4938278
Dipstick
Cummins®

The Cummins 4938278 Dipstick is a component designed for use in heavy-duty trucks, specifically for monitoring engine oil levels. Its role in the maintenance and operation of these vehicles is significant, as it allows for accurate and convenient checks of oil levels, which are vital for the engine’s performance and longevity ¹.

Basic Concepts of a Dipstick

A dipstick is a tool used in engines to measure the level of fluid, typically oil. It consists of a long, thin metal or plastic rod with a handle at one end. When inserted into the engine’s oil sump and then withdrawn, the oil level can be read from markings on the dipstick. This process helps in ensuring that the engine has the correct amount of oil for lubrication and cooling ².

Purpose of the Cummins 4938278 Dipstick

This Cummins part is specifically engineered for use in Cummins engines found in heavy-duty trucks. It plays a role in the operation and maintenance of these vehicles by providing a means to check the oil level. Proper oil levels are necessary for the engine’s lubrication system to function effectively, reducing wear and tear on engine components ³.

Key Features

The Cummins 4938278 Dipstick is characterized by its robust design and the materials used in its construction. It is made from high-quality steel, ensuring durability and resistance to the high temperatures and pressures within an engine. The dipstick features clear, easy-to-read markings for accurate oil level measurement and a secure fitting to prevent oil leaks.

Benefits

Using this Cummins part offers several advantages. Its design ensures accurate measurement of oil levels, which is crucial for maintaining engine health. The durability of the dipstick means it can withstand the demanding conditions of heavy-duty truck engines. Additionally, its ease of use makes routine oil checks straightforward and efficient ⁴.

Installation Process

Installing the Cummins 4938278 Dipstick requires following a few steps to ensure it is correctly positioned and functions as intended. First, ensure the engine is off and has cooled down. Then, locate the dipstick tube in the engine compartment. Insert the dipstick fully into the tube until it reaches the bottom, then withdraw it to check the oil level. For installation, simply insert the new dipstick into the tube until it is fully seated.

Maintenance Tips

To ensure the longevity and accurate performance of the Cummins 4938278 Dipstick, regular maintenance is recommended. This includes cleaning the dipstick after each use to remove any oil residue and inspecting it for signs of wear or damage. If the dipstick becomes bent or shows signs of significant wear, it should be replaced to maintain accurate oil level readings.

Troubleshooting Common Issues

Common issues with the Cummins 4938278 Dipstick may include inaccurate readings or difficulty in insertion. Inaccurate readings can often be resolved by ensuring the dipstick is fully inserted and withdrawn correctly. If insertion becomes difficult, check for obstructions in the dipstick tube or consider if the dipstick itself may be bent and needs replacement.

Role in Preventive Maintenance

Regular use of the Cummins 4938278 Dipstick is a key component of a preventive maintenance strategy for heavy-duty trucks. By ensuring oil levels are consistently monitored and maintained, engine wear is minimized, and the risk of engine failure due to insufficient lubrication is reduced. This proactive approach to maintenance can lead to increased engine lifespan and reliability.

Cummins Engine Dipstick Compatibility

The Cummins part number 4938278, a Dipstick, is designed to be compatible with several models within the Cummins engine lineup. This dipstick is integral for checking the oil level in the engine, ensuring that the engine operates smoothly and efficiently.

ISB CM2150 and ISB6.7 CM2250

The Dipstick 4938278 fits seamlessly with the ISB CM2150 and ISB6.7 CM2250 engines. These engines are known for their robust performance and reliability, often used in heavy-duty applications. The dipstick’s design ensures easy access and accurate readings, facilitating routine maintenance checks.

ISB6.7 CM2350 B101

Similarly, the ISB6.7 CM2350 B101 engine also accommodates the Dipstick 4938278. This engine variant is part of the Cummins lineup that emphasizes durability and efficiency, making it suitable for various demanding environments. The dipstick’s compatibility with this engine ensures that users can maintain optimal oil levels, contributing to the engine’s longevity and performance.

By using the Dipstick 4938278, owners and operators of these engines can confidently monitor their oil levels, ensuring that their engines remain in top condition.

Role of Part 4938278 Dipstick in Engine Systems

The part 4938278 Dipstick is a component in the maintenance and operation of engine systems, specifically in relation to the gauge and oil level.

When inserted into the engine, the dipstick provides a direct measurement of the oil level within the crankcase. This measurement is then visually assessed or, in more advanced systems, electronically read by an oil level gauge. The gauge interprets the data from the dipstick to display the current oil level to the operator, ensuring that the engine is neither overfilled nor underfilled with oil.

Maintaining the correct oil level is important for the lubrication of moving parts, cooling, and cleaning within the engine. The dipstick, therefore, plays a role in facilitating this process by offering a simple yet effective means of checking the oil level. It ensures that the engine operates within safe parameters, contributing to the overall efficiency and longevity of the engine system.

Conclusion

The Cummins 4938278 Dipstick is an essential tool for maintaining the health and efficiency of heavy-duty truck engines. Its robust design, ease of use, and compatibility with various Cummins engine models make it a valuable component in engine maintenance. Regular use and proper maintenance of this dipstick contribute to the longevity and reliability of the engine, underscoring its importance in preventive maintenance strategies.