3942247
Round Head Cap Screw
Cummins®

Introduction

The Cummins 3942247 Oil Level Dipstick is a component designed for use in heavy-duty trucks equipped with Cummins engines. Its purpose is to facilitate the monitoring of engine oil levels, which is a fundamental aspect of engine maintenance. Proper oil levels are vital for the lubrication, cooling, and overall performance of the engine, making the dipstick an important tool for truck operators and maintenance personnel ¹.

Basic Concepts of Oil Level Dipstick

An oil level dipstick is a simple yet essential tool used in internal combustion engines to check the level of engine oil. It consists of a long, thin metal or plastic rod with a handle at one end. The other end is inserted into the engine’s oil sump. The dipstick has markings that indicate the minimum and maximum acceptable oil levels. When pulled out, the oil level can be read against these markings. This process allows for the assessment of whether the oil level is within the required range, ensuring the engine operates efficiently and without damage ².

Purpose of the Cummins 3942247 Oil Level Dipstick

The Cummins 3942247 Oil Level Dipstick plays a role in the operation and maintenance of a truck’s engine by providing a means to monitor oil levels. Accurate oil level readings are important for maintaining the engine’s lubrication system, which reduces friction between moving parts, aids in cooling, and helps in removing contaminants from the engine. Regular checks with the dipstick allow for timely top-ups or changes, which are important for engine longevity and performance ¹.

Key Features

The Cummins 3942247 Oil Level Dipstick is characterized by its specific design and material properties that enhance its functionality and durability. It is made from high-quality materials to withstand the high temperatures and pressures within the engine compartment. The dipstick is designed to fit precisely into the oil sump of compatible Cummins engines, ensuring accurate readings. Its robust construction allows it to endure the rigors of heavy-duty truck operation ³.

Benefits

Using the Cummins 3942247 Oil Level Dipstick offers several advantages. It provides accurate oil level readings, which are important for maintaining engine health. The dipstick is easy to use, requiring no special tools for operation, which makes it convenient for regular checks. Its compatibility with Cummins engines ensures that it meets the specific requirements of these powerful and demanding engines ¹.

Installation Process

To install the Cummins 3942247 Oil Level Dipstick, first, ensure the engine is cool to avoid burns. Locate the dipstick tube, usually found on the side of the engine block. If the old dipstick is being replaced, remove it by pulling it straight out of the tube. Insert the new dipstick fully into the tube until it stops, ensuring it is seated correctly. There are no tools required for this process, making it straightforward for users to perform ³.

Regular Maintenance

To ensure the Cummins 3942247 Oil Level Dipstick remains in optimal condition, it is important to perform routine checks and maintenance. This includes regularly cleaning the dipstick with a lint-free cloth after each use to remove oil residue, which can affect the accuracy of readings. Inspect the dipstick for any signs of damage or wear, and replace it if necessary to maintain accurate oil level readings ².

Troubleshooting Common Issues

Common issues with oil level dipsticks include inaccurate readings or physical damage. Inaccurate readings can often be resolved by ensuring the dipstick is fully seated in the tube and by cleaning it before each use. Physical damage, such as bends or cracks, may require replacement of the dipstick to ensure reliable operation ³.

Safety Considerations

When using and maintaining the oil level dipstick, it is important to follow safety practices to prevent injuries or equipment damage. Always ensure the engine is cool before checking the oil level to avoid burns. Use caution when handling the dipstick to prevent injury from sharp edges or hot surfaces. Regular maintenance and proper use of the dipstick contribute to safe and efficient engine operation ².

Cummins Overview

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 itself as a key player in the automotive industry, particularly in the production of diesel engines and related components. The company’s commitment to innovation, quality, and customer satisfaction has made it a preferred choice for heavy-duty applications, including trucks and industrial equipment ¹.

Cummins Oil Level Dipstick 3942247 Compatibility

The Cummins Oil Level Dipstick part number 3942247 is designed to fit a variety of Cummins engines, ensuring accurate and convenient oil level checks. This dipstick is compatible with the following engines:

ISB Series

• ISB CM550
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN

ISBE Series

• ISBE CM2150
• ISBE4 CM850

ISF Series

• ISF3.8 CM2220 AN

QSB Series

• QSB4.5 CM850 (CM2850)
• QSB5.9 44 CM550
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

Other Models

• 6B5.9
• B6.7 CM2670 B164C

This dipstick is engineered to provide a reliable means of checking oil levels, ensuring that maintenance personnel can perform this task with ease and confidence across these diverse engine models ¹.

Understanding the Integration of Part 3942247 Oil Level Dipstick in Engine Systems

The part 3942247 Oil Level Dipstick is an essential component in the maintenance and operation of various engine systems. Its primary function is to provide a quick and accurate measurement of the oil level within the engine, ensuring that the engine operates within safe parameters ³.

Interaction with Key Engine Components

Air Intake and Manifold

The air intake and manifold work together to deliver air into the engine’s combustion chambers. Proper oil levels, monitored by the dipstick, ensure that the engine components, including those in the air intake system, are adequately lubricated. This lubrication is vital for the smooth operation and longevity of the manifold and other air delivery components ².

Fuel Pump and Mounting

The fuel pump coupling and fuel pump mounting are integral to the engine’s fuel delivery system. Consistent oil levels, as indicated by the dipstick, help maintain the viscosity and flow of oil, which is necessary for the efficient operation of the fuel pump. Adequate lubrication also reduces wear on the fuel pump mounting, ensuring stable and reliable fuel delivery ³.

Flywheel and Housing

The flywheel, housed within the engine’s housing, relies on precise oil levels to function correctly. The dipstick allows for regular checks to ensure that the oil level is sufficient to lubricate the flywheel and its housing, preventing excessive friction and potential damage ¹.

Air Heater Starting Aid

In engines equipped with an air heater starting aid, maintaining optimal oil levels is particularly important. The dipstick ensures that the oil is at the correct level to provide necessary lubrication during startup, especially in colder conditions where the air heater is used to facilitate easier engine ignition ².

Overall Engine Health

Regular use of the part 3942247 Oil Level Dipstick in checking oil levels contributes to the overall health and efficiency of the engine. It allows for early detection of oil leaks or consumption issues, enabling timely maintenance and preventing more severe engine problems ³.

Conclusion

The Cummins 3942247 Oil Level Dipstick is a vital component for maintaining the health and efficiency of Cummins engines. By providing accurate oil level readings, it ensures that the engine’s lubrication system operates effectively, reducing friction, aiding in cooling, and helping to remove contaminants. Regular use and maintenance of this Cummins part contribute to the longevity and performance of the engine, making it an indispensable tool for truck operators and maintenance personnel.