to more significant problems.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel engines and components. The company has a long history of innovation and quality in the automotive industry, particularly in the manufacture of diesel engines. Cummins is known for its robust and reliable products, which are used in a variety of applications, from heavy-duty trucks to industrial equipment. The company’s reputation for quality and performance makes it a trusted name in the industry.

Cummins Engine Main Bearing Cap 4332523

The Cummins engine part 4332523, identified as a Main Bearing Cap, is a critical component in the engine’s assembly, ensuring the smooth operation of the crankshaft. This part is designed to fit seamlessly within the engine architecture of the Cummins QSK95 series, specifically the CM2350 K111 and CM2350 K113 models.

Compatibility with Cummins QSK95 Engines

The Main Bearing Cap 4332523 is engineered to fit the following Cummins QSK95 engines:

  • QSK95 CM2350 K111
  • QSK95 CM2350 K113

These engines are part of the Cummins QSK95 series, which is known for its robust design and reliability in various industrial applications. The part 4332523 is integral to the engine’s performance, providing a stable interface between the crankshaft and the engine block.

Installation and Function

The Main Bearing Cap 4332523 is installed in the engine block, where it supports the main bearing and helps distribute the load from the crankshaft. This ensures that the crankshaft remains properly aligned and reduces friction, which is essential for the engine’s longevity and efficiency.

Precision and Quality

As a Cummins-manufactured part, the Main Bearing Cap 4332523 adheres to stringent quality standards. This ensures that it fits perfectly within the specified engine models, providing reliable performance and durability. The precision engineering of this part is crucial for maintaining the integrity of the engine’s operation.

Application in Engine Maintenance

When performing maintenance on the Cummins QSK95 CM2350 K111 and CM2350 K113 engines, the Main Bearing Cap 4332523 should be inspected for any signs of wear or damage. Proper installation and maintenance of this part are essential for ensuring the engine operates efficiently and reliably.

Role of Part 4332523 Main Bearing Cap in Engine Systems

The part 4332523 Main Bearing Cap is an integral component in the assembly and operation of engine systems, particularly when integrated with the cylinder block and cylinder block kit.

When installed on the cylinder block, the main bearing cap works in conjunction with the main bearings to support the crankshaft. This support is essential for maintaining the crankshaft’s alignment and reducing friction as it rotates. The precision fit of the main bearing cap ensures that the crankshaft operates smoothly, which is vital for the engine’s overall performance and longevity.

In the context of a cylinder block kit, the main bearing cap is often included to ensure that all components are compatible and correctly sized. The kit typically contains all necessary parts for a complete cylinder block assembly, and the main bearing cap plays a significant role in this setup. It secures the main bearings in place, allowing for efficient load distribution across the crankshaft journals. This setup is fundamental for the engine’s structural integrity and operational efficiency.

The interaction between the main bearing cap and these components highlights its importance in maintaining the engine’s mechanical balance and ensuring that all moving parts function harmoniously.

Conclusion

The 4332523 Main Bearing Cap is a critical component in the operation of heavy-duty truck engines, particularly those manufactured by Cummins. Its role in securing the main bearings and supporting the crankshaft is essential for maintaining engine stability, performance, and longevity. Proper installation, maintenance, and understanding of its function are key to ensuring the efficient operation of the engine.


  1. Reif, Konrad Ed. Fundamentals of Automotive and Engine Technology: Standard Drives, Hybrid Drives, Brakes, Safety Systems. Springer Vieweg, 2014.

  2. Majewski, Addy, and Hannu Jaskelainen. Diesel Emissions and Their Control: Second Edition. SAE International, 2023.

  3. Hilgers, Michael. Vocational Vehicles and Applications. Springer Nature, 2023.

SPECIFICATIONS

Package Dimensions
43.0 x 29.0 x 29.0 in
Weight
23 lbs
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.