4990574
Dipstick
Cummins®

The Cummins 4990574 Dipstick is a component designed for use in commercial trucks, specifically for monitoring oil levels within the engine. Its role is significant in the maintenance and operation of these vehicles, ensuring that the engine remains properly lubricated and functions efficiently ¹.

Basic Concepts of a Dipstick

A dipstick is a simple yet vital tool used in engines to measure the level of oil. It consists of a long, thin metal or plastic rod with a handle at one end. The rod is inserted into the engine’s oil sump, and when withdrawn, the oil level can be read from markings on the dipstick. This process allows for the assessment of whether the oil level is within the manufacturer’s recommended range, which is crucial for the engine’s lubrication and cooling ².

Purpose of the Cummins 4990574 Dipstick

This Cummins part serves to measure the oil level in the engine of a commercial truck. By providing an accurate reading of the oil level, it helps ensure that the engine maintains proper lubrication. Adequate lubrication is necessary for reducing friction between moving parts, which in turn helps in minimizing wear and tear, and contributes to the overall efficiency and longevity of the engine ³.

Key Features

The Cummins 4990574 Dipstick is characterized by its robust design and the use of high-quality materials, which contribute to its durability and accuracy. It is crafted to withstand the harsh conditions within a commercial truck engine. The dipstick features clear, easy-to-read markings for oil level indication, and its design allows for straightforward insertion and removal from the engine.

Benefits

Utilizing this Cummins part offers several advantages. Its design ensures improved accuracy in oil level measurement, which is vital for maintaining engine health. The durability of the dipstick means it can withstand the demanding environment of a commercial truck engine, reducing the need for frequent replacements. Additionally, its ease of use facilitates quick and efficient oil level checks, which is beneficial for routine maintenance procedures.

Installation Process

Installing the Cummins 4990574 Dipstick involves a few straightforward steps. First, ensure the engine is turned off and has had sufficient time to cool. Locate the dipstick tube in the engine compartment. Remove the old dipstick by pulling it straight out of the tube. Insert the new Cummins 4990574 Dipstick into the tube until it is fully seated. Finally, withdraw the dipstick to check the oil level, ensuring it falls within the recommended range.

Maintenance Tips

To ensure the longevity and accurate performance of the Cummins 4990574 Dipstick, regular maintenance is recommended. This includes cleaning the dipstick after each use to remove any oil residue, which can affect the accuracy of future readings. Inspect the dipstick for any signs of wear or damage, and replace it if necessary to maintain reliable oil level measurements.

Troubleshooting Common Issues

Common issues with the Cummins 4990574 Dipstick may include inaccurate readings or difficulty in insertion/removal. Inaccurate readings can often be resolved by ensuring the dipstick is fully seated in the tube and by cleaning it thoroughly before taking a measurement. If insertion or removal becomes difficult, check for obstructions in the dipstick tube and clear them if present.

Role in Preventive Maintenance

Regular use of the Cummins 4990574 Dipstick is a key component of a preventive maintenance strategy for commercial trucks. By ensuring the engine maintains the correct oil level, it helps avoid potential engine damage due to insufficient lubrication. This proactive approach to maintenance can lead to extended engine life and reduced repair costs.

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. The company’s extensive product range includes engines, powertrains, and related components, all designed to meet the demanding requirements of commercial transportation.

Cummins Engine Dipstick 4990574 Compatibility

The Cummins part number 4990574, which is a Dipstick, is designed to fit into a variety of Cummins engine models. This dipstick is an essential tool for checking the oil level in the engine, ensuring that the engine is properly lubricated and maintained.

ISB/ISD4.5 CM2150 B119 and ISD4.5 CM2220 D108

The dipstick 4990574 is compatible with the ISB/ISD4.5 CM2150 B119 and ISD4.5 CM2220 D108 engines. These engines are part of the Cummins lineup that is known for its durability and efficiency, often used in heavy-duty applications. The dipstick ensures that the oil level is within the optimal range, which is crucial for the longevity and performance of these engines.

ISBE4 CM850

The ISBE4 CM850 engine is another model that the dipstick 4990574 is designed to fit. This engine is typically used in various industrial and commercial applications, and the dipstick plays a key role in maintaining the engine’s oil levels.

QSB4.5 CM2250 EC and QSB4.5 CM850 (CM2850)

The dipstick 4990574 also fits the QSB4.5 CM2250 EC and QSB4.5 CM850 (CM2850) engines. These engines are known for their versatility and are used in a range of applications, from agricultural to marine. The dipstick ensures that the oil levels are monitored and maintained, which is vital for the proper functioning of these engines.

Role of Part 4990574 Dipstick in Engine Systems

Part 4990574, the Dipstick, is an essential component in the maintenance and monitoring of engine systems. Its primary function is to provide a means for checking the oil level within the engine. This is achieved through a simple yet effective mechanism that allows for the visual inspection of the oil quantity.

When the dipstick is inserted into the engine’s oil filler tube and then withdrawn, the oil level can be observed on the dipstick itself. This reading is then compared against the minimum and maximum marks provided on the dipstick. This process ensures that the engine has the appropriate amount of oil for optimal performance and lubrication.

In addition to indicating the oil level, the dipstick also plays a role in conjunction with the oil level gauge. The gauge, often found on the dashboard of a vehicle, provides a more precise and immediate reading of the oil level. However, the accuracy of this gauge is dependent on the proper functioning and correct installation of the dipstick.

The dipstick also serves as a diagnostic tool. The condition of the oil on the dipstick can offer insights into the engine’s health. For instance, dark or gritty oil may indicate the need for an oil change, while foamy oil could suggest issues with the engine’s ventilation system.

Conclusion

In summary, the Cummins dipstick 4990574 is a versatile and essential tool for maintaining the oil levels in a variety of Cummins engines, ensuring they operate efficiently and reliably. Its role in engine systems is integral, facilitating the checking of oil levels, supporting the functionality of the oil level gauge, and providing diagnostic information about the engine’s condition.