3019174
Main Bearing
Cummins®

Introduction

The Cummins 3019174 Main Bearing is a critical component in the engine assembly of commercial trucks. Its primary function is to support the crankshaft, enabling it to rotate smoothly within the engine block. This bearing is essential for the efficient and reliable operation of the truck’s engine, contributing to overall performance and durability ².

Basic Concepts of Main Bearings

Main bearings are components that support the crankshaft within the engine block. They facilitate the smooth rotation of the crankshaft by reducing friction between the crankshaft and the engine block. This reduction in friction is vital for the engine’s performance, as it allows for efficient power transmission and minimizes wear on engine components. The durability and reliability of the engine are significantly influenced by the quality and condition of its main bearings ¹.

Role of the 3019174 Main Bearing in Truck Operation

The Cummins 3019174 Main Bearing specifically supports the crankshaft in commercial truck engines. By providing a low-friction surface, it enables the crankshaft to rotate with minimal resistance. This smooth operation is fundamental to the engine’s ability to convert fuel into mechanical energy efficiently. The bearing’s design and materials are tailored to withstand the high loads and speeds characteristic of truck engines, ensuring consistent performance under demanding conditions ³.

Key Features of the 3019174 Main Bearing

The Cummins 3019174 Main Bearing is engineered with several key features that enhance its performance and reliability. Its design incorporates high-quality materials that offer superior strength and durability. The bearing’s construction includes precision-machined surfaces to ensure a perfect fit within the engine block, minimizing clearances and maximizing efficiency. Additionally, advanced coatings may be applied to the bearing surfaces to further reduce friction and protect against wear ⁴.

Benefits of Using the 3019174 Main Bearing

Utilizing the Cummins 3019174 Main Bearing in truck engines offers several benefits. These include improved engine efficiency due to reduced friction, which allows for smoother crankshaft rotation and better power transmission. The bearing’s design contributes to reduced wear on engine components, leading to enhanced durability and longer engine life. Furthermore, the reliable performance of the 3019174 Main Bearing supports the overall efficiency and reliability of the truck’s engine ².

Troubleshooting Common Issues with Main Bearings

Identifying and addressing common issues with main bearings is important for maintaining engine performance. Symptoms of main bearing problems may include unusual noises from the engine, increased oil consumption, or visible signs of wear on the bearing surfaces. Regular inspections and maintenance can help identify these issues early. Addressing problems promptly, whether through repair or replacement, is crucial to prevent further engine damage and ensure continued reliable operation ³.

Maintenance Tips for Main Bearings

To ensure the optimal performance and longevity of main bearings, regular maintenance is recommended. This includes routine inspections to check for signs of wear or damage, ensuring proper lubrication to reduce friction and wear, and timely replacement of bearings that show signs of excessive wear. Adhering to manufacturer-recommended maintenance schedules and using high-quality lubricants can significantly contribute to the durability and efficiency of the engine’s main bearings ⁴.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and power generation products. With a strong reputation in the commercial truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range and technological advancements have established it as a trusted partner for businesses relying on reliable and efficient power solutions.

Cummins Main Bearing Part 3019174 Compatibility

The Cummins main bearing part number 3019174 is designed to fit a variety of engines, ensuring reliable performance across multiple platforms. Here is a breakdown of its compatibility with the listed engines:

G855 Series

• G855
• G855 CM558
• GTA855 CM558 (CM2358)
• G101

The G855 series engines, including the G855, G855 CM558, GTA855 CM558 (CM2358), and G101, all utilize the Cummins main bearing part number 3019174. This part is engineered to provide optimal support and durability for these engines, ensuring smooth operation and longevity.

N14 Series

• N14 CELECT
• N14 CELECT PLUS
• N14 G
• N14 MECHANICAL

The N14 series engines, which include the N14 CELECT, N14 CELECT PLUS, N14 G, and N14 MECHANICAL, are also compatible with the Cummins main bearing part number 3019174. This bearing is specifically designed to meet the demands of these engines, providing essential support and reducing wear.

NH/NT 855 Series

• NH/NT 855

The NH/NT 855 engine is another model that is compatible with the Cummins main bearing part number 3019174. This bearing ensures that the engine operates efficiently and reliably.

QSN14 Series

• QSN14 CM876 N103
• QSNT14 CM876 N102

The QSN14 series engines, specifically the QSN14 CM876 N103 and QSNT14 CM876 N102, also use the Cummins main bearing part number 3019174. This bearing is integral to maintaining the performance and integrity of these engines.

Role of Part 3019174 Main Bearing in Engine Systems

The Part 3019174 Main Bearing is integral to the efficient operation of various engine systems. It facilitates smooth rotation of the crankshaft within the engine block, reducing friction and wear.

Integration with Engine Components

• Cylinder Block and Short Block: The main bearing is positioned between the crankshaft and the cylinder block or short block. This arrangement ensures that the crankshaft is properly aligned and supported, allowing for consistent engine performance.

• Engine Overhaul Kit and Spares Kit: When performing an engine overhaul, the main bearing is often included in the overhaul kit to ensure that the crankshaft is properly supported during reassembly. Similarly, in an engine spares kit, the main bearing is a key component for maintaining engine integrity during repairs.

• Base Parts and Bearing/Gasket Kit: The main bearing works in conjunction with base parts and bearing/gasket kits to create a sealed and efficient environment within the engine block. Proper sealing is essential for maintaining oil pressure and preventing leaks.

• Cyl Short NTC-300, NTC-350, NTC-400: These specific cylinder blocks require main bearings to support the crankshaft. The main bearing ensures that the crankshaft operates smoothly within these cylinder configurations, contributing to the overall efficiency of the engine.

• Piston/Liner (PDC) and Crankshaft: The interaction between the piston/liner assembly and the crankshaft is smoothed by the main bearing. This reduces wear on both components and enhances the longevity of the engine.

• Main Bearing Sets (Standard, Special, Stud): Depending on the engine’s requirements, different types of main bearing sets may be used. These sets work together with Part 3019174 to provide the necessary support and reduce friction.

• Short Block Assembly Kit and Engine Kit: In a short block assembly kit or engine kit, the main bearing is a fundamental component. It ensures that the crankshaft is correctly installed and functions efficiently within the engine block.

• EBM: Block and Engine: The main bearing is essential for the proper functioning of the engine block module (EBM) and the overall engine. It supports the crankshaft, allowing it to rotate smoothly and efficiently.

Conclusion

In summary, the Part 3019174 Main Bearing plays a significant role in various engine systems by providing necessary support and reducing friction, thereby contributing to the engine’s overall performance and longevity. Regular maintenance and timely replacement of this Cummins part are crucial for ensuring the efficient and reliable operation of commercial truck engines.