3688684
Dipstick
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$159.95 $190.34

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Cummins 3688684 Dipstick is a specialized component designed for use in heavy-duty truck engines. Its primary function is to facilitate the monitoring of fluid levels within the engine, ensuring that the engine operates within optimal parameters. This part is integral to the maintenance and operational efficiency of heavy-duty trucks, providing a straightforward yet effective means of assessing the condition of engine fluids.

Basic Concepts of a Dipstick

A dipstick is a thin, tapered metal or plastic rod used to measure the level of fluids within an engine. It is inserted into a specific compartment of the engine, such as the oil sump, and then withdrawn to check the fluid level against marked indicators on the dipstick. This simple tool plays a vital role in engine maintenance by allowing for quick and easy assessment of fluid levels, which is crucial for the engine’s lubrication, cooling, and overall performance 1.

Purpose of the Cummins 3688684 Dipstick

This Cummins part is specifically engineered to serve heavy-duty truck engines. It allows for the precise measurement of oil levels, ensuring that the engine maintains adequate lubrication. Proper lubrication is fundamental to reducing friction between moving parts, which in turn helps to prevent wear and tear, enhance engine efficiency, and extend the engine’s operational lifespan 2.

Key Features

The 3688684 is characterized by its robust design and high-quality materials, which contribute to its durability and accuracy. It is crafted from corrosion-resistant materials to withstand the harsh environments typical of heavy-duty truck operations. The dipstick features clearly marked indicators for minimum and maximum oil levels, facilitating easy and accurate readings. Additionally, its design ensures a secure fit within the engine, minimizing the risk of fluid leaks.

Benefits

Utilizing this part offers several advantages. Its precise measurement capabilities ensure accurate fluid level readings, which are critical for maintaining engine health. The dipstick’s durable construction enhances its longevity, reducing the need for frequent replacements. Furthermore, its ease of use simplifies the maintenance process, allowing for quick checks during routine inspections.

Installation Process

Installing the 3688684 requires careful attention to ensure proper fit and function. Begin by ensuring the engine is turned off and has cooled down to avoid burns. Locate the dipstick tube and remove the old dipstick. Insert the new Cummins 3688684 Dipstick into the tube until it reaches the bottom, then withdraw it slightly to obtain an accurate reading. Reinsert the dipstick fully into the tube and secure it in place. It is advisable to consult the vehicle’s manual for specific instructions and safety precautions.

Troubleshooting Common Issues

Common issues with dipsticks include inaccurate readings and physical damage. Inaccurate readings may result from a misaligned dipstick or contamination on the dipstick’s surface. To address this, ensure the dipstick is properly seated and clean it with a lint-free cloth before taking a reading. Physical damage, such as bends or cracks, can affect the dipstick’s functionality. In such cases, replacement of the dipstick is recommended to maintain accurate fluid level measurements 3.

Maintenance Tips

Regular maintenance of the 3688684 is essential for its longevity and accurate performance. After each use, wipe the dipstick clean with a lint-free cloth to remove any oil residue. Periodically inspect the dipstick for signs of wear or damage. If the dipstick shows signs of corrosion or physical damage, it should be replaced to ensure reliable fluid level readings. Incorporating these maintenance practices into routine engine checks will help maintain the dipstick’s effectiveness and contribute to the overall health of the engine.

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 has established itself as a trusted name in the automotive industry, particularly in the production of diesel engines and related components. The company’s commitment to innovation, quality, and customer satisfaction has made it a preferred choice for heavy-duty truck manufacturers and operators worldwide.

Cummins Engine Dipstick Compatibility

The Cummins part number 3688684, which is a Dipstick, is designed to be compatible with several engine models. This includes the QSX15 CM2250 and the QSX15 CM2250 ECF engines. These engines are part of Cummins’ lineup, known for their robust performance and reliability in various applications.

Additionally, the Dipstick is also compatible with the QSX15 CM2350 X105 engine. This engine is another variant within the QSX15 series, featuring enhancements and specifications tailored for specific operational needs.

The compatibility of the Dipstick across these engines ensures that users can maintain and monitor their engine oil levels effectively, regardless of the specific engine model they are using. This standardization simplifies maintenance procedures and ensures that the correct part is used for each engine type.

Role of Part 3688684 Dipstick in Engine Systems

The Part 3688684 Dipstick is an essential component in the maintenance and operation of engine systems, particularly in relation to the oil level gauge. This dipstick facilitates the accurate measurement of oil levels within the engine, ensuring that the oil level gauge provides precise readings.

When the dipstick is inserted into the engine’s oil filler neck, it collects a sample of the engine oil. Upon removal, the oil level can be read directly from the markings on the dipstick. This data is then transferred to the oil level gauge, which displays the current oil level to the operator.

Accurate oil level readings are important for several reasons. They allow for timely oil changes, preventing engine damage due to low oil levels. Additionally, they help in identifying potential leaks or excessive oil consumption, which could indicate underlying issues within the engine.

In summary, the Part 3688684 Dipstick plays a significant role in the engine system by ensuring the oil level gauge operates correctly, thereby contributing to the overall health and efficiency of the engine.

Conclusion

The Cummins 3688684 Dipstick is a critical component for maintaining the health and efficiency of heavy-duty truck engines. Its robust design, precise measurement capabilities, and ease of use make it an invaluable tool for engine maintenance. Regular maintenance and proper installation of this part ensure accurate fluid level readings, contributing to the longevity and performance of the engine.


  1. Dixon, J. (2014). Modern Diesel Technology: Heating, Ventilation, Air Conditioning, Refrigeration, 2nd Edition. Cengage Learning.

  2. Bennett, S. (2012). Modern Diesel Technology Light Duty Diesels. Cengage Learning.

  3. Thompson, R. (2019). Automotive Maintenance: Light Repair. Cengage Learning.

SPECIFICATIONS

Package Dimensions
14.25 x 1.875 x 1.875 in
Weight
0.21 lbs
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.