3911696
Oil Filler Tube
Cummins®

Introduction

The Cummins 3911696 Oil Filler Tube is a component designed for use in heavy-duty trucks. It plays a role in the operation of these vehicles by facilitating the process of adding oil to the engine. Proper lubrication is vital for the efficient and reliable operation of heavy-duty truck engines, and the oil filler tube is a key part of this system ¹.

Basic Concepts of Oil Filler Tubes

An oil filler tube is a conduit through which oil is added to the engine’s lubrication system. Its function is to provide a pathway for oil to reach the sump or oil reservoir, where it is stored before being circulated through the engine. This component contributes to the overall performance and longevity of the engine by ensuring that the lubrication system maintains adequate oil levels, which is important for reducing friction, wear, and heat within the engine ².

Purpose of the Cummins 3911696 Oil Filler Tube

The Cummins 3911696 Oil Filler Tube is specifically engineered to play a role in the lubrication system of heavy-duty trucks. It allows for the addition of oil to the engine, ensuring that the lubrication system can maintain proper oil levels. This is important for the engine’s operation, as it helps to ensure that all moving parts are adequately lubricated, which in turn supports the engine’s performance and durability ³.

Key Features

The Cummins 3911696 Oil Filler Tube is constructed from materials that are designed to withstand the rigors of heavy-duty truck operation. Its design includes elements that enhance its performance and durability, such as a secure fitting mechanism to prevent leaks and a robust construction to resist wear and corrosion. These features contribute to the overall reliability of the component.

Benefits

Using the Cummins 3911696 Oil Filler Tube offers several benefits. It supports improved engine performance by ensuring that the lubrication system operates efficiently. The tube’s durable construction enhances the longevity of the component, reducing the need for frequent replacements. Additionally, its design facilitates ease of maintenance, allowing for straightforward oil changes and checks.

Installation Process

Installing the Cummins 3911696 Oil Filler Tube requires following a series of steps to ensure a proper fit. The process involves preparing the engine compartment, aligning the tube with the fitting, and securing it in place. Tools such as wrenches may be required, and it is important to follow best practices to ensure a secure and leak-free installation.

Troubleshooting and Maintenance

Common issues with the Cummins 3911696 Oil Filler Tube may include leaks or blockages. Troubleshooting these problems involves checking for proper alignment and secure fittings, as well as ensuring that there are no obstructions within the tube. Regular maintenance, such as inspecting the tube for signs of wear or damage, can help prolong its life and ensure the lubrication system operates effectively.

Cummins Overview

Cummins Inc. is a well-established company in the automotive industry, particularly known for its diesel engines and components. With a history of innovation and quality, Cummins has built a reputation for producing reliable and high-performance parts for a variety of applications, including heavy-duty trucks. The company’s commitment to excellence is reflected in its product line, which includes the Cummins 3911696 Oil Filler Tube.

Compatibility

The Cummins Oil Filler Tube part number 3911696 is designed to fit a variety of Cummins engines. This part is integral to the engine’s oil system, ensuring proper oil level management and preventing oil contamination.

Compatible Engines

• QSB Series

  • QSB3.9 30 CM550
  • QSB4.5 CM2250 EC
  • QSB4.5 CM850 (CM2850)
  • QSB5.9 30 CM550
  • QSB5.9 44 CM550
  • QSB5.9 CM550
  • QSB6.7 CM2250
  • QSB6.7 CM2350 B105
  • QSB6.7 CM850 (CM2850)
  • QSB7 CM2880 B117

• B Series

  • B4.5
  • B6.7

• ISB Series

  • ISB CM550
  • ISB CM850

• 4B and 6B Series

  • 4B3.9
  • 6B5.9

• CM2670 and B164C

  • CM2670
  • B164C

This part is engineered to provide a seamless fit and function across these engine models, ensuring that the oil filler tube meets the specific design requirements of each engine variant.

Role of Part 3911696 Oil Filler Tube in Engine Systems

The Part 3911696 Oil Filler Tube is a component in the lubrication system of an engine, facilitating the proper functioning and longevity of various engine parts.

Integration with the Oil Fill Arrangement

The Oil Filler Tube is designed to work seamlessly with the oil fill arrangement. This arrangement typically includes the oil cap, which is screwed onto the Oil Filler Tube. The tube guides fresh oil into the engine during the refilling process, ensuring that the oil reaches the designated areas within the engine without spillage or contamination.

Connection to the Engine Cover

Once the oil is introduced through the Oil Filler Tube, it passes through the engine cover. The cover acts as a protective shell for the internal components and also houses the Oil Filler Tube. The tube’s precise fitting within the cover ensures a sealed environment, preventing oil leaks and maintaining the integrity of the lubrication system.

Interaction with the Cylinder Block

The oil, after passing through the cover, eventually reaches the cylinder block. The cylinder block contains the cylinders, pistons, and other moving parts that require consistent lubrication to operate efficiently. The Oil Filler Tube indirectly contributes to the lubrication of these components by ensuring a steady and clean oil supply.

Conclusion

In summary, the Part 3911696 Oil Filler Tube plays a role in the effective operation of the engine’s lubrication system. Its proper installation and maintenance are key to ensuring the engine components receive the necessary lubrication for optimal performance and durability.