3975550
Dipstick
Cummins®

The Cummins 3975550 Dipstick is a specialized tool designed for use in heavy-duty trucks equipped with Cummins engines. Its primary function is to facilitate the measurement of engine oil levels, which is a fundamental aspect of routine maintenance. Ensuring the correct oil level is vital for the lubrication of engine components, which in turn contributes to the overall efficiency and longevity of the engine ¹.

Basic Concepts of a Dipstick

A dipstick is a simple yet essential component in the maintenance of an engine. It is a thin, graduated rod that is inserted into the engine’s oil sump. The dipstick allows mechanics and operators to check the oil level without dismantling the engine. When removed, the oil level can be read from the markings on the dipstick, providing a quick and effective way to ensure that the engine has sufficient lubrication ².

Purpose of the Cummins 3975550 Dipstick

This Cummins part plays a role in the operation of a truck by enabling the measurement of oil levels within the engine. Proper lubrication is necessary for the smooth operation of engine components, reducing friction and wear. By providing an accurate reading of the oil level, the dipstick helps ensure that the engine maintains optimal performance and durability ³.

Key Features

The 3975550 is engineered with specific features to enhance its performance and durability. It is constructed from high-quality materials that resist corrosion and wear, ensuring longevity even in the demanding conditions of heavy-duty truck engines. The dipstick is designed with clear, easy-to-read markings for accurate oil level measurement. Additionally, its robust construction allows it to withstand the high temperatures and pressures within the engine compartment ⁴.

Benefits

Using this part offers several advantages. Its precise markings allow for accurate measurement of oil levels, which is important for maintaining proper engine lubrication. The ease of use and clear markings make it a practical tool for both professional mechanics and truck operators. Furthermore, by ensuring accurate oil levels, the dipstick contributes to the longevity and efficiency of the engine ¹.

Troubleshooting and Maintenance

Common issues with dipsticks may include inaccurate readings due to wear or contamination. To troubleshoot these problems, it is important to regularly inspect the dipstick for signs of damage or buildup. Cleaning the dipstick with a suitable solvent and ensuring it is fully seated when in use can help maintain its accuracy. Regular replacement of the dipstick, as part of routine maintenance, can also prevent issues related to wear and tear ².

Installation and Usage

To install the 3975550, 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. The markings on the dipstick will indicate whether the oil level is within the acceptable range. It is important to check the oil level when the engine is cold for the most accurate reading. After checking, reinsert the dipstick fully to ensure a proper seal ³.

Safety Considerations

When working with dipsticks, it is important to follow safety guidelines to avoid injury. Always allow the engine to cool before checking the oil level to prevent burns from hot oil. Use caution when handling the dipstick to avoid contact with hot engine components. Additionally, ensure that the area around the dipstick is clean and free from debris to prevent contamination of the oil ⁴.

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 is committed to quality, innovation, and customer satisfaction. The company offers a wide range of products designed for various applications, including heavy-duty trucks, where reliability and performance are paramount. Cummins’ dedication to excellence is evident in their comprehensive product line and ongoing investment in research and development.

Cummins Dipstick Part 3975550 Compatibility

The Cummins dipstick part number 3975550 is designed to be compatible with a range of Cummins engines, ensuring accurate oil level readings and facilitating proper maintenance. This dipstick is engineered to fit seamlessly with several models within the Cummins lineup, providing a reliable tool for engine care.

Compatible Engines

• ISBE CM800
• QSB5.9 CM550
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

The dipstick part 3975550 is specifically tailored to work with these engines, ensuring that users can easily check and maintain their oil levels. This compatibility extends across various engine configurations, making it a versatile tool for technicians and engine owners alike.

Grouping of Compatible Engines

The dipstick part 3975550 is designed to fit the following groups of engines:

• QSB6.7 Series:

  • QSB6.7 CM2250
  • QSB6.7 CM2350 B105
  • QSB6.7 CM850 (CM2850)

• QSB7 Series:

  • QSB7 CM2880 B117

• Other Models:

  • ISBE CM800
  • QSB5.9 CM550

This grouping helps in understanding the broad applicability of the dipstick across different engine families, ensuring that users can confidently use this part for their maintenance needs.

Role of Part 3975550 Dipstick in Engine Systems

The part 3975550 dipstick is an essential component in the oil level gauge system of an engine. It serves as the primary tool for measuring the oil level within the engine’s crankcase.

When the dipstick is inserted into the engine, it provides a direct measurement of the oil level. This information is vital for maintaining the engine’s lubrication system, ensuring that all moving parts are adequately coated with oil to reduce friction and wear.

The dipstick interacts with the oil pan, where the engine oil is stored, and the oil level sensor, which may be part of the oil level gauge system. Accurate oil level readings from the dipstick help in determining if the oil needs to be topped up or changed, thereby contributing to the overall maintenance and longevity of the engine.

In summary, the part 3975550 dipstick is integral to the oil level gauge system, facilitating essential maintenance checks and ensuring the engine operates within optimal lubrication conditions.

Conclusion

The Cummins 3975550 Dipstick is a vital component for maintaining the health and efficiency of Cummins engines. Its design, featuring high-quality materials and clear markings, ensures accurate and reliable oil level readings. Regular maintenance and proper usage of this part contribute significantly to the longevity and performance of heavy-duty truck engines. By understanding its role and importance, operators and mechanics can better ensure the optimal operation of their vehicles.