3688658
Dipstick
Cummins®

The Cummins 3688658 Dipstick is a specialized component designed for use in heavy-duty trucks. Its purpose is to facilitate the measurement of engine oil levels, which is a fundamental aspect of maintaining and operating these vehicles. Ensuring the correct oil level is vital for the engine’s lubrication, cooling, and overall performance. This part is engineered to provide accurate and reliable readings, contributing to the efficient and safe operation of heavy-duty trucks ¹.

Basic Concepts of a Dipstick

A dipstick is a simple yet essential tool used in internal combustion engines to measure the level of engine oil. It consists of a long, slender metal or plastic rod with a handle at one end. The other end is inserted into the engine’s oil sump. The dipstick has graduated markings along its length, allowing users to determine the oil level by observing where the oil reaches on the stick when it is withdrawn from the engine. The design and use of dipsticks are based on the principle that maintaining the correct oil level is essential for the engine’s lubrication system, which reduces friction between moving parts, dissipates heat, and removes contaminants ².

Purpose of the Cummins 3688658 Dipstick

The Cummins 3688658 Dipstick plays a role in the operation and maintenance of a truck’s engine by providing a means to accurately measure the oil level. This measurement is crucial for ensuring that the engine has sufficient lubrication, which is necessary for its efficient and prolonged operation. By regularly checking the oil level with this dipstick, operators can prevent oil starvation, which can lead to increased wear and potential engine damage. Additionally, the dipstick aids in identifying oil leaks or consumption issues, allowing for timely maintenance and repairs ³.

Key Features

The Cummins 3688658 Dipstick is distinguished by several specific features. It is constructed from high-quality materials that offer durability and resistance to the harsh conditions within an engine. The design includes precise markings for accurate oil level readings and a robust handle for easy insertion and removal. Additionally, the dipstick may feature a unique shape or length tailored to fit specific Cummins engines, ensuring a proper fit and function.

Benefits of Using the Cummins 3688658 Dipstick

Using the Cummins 3688658 Dipstick provides several advantages. Its accurate measurements help maintain the optimal oil level, contributing to the engine’s efficiency and longevity. The durable construction ensures it withstands the rigors of heavy-duty use, reducing the need for frequent replacements. Furthermore, the ease of use, with its straightforward design and clear markings, makes it a practical tool for regular maintenance checks.

Installation and Usage

To properly install and use the Cummins 3688658 Dipstick, follow these steps:

1. Ensure the truck is on a level surface and the engine is turned off.
2. Locate the dipstick tube, typically found on the engine’s side.
3. Remove the dipstick by pulling it straight out of the tube.
4. Wipe the dipstick clean with a lint-free cloth.
5. Reinsert the dipstick fully into the tube, then remove it again to check the oil level.
6. Observe the oil level against the markings on the dipstick.
7. If necessary, add oil to reach the recommended level, using the type of oil specified for the engine.
8. Replace the dipstick securely in the tube to prevent oil leaks.

Troubleshooting Common Issues

Common problems with the Cummins 3688658 Dipstick may include inaccurate readings or difficulty in insertion/removal. To address these issues:

• Ensure the dipstick is fully seated in the tube for accurate readings.
• Check for any obstructions in the tube that may hinder the dipstick’s movement.
• If the dipstick appears bent or damaged, consider replacing it to ensure accurate measurements and proper function.

Maintenance Tips

To ensure the longevity and reliable performance of the Cummins 3688658 Dipstick, regular maintenance is recommended:

• Clean the dipstick after each use to remove oil residue and contaminants.
• Inspect the dipstick for signs of wear or damage, such as bending or corrosion, and replace it if necessary.
• Ensure the dipstick tube is free of debris and obstructions to facilitate easy insertion and removal.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and related technologies. With a history spanning over a century, Cummins has established a reputation for quality, reliability, and innovation in the heavy-duty truck industry. The company’s product range includes engines for on-highway and off-highway applications, as well as components and systems that enhance engine performance and efficiency. Cummins’ commitment to excellence and customer satisfaction has made it a trusted name in the industry.

Cummins Engine Dipstick Part 3688658

The Cummins part number 3688658, which is a Dipstick, is specifically designed to fit into the engine systems of the QSX15 CM2250 ECF and QSX15 CM2350 X105 engines. This dipstick is an essential component for maintaining the engine’s oil levels, ensuring that the engine operates smoothly and efficiently.

For the QSX15 CM2250 ECF engine, the dipstick is engineered to provide accurate readings of the oil level, which is crucial for the engine’s longevity and performance. Similarly, the QSX15 CM2350 X105 engine also relies on this dipstick to monitor oil levels, ensuring that the engine remains within the optimal operating range.

Both engines benefit from the precision and reliability of the Cummins part 3688658, which is crafted to meet the stringent requirements of these high-performance engines. The dipstick’s design ensures that it fits seamlessly into the engine’s oil system, providing an easy and effective way to check oil levels without the need for complex procedures.

Role of Part 3688658 Dipstick in Engine Systems

The part 3688658 dipstick is an essential component in the engine system, facilitating the accurate measurement and monitoring of the oil level within the engine. This component interfaces directly with the oil gauge system, ensuring that the oil level readings provided to the operator are precise and reliable.

When the dipstick is inserted into the engine’s oil filler neck, it comes into contact with the oil, allowing for a physical measurement of the oil level. The dipstick is then removed, and the oil level is read against the marked graduations. This data is vital for the oil gauge, which relies on consistent and accurate information to display the current oil level to the operator.

Maintaining the correct oil level is important for the engine’s performance and longevity. The dipstick ensures that the oil gauge receives up-to-date information, allowing for timely oil changes and additions. This, in turn, helps in preventing engine wear, ensuring optimal lubrication, and supporting the overall efficiency of the engine system.

Conclusion

The Cummins 3688658 Dipstick is a critical component for maintaining the health and efficiency of heavy-duty truck engines. Its accurate and reliable oil level readings contribute to the engine’s lubrication, cooling, and overall performance. Regular use and maintenance of this part ensure that the engine operates within optimal conditions, preventing potential damage and extending the engine’s lifespan.