3917038
Fuel Injection Pump
Cummins®

The Cummins 3917038 Dipstick is a component designed for use in heavy-duty trucks, specifically for monitoring engine oil levels. Its role is significant in the maintenance and operation of these vehicles, ensuring that the engine operates within optimal parameters by maintaining the correct oil levels ¹.

Basic Concepts of a Dipstick

A dipstick is a simple yet vital tool used in engines to measure the level of fluid, typically oil. It operates by being inserted into the engine’s oil reservoir and then withdrawn to check the oil level against the markings on the stick. This process allows for quick and easy assessment of the oil level, which is crucial for the lubrication and cooling of engine components ².

Purpose of the Cummins 3917038 Dipstick

This Cummins part serves a specific function in the operation of heavy-duty trucks. It is used to check the oil levels within the engine, ensuring that there is sufficient lubrication for the moving parts. Proper lubrication is key to reducing friction and wear on engine components, thereby contributing to the overall efficiency and longevity of the engine ³.

Key Features

The Cummins 3917038 Dipstick is characterized by several design and material features that enhance its functionality and durability. Its length is tailored to fit the specific engine it is designed for, allowing for accurate measurement of the oil level. The dipstick is marked with clear indicators for minimum and maximum oil levels, facilitating easy reading. Constructed from high-quality materials, it is built to withstand the harsh conditions typical of heavy-duty truck operations, ensuring reliability and longevity ⁴.

Benefits

Utilizing the Cummins 3917038 Dipstick offers several advantages. It provides accurate measurements of oil levels, which is vital for maintaining engine health. Its design ensures ease of use, allowing for quick checks without the need for specialized tools. Additionally, its robust construction ensures reliability even in demanding operating environments, contributing to the overall maintenance of the vehicle ⁵.

Installation and Usage

To install and use the Cummins 3917038 Dipstick correctly, follow these steps: First, ensure the vehicle is on a level surface and the engine is off. Locate the dipstick tube, usually found near the engine’s top. Remove the dipstick, wipe it clean with a cloth, reinsert it fully, then remove it again to check the oil level against the markings. This procedure ensures accurate readings and proper maintenance of the engine’s oil level ⁶.

Troubleshooting and Maintenance

Common issues with dipsticks may include inaccurate readings or physical damage. To address these, regularly check the dipstick for signs of wear or bending, and ensure it is properly seated in its tube. Cleaning the dipstick before each use can also help maintain accuracy. If damage is detected, replacement is recommended to ensure consistent performance and accurate oil level readings ⁷.

Role in Preventive Maintenance

Incorporating the use of the Cummins 3917038 Dipstick into a preventive maintenance program is beneficial for heavy-duty trucks. Regular checks of the oil level help identify potential issues before they lead to engine damage. This proactive approach to maintenance can significantly prolong the lifespan of the vehicle and enhance its operational efficiency ⁸.

Cummins Overview

Cummins Inc. is a renowned manufacturer of diesel engines and related technologies, with a history of innovation and quality in the industry. The company’s reputation for reliability and performance is reflected in its products, including the 3917038 Dipstick. Cummins’ commitment to quality ensures that their components, like the dipstick, meet the high standards required for heavy-duty applications ⁹.

Cummins Dipstick Part 3917038 Compatibility

The Cummins dipstick part number 3917038 is designed to be compatible with a range of engine models, ensuring accurate and reliable oil level checks. This dipstick is engineered to fit seamlessly with the following Cummins engines:

• 6B5.9 Series: The 3917038 dipstick is specifically tailored to work with the 6B5.9 engine series. This engine is known for its robust performance and reliability, making it a popular choice in various applications. The dipstick’s design ensures it can easily access the oil level in the engine’s sump, providing an accurate reading for maintenance purposes.

• Other Cummins Engines: While the 6B5.9 is a notable model, the 3917038 dipstick is also compatible with other Cummins engines within the same family. This compatibility extends to engines that share similar design and operational characteristics, ensuring that the dipstick can be used across multiple models without modification.

The dipstick’s design incorporates features that enhance its functionality and ease of use. These features include a durable construction that can withstand the harsh conditions of engine environments, a clear marking system for easy oil level reading, and a secure fit that prevents accidental removal during operation. This ensures that the dipstick remains a reliable tool for engine maintenance across the specified engine models ¹⁰.

Role of Part 3917038 Dipstick in Engine Systems

This part is an essential component in various engine systems, facilitating the monitoring and maintenance of engine health. When integrated with a Bosch Injection Pump, the dipstick allows for precise measurement of the lubricant levels within the pump. This ensures that the pump operates within optimal conditions, reducing wear and enhancing efficiency.

In conjunction with the Crankshaft, the dipstick provides vital information about the oil level, which is necessary for the smooth rotation of the crankshaft. Adequate lubrication is key to preventing metal-to-metal contact, which can lead to significant engine damage over time.

When used with the Cylinder Head, the dipstick helps in assessing the oil level that reaches the upper components of the engine. This is particularly important for engines with overhead camshafts or other complex cylinder head designs, where consistent lubrication is required to maintain performance and longevity.

The dipstick also plays a role in systems that include a Turbocharger. By ensuring that the lubrication system is functioning correctly, the dipstick indirectly supports the turbocharger’s operation. Proper oil levels are essential for the turbocharger’s bearings, which must be well-lubricated to handle high rotational speeds and temperatures.

In engines equipped with an Intercooler, the dipstick ensures that the lubrication system is efficient, supporting the overall engine performance. An intercooler relies on the engine’s efficient operation to function correctly, making the dipstick’s role in maintaining oil levels significant.

Lastly, in systems with a Diesel Particulate Filter (DPF), the dipstick ensures that the engine runs smoothly, which is essential for the effective operation of the DPF. A well-lubricated engine produces fewer particulates, contributing to the DPF’s efficiency in trapping and reducing emissions.

Overall, the part 3917038 Dipstick is a fundamental component that supports the intricate balance of engine systems, ensuring each part operates within its designed parameters ¹¹.

Conclusion

The Cummins 3917038 Dipstick is a critical component for maintaining the health and efficiency of heavy-duty truck engines. Its accurate oil level measurement, ease of use, and robust construction make it an invaluable tool for both routine maintenance and preventive care. By ensuring proper lubrication, this part contributes significantly to the longevity and performance of the engine, reflecting Cummins’ commitment to quality and innovation in diesel engine technology.