3349256
Wear Sleeve
Cummins®

The Cummins 3349256 Wear Sleeve is a component designed for use in heavy-duty truck engines. Its primary role is to protect certain engine parts from excessive wear and tear, thereby contributing to the overall efficiency and longevity of the engine. A wear sleeve, in general, is a cylindrical component that fits over or into another part to reduce friction and wear. In the context of mechanical systems, wear sleeves are often used to extend the life of components that are subject to high stress and friction ¹.

Purpose and Function

This Cummins part is specifically engineered to fit within the heavy-duty truck engines manufactured by Cummins. It plays a role in protecting critical engine components from wear, which can occur due to the high pressures and temperatures present in diesel engines. By providing a sacrificial layer that absorbs wear, the sleeve helps maintain the integrity of the engine’s internal components, contributing to smoother operation and potentially extending the intervals between maintenance cycles ².

Key Features

The Cummins 3349256 Wear Sleeve is characterized by its robust material composition, which is designed to withstand the harsh conditions within a diesel engine. It is crafted with precision to ensure a proper fit and optimal performance. The design attributes of the sleeve include features that enhance its durability and effectiveness in reducing wear on engine components. These may include specific dimensions, surface treatments, or manufacturing processes that contribute to its performance ³.

Benefits

The use of the Cummins 3349256 Wear Sleeve offers several advantages. It helps in reducing the wear on engine components, which can lead to extended maintenance intervals and lower overall maintenance costs. Additionally, by protecting critical parts from wear, the sleeve can contribute to improved engine performance and reliability. The extended life of engine components also means that the engine may operate more efficiently over time.

Installation and Compatibility

Proper installation of the Cummins 3349256 Wear Sleeve is important to ensure it functions as intended. Installation guidelines may include specific steps to follow, such as ensuring the engine is clean and free of debris before fitting the sleeve. It is also important to verify compatibility with the specific Cummins engine model to ensure optimal performance and protection of the engine components.

Maintenance and Troubleshooting

Regular maintenance of the Cummins 3349256 Wear Sleeve is key to ensuring its continued effectiveness. This may involve periodic inspection for signs of wear or damage, and replacing the sleeve when necessary. Troubleshooting common issues may include identifying the cause of excessive wear, which could be due to factors such as improper installation, engine misalignment, or other mechanical issues.

Common Applications

The Cummins 3349256 Wear Sleeve is typically applied in the commercial trucking industry, where it is used in various Cummins engine models. It is particularly common in trucks that operate under demanding conditions, where the protection offered by the wear sleeve can significantly enhance the durability and performance of the engine.

Manufacturer Information

Cummins Inc. is a well-established company with a strong reputation in the diesel engine industry. The company is known for its commitment to quality and innovation, providing a range of engine solutions for various applications. Cummins’ history of developing reliable and efficient diesel engines has made it a trusted name among commercial truck operators and manufacturers.

Cummins Engine Part 3349256: Wear Sleeve Compatibility

The Cummins Wear Sleeve part number 3349256 is a critical component designed to fit seamlessly within various Cummins engine models. This part is engineered to provide durability and longevity, ensuring that the engine operates smoothly and efficiently.

QSK19 Series

• QSK19 CM850 MCRS
• QSK19 CM850

The Wear Sleeve part 3349256 is compatible with the QSK19 series engines, specifically those equipped with the CM850 model. These engines are known for their robust performance and reliability, making the Wear Sleeve an essential part for maintaining their operational integrity.

QSK50 Series

• QSK50 CM2150 K107
• QSK50 CM2150 MCRS
• QSK50 CM2150

The QSK50 series engines, including the CM2150 model, also benefit from the Wear Sleeve part 3349256. This part ensures that the engine’s moving parts operate with minimal friction, thereby extending the engine’s lifespan and enhancing its performance.

QSK60 Series

• QSK60 CM850 MCRS
• QSK60 G CM2358 K110
• QSK60 CM850

The QSK60 series engines, particularly those with the CM850 and CM2358 models, are designed to work optimally with the Wear Sleeve part 3349256. This part is crucial for maintaining the smooth operation of the engine’s internal components.

QSK95 Series

• QSK95 CM2350 K111
• QSK95 CM2350 K113

The QSK95 series engines, equipped with the CM2350 model, also require the Wear Sleeve part 3349256. This part is integral to the engine’s design, ensuring that it can handle high-stress conditions and maintain its efficiency over time.

Role of Part 3349256 Wear Sleeve in Engine Systems

The 3349256 Wear Sleeve is an integral component in various engine systems, facilitating efficient operation and longevity of the engine. Its application spans across multiple systems, each benefiting from the wear sleeve’s protective and functional attributes.

Auxiliary Cooling System

In the auxiliary cooling system, the wear sleeve is positioned at connection points between the auxiliary cooling inlet and outlet. This placement ensures a smooth flow of coolant, minimizing wear and tear on the connections. The wear sleeve acts as a buffer, absorbing vibrations and reducing the risk of leaks, which is essential for maintaining the system’s integrity and efficiency.

Cooling System Gasket Kit

When integrated into a cooling system gasket kit, the wear sleeve enhances the sealing capabilities between components. It provides an additional layer of protection against corrosion and wear, ensuring that the gaskets perform optimally over time. This is particularly important in environments where the cooling system is exposed to harsh conditions or high temperatures.

Heat Exchanger and Housing

In heat exchangers and thermostat housings, the wear sleeve plays a key role in maintaining the structural integrity of these components. By fitting snugly around critical connection points, it prevents direct metal-to-metal contact, which can lead to accelerated wear. This is vital for the consistent performance of the heat exchanger and thermostat housing, ensuring efficient heat transfer and temperature regulation.

Plumbing and Aftercooler Water System

Within the plumbing of the aftercooler water system, the wear sleeve is used to protect against the abrasive effects of water flow. It ensures that the plumbing remains intact, preventing leaks and maintaining the system’s efficiency. This is particularly important in systems where water is used to cool engine components, as any failure in the plumbing can lead to significant engine damage.

Thermostat Housing and Pump

In the thermostat housing and pump assemblies, the wear sleeve is employed to enhance durability and performance. It reduces the friction between moving parts, leading to smoother operation and extended component life. This is essential for the reliable functioning of the thermostat and pump, which are critical for maintaining engine temperature and ensuring proper coolant circulation.

Raw Water System

The raw water system benefits from the wear sleeve by protecting against the corrosive effects of raw water. It is often used in connections and fittings within this system, ensuring that the raw water does not cause premature degradation of the components. This is particularly important in marine engines, where the raw water system is constantly exposed to saltwater, which is highly corrosive.

Auxiliary Cooling and Engine Cooling Systems

In both auxiliary and primary engine cooling systems, the wear sleeve is utilized to enhance the reliability and efficiency of the cooling process. By fitting into various connection points and housings, it ensures that the cooling system operates smoothly, without the risk of leaks or component failure. This is essential for maintaining optimal engine temperature and preventing overheating, which can lead to severe engine damage.

Conclusion

The 3349256 Wear Sleeve, through its application in these diverse engine systems, demonstrates its versatility and importance in ensuring the smooth and efficient operation of engine components. Its role in protecting against wear, corrosion, and leaks is indispensable for the longevity and performance of the engine.