5263997
Oil Filler Tube
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$319.95 $380.74

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 5263997 Oil Filler Tube is a component designed for use in heavy-duty trucks. It serves a specific function within the engine’s lubrication system, contributing to the maintenance and efficient operation of the vehicle. Understanding its purpose and significance is key to ensuring the longevity and performance of the truck’s engine.

Basic Concepts of Oil Filler Tubes

An oil filler tube is a part of the engine system that allows for the addition of oil to the engine. Its function is to provide a pathway for oil to enter the engine, ensuring that the lubrication system remains adequately filled. This contributes to the overall performance and longevity of the engine by maintaining proper lubrication, which is vital for the moving parts within the engine to operate smoothly and efficiently 1.

Purpose and Role of the 5263997 Oil Filler Tube

This Cummins part plays a role in the operation of a truck by facilitating the addition of oil to the engine’s lubrication system. It ensures that the engine maintains the correct oil levels, which is important for the lubrication of engine components, reduction of friction, and prevention of wear and tear. Proper oil levels are also important for the engine’s cooling system, as oil helps in dissipating heat generated during operation 2.

Key Features

The 5263997 is constructed with durability in mind, utilizing materials that can withstand the harsh conditions present in heavy-duty truck engines. Its design includes precise fittings to ensure a secure connection to the engine, minimizing the risk of leaks. Additionally, it may feature unique attributes such as enhanced sealing mechanisms or corrosion-resistant coatings, which contribute to its performance and reliability 3.

Benefits of Using the 5263997 Oil Filler Tube

Using this Cummins part offers several advantages. It contributes to improved engine performance by ensuring consistent oil levels and effective lubrication. The design of the tube facilitates ease of use during oil changes, reducing the time and effort required for maintenance. Its reliability in various operating conditions makes it a valuable component for heavy-duty trucks, which often operate in demanding environments.

Installation Process

Installing the 5263997 involves several steps to ensure a secure fit. The process begins with the removal of the old tube, if applicable, followed by the alignment and insertion of the new tube into the designated fitting on the engine. Tools such as wrenches may be required to tighten connections securely. It is important to follow best practices, such as applying thread sealant where specified, to prevent leaks and ensure the tube is properly seated.

Maintenance Tips

To ensure the longevity and optimal performance of the 5263997, regular maintenance practices are recommended. This includes checking for signs of wear or damage, ensuring connections are tight, and verifying that the tube is free from obstructions. Periodically inspecting the tube as part of routine engine maintenance can help identify potential issues before they become problematic.

Troubleshooting Common Issues

Common problems associated with oil filler tubes can include leaks, difficulty in adding oil, or obstructions within the tube. Addressing these issues may involve tightening connections, cleaning the tube, or replacing damaged components. Practical solutions often involve straightforward adjustments or replacements, which can be performed as part of regular maintenance or when issues arise.

About Cummins

Cummins Inc. is a corporation known for its diesel engines, related technologies, and power generation equipment. With a history spanning several decades, Cummins has established a reputation for quality and innovation in the automotive and heavy-duty truck industry. The company’s product range includes engines, filtration systems, and other components designed to meet the demanding requirements of commercial vehicles and industrial applications.

Oil Filler Tube Compatibility with Cummins Engines

The Oil Filler Tube part number 5263997, manufactured by Cummins, is designed to fit seamlessly with several of their engine models. This part is crucial for maintaining the proper oil levels in the engine, ensuring optimal performance and longevity.

QSB6.7 Series

The Oil Filler Tube part 5263997 is compatible with the following QSB6.7 engines:

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

These engines are known for their robust design and reliability, making them suitable for a variety of applications, from agricultural to industrial use. The Oil Filler Tube ensures that the oil can be easily and accurately topped up, which is essential for maintaining the engine’s health.

QSB7 Series

The Oil Filler Tube part 5263997 also fits the QSB7 CM2880 B117 engine. This engine is part of the QSB7 series, which is designed to provide high power output and efficiency. The Oil Filler Tube in this engine model ensures that the oil level is consistently monitored and maintained, contributing to the engine’s overall performance and durability.

By ensuring that the Oil Filler Tube part 5263997 is correctly installed, users can maintain the integrity of these engines, ensuring they operate smoothly and efficiently.

Understanding the Role of Part 5263997 Oil Filler Tube in Engine Systems

The part 5263997 Oil Filler Tube is an essential component in the arrangement of various engine systems, facilitating the oil fill process with precision and efficiency. This tube is strategically positioned to connect the oil fill port to the engine’s lubrication system, ensuring a seamless flow of oil into the crankcase.

In the context of the oil fill arrangement, the Oil Filler Tube acts as a conduit, allowing fresh oil to be introduced into the engine during maintenance procedures. Its design and placement are optimized to prevent spills and ensure that oil is directed accurately into the engine’s sump, where it is stored before being circulated through the lubrication system.

The integration of the Oil Filler Tube with the oil filler system is designed to enhance the overall efficiency of oil changes and top-ups. By providing a direct and unobstructed path for oil to enter the engine, this component helps maintain the proper oil level, which is vital for the engine’s performance and longevity.

Furthermore, the Oil Filler Tube is engineered to work in harmony with other components within the oil filler system, such as the oil cap and the breather system. This collaboration ensures that the engine receives a consistent supply of oil, which is essential for reducing friction, cooling moving parts, and carrying away contaminants.

Conclusion

In summary, the part 5263997 Oil Filler Tube plays a significant role in the oil fill arrangement by ensuring that oil is efficiently and accurately delivered to the engine’s lubrication system, contributing to the overall health and performance of the engine.


  1. Robert Bosch GmbH. (2014). Bosch Automotive Handbook 9th Edition. Robert Bosch GmbH.

  2. John F Kershaw. (2023). SAE International’s Dictionary for Automotive Engineers. SAE International.

  3. Sean Bennett, Ian Andrew Norman. (2011). Heavy Duty Truck Systems, Fifth Edition. Delmar Cengage Learning.

SPECIFICATIONS

Package Dimensions
27.38 x 7.0 x 6.75 in
Weight
2.296 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.