4934280
Sealing Washer
Cummins®

Introduction

The Sealing Washer 4934280 by Cummins is designed to serve a specific purpose within the mechanical systems of commercial trucks. Its primary function is to ensure the integrity of seals in various applications, contributing to the overall efficiency and reliability of truck operations. This component is integral to maintaining the performance standards expected in commercial trucking, where durability and consistent operation are paramount.

Basic Concepts of Sealing Washers

Sealing washers are mechanical components used to create a seal between two surfaces, preventing the leakage of fluids or gases. They function by filling the gap between mating surfaces, ensuring that no fluid or gas can escape. In mechanical systems, sealing washers are commonly employed in fluid systems, such as hydraulic and fuel systems, to maintain pressure and prevent contamination. Their application is widespread across various industries, including automotive and heavy-duty truck manufacturing ¹.

Role of Sealing Washer 4934280 in Truck Operations

In the context of commercial trucks, the Sealing Washer 4934280 plays a role in ensuring the sealing integrity of specific components within the truck’s systems. It is typically placed in areas where fluid transfer occurs, such as in fuel lines or hydraulic systems. The washer interacts with other components by providing a barrier that prevents leaks, thereby maintaining system pressure and efficiency. Its correct placement and condition are vital for the smooth operation of the truck’s systems ².

Key Features

The Sealing Washer 4934280 is characterized by several key features that enhance its performance. It is made from materials that offer resistance to wear and corrosion, ensuring durability in demanding environments. The design specifications of this washer include precise dimensions that allow it to fit snugly in its intended applications, providing an effective seal. Additionally, any unique attributes, such as special coatings or reinforcements, contribute to its ability to withstand high pressures and temperatures.

Benefits

The incorporation of the Sealing Washer 4934280 into truck operations offers several benefits. It contributes to improved efficiency by ensuring that systems operate under the correct pressure, without leaks. Its durability means that it can withstand the rigors of commercial truck use, reducing the need for frequent replacements. Reliability is enhanced as the washer helps maintain the integrity of seals, preventing unexpected failures that could lead to downtime.

Troubleshooting and Maintenance

To ensure the longevity and optimal performance of the Sealing Washer 4934280, regular maintenance and troubleshooting are recommended. Common issues may include wear and tear or damage from exposure to harsh conditions. Inspections should be conducted regularly to check for signs of degradation or failure. Maintenance tips include keeping the washer clean and free from contaminants that could compromise its sealing ability. In cases of damage or wear, replacement with an identical part is advised to maintain system integrity ³.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the commercial truck industry. Its product range includes engines, powertrain components, and aftermarket parts, all designed to meet the demanding requirements of commercial and industrial applications. Cummins’ commitment to excellence is reflected in its extensive portfolio of reliable and high-performance products.

Cummins Engine Part 4934280: Sealing Washer Application

The Cummins part number 4934280, a sealing washer, is a critical component used across a variety of Cummins engines. This part is designed to ensure a tight seal in various applications, preventing leaks and maintaining the integrity of the engine’s systems.

B Series Engines

The sealing washer is compatible with several B series engines, including:

• B4.5 CM2350 B129B
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• F3.8 CM2350 F120B
• F3.8 CM2620 F137B

These engines are known for their robust design and are often used in heavy-duty applications, such as construction and agricultural machinery.

ISB Series Engines

The ISB series engines also utilize the sealing washer, including:

• ISB CM2150
• ISB CM850
• ISB4.5 CM2350 B104
• ISB6.7 CM2250
• ISF3.8 CM2350 F109
• ISL CM2150
• ISL G CM2180
• ISL9 CM2150 SN
• ISL9 CM2250

These engines are designed for a wide range of applications, from commercial vehicles to industrial equipment, and are known for their reliability and efficiency.

ISC Series Engines

The ISC series engines that use the sealing washer include:

• ISC CM2150
• ISC8.3 CM2250

These engines are typically used in medium-duty applications, such as trucks and buses.

ISM and ISBE Series Engines

The ISM and ISBE series engines that use the sealing washer are:

• ISM CM876
• ISBE4 CM850

These engines are often found in heavy-duty on-highway and off-highway applications.

ISX Series Engines

The ISX series engine that uses the sealing washer is:

• ISX CM871

This engine is known for its high performance and is commonly used in long-haul trucking and other demanding applications.

QSB, QSC, QSL, and QSF Series Engines

The sealing washer is also used in several Q series engines, including:

• QSB6.7 CM2350 B105
• QSC9 CM2250/QSL9 CM2250
• QSF3.8 CM2350 F107
• QSL9 CM2250

These engines are designed for a variety of applications, from agricultural to industrial use.

L GAS PLUS Engine

The L GAS PLUS CM556 engine also utilizes the sealing washer.

This part is essential in maintaining the seal integrity across these diverse engine models, ensuring optimal performance and longevity.

Role of Part 4934280 Sealing Washer in Engine Systems

The 4934280 Sealing Washer is an essential component in various engine systems, ensuring the integrity and efficiency of these systems through effective sealing. Its application spans across multiple components, contributing to the overall performance and reliability of the engine.

Exhaust Recirculation System

In the Exhaust Recirculation (EGR) system, the 4934280 Sealing Washer is utilized to maintain a secure seal between the EGR valve and the engine block. This ensures that exhaust gases are properly recirculated back into the intake manifold, reducing nitrogen oxides (NOx) emissions and improving combustion efficiency.

Turbocharger Systems

Within turbocharger systems, the Sealing Washer is employed in the turbocharger gasket kit and turbocharger plumbing. It ensures that there are no leaks in the turbocharger coolant passages and the oil supply lines, which is vital for maintaining optimal turbocharger performance and longevity.

Fuel and Radiator Plumbing

In fuel and radiator plumbing arrangements, the 4934280 Sealing Washer plays a significant role in preventing leaks. It is positioned at connection points to ensure a tight seal, which is essential for maintaining fuel pressure and coolant flow without any loss, thereby ensuring efficient engine operation.

Overhaul and Oil Cooler Kits

During engine overhauls, the Sealing Washer is a component of the overhaul kit, used to replace worn-out seals in various engine components. In oil cooler kits, it is used to seal connections in the oil cooler lines, ensuring that the oil cooling system operates efficiently without leaks, which is crucial for maintaining engine oil temperature within optimal ranges.

Upper Engine Gasket Sets

In upper engine gasket sets, the Sealing Washer is used alongside other gaskets to ensure a comprehensive seal across the engine’s upper components. This includes sealing around the intake manifold, exhaust manifold, and other critical upper engine components, contributing to the engine’s overall sealing integrity.

Air Fuel Control and Turbocharger Coolant Plumbing

For air fuel control systems and turbocharger coolant plumbing, the Sealing Washer ensures that there are no leaks in the connections, which is essential for precise air-fuel mixture control and efficient cooling of the turbocharger, respectively.

Conclusion

In summary, the 4934280 Sealing Washer is a versatile component that enhances the sealing efficiency across a wide range of engine systems, contributing to the engine’s performance, reliability, and emissions control.