3035597
Lubricating Oil Bypass Tube
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$184.95 $220.09

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 Lubricating Oil Bypass Tube (3035597) by Cummins is a component designed to facilitate the efficient operation of heavy-duty truck engines. Its purpose is to ensure consistent oil flow and pressure within the engine’s lubrication system, which is vital for maintaining engine performance and longevity. This part is integral to the overall health and efficiency of the engine, playing a significant role in the lubrication process 1.

Function and Operation

The Lubricating Oil Bypass Tube operates within the engine’s lubrication system by providing an alternative pathway for oil to flow when the primary oil filter becomes restricted or clogged. This ensures that the engine continues to receive adequate lubrication, even under conditions where the filter may be less effective. The tube helps maintain oil pressure and flow, which is crucial for the proper functioning of engine components 2.

Key Features

The design and construction of the Lubricating Oil Bypass Tube include several features that enhance its performance. It is typically made from durable materials that can withstand the high temperatures and pressures within the engine. The tube is engineered to precise dimensions to ensure a proper fit within the engine’s lubrication system. Additionally, it may include unique attributes such as reinforced sections to handle the stress of oil flow and pressure differentials 3.

Benefits

The Lubricating Oil Bypass Tube offers several advantages. It contributes to improved engine lubrication by ensuring a consistent oil supply, even when the primary filter is compromised. This can lead to enhanced engine durability, as critical components remain well-lubricated under various operating conditions. Furthermore, by preventing engine damage due to inadequate lubrication, it can result in potential cost savings for fleet operators through reduced maintenance and repair expenses.

Installation and Maintenance

Proper installation of the Lubricating Oil Bypass Tube is crucial for its effective operation. It should be installed according to the manufacturer’s guidelines to ensure a secure fit and proper function within the engine’s lubrication system. Regular maintenance, including inspection for signs of wear or damage, is recommended to ensure optimal performance and longevity. Following the manufacturer’s maintenance schedule can help prevent issues and ensure the tube continues to function as intended.

Troubleshooting

Common issues associated with the Lubricating Oil Bypass Tube may include blockages or leaks. Diagnostic procedures for identifying problems can involve checking for consistent oil pressure and flow, as well as inspecting the tube for physical damage. Recommended solutions for addressing malfunctions may include cleaning or replacing the tube, depending on the severity of the issue. Regular monitoring and maintenance can help identify and resolve problems before they lead to more significant engine issues.

Manufacturer Overview

Cummins Inc. is a well-established company with a strong reputation in the automotive and commercial vehicle industry. Founded in 1919, Cummins has a long history of innovation and quality in engine manufacturing. The company offers a wide range of products, including engines, filtration systems, and aftermarket parts, designed to meet the demanding requirements of heavy-duty applications. Cummins is known for its commitment to quality, performance, and customer satisfaction, making it a trusted name in the industry.

Cummins Lubricating Oil Bypass Tube (Part 3035597) in NH/NT 855 Engines

The Cummins Lubricating Oil Bypass Tube, identified by part number 3035597, is a critical component in the NH/NT 855 engine series. This part is integral to the engine’s lubrication system, ensuring that oil is effectively circulated and maintained at optimal levels.

In the NH/NT 855 engines, the bypass tube functions by redirecting excess oil back to the oil sump, preventing pressure build-up that could otherwise lead to engine damage. This is particularly important in high-performance engines where oil pressure can fluctuate significantly.

The bypass tube is designed to withstand the rigorous conditions within the engine, including high temperatures and pressures. Its placement and design are meticulously engineered to ensure it integrates seamlessly with other parts of the engine’s lubrication system.

For the NH/NT 855 engines, the bypass tube is a part that is consistently used across the engine group. This standardization ensures that maintenance and repair processes are straightforward and reliable, contributing to the overall durability and efficiency of the engine.

The bypass tube’s role in maintaining oil pressure and flow is crucial for the longevity and performance of the NH/NT 855 engines. Its design and placement are critical factors in the engine’s ability to operate smoothly and efficiently.

Role of Part 3035597 Lubricating Oil Bypass Tube in Engine Systems

The lubricating oil bypass tube, part number 3035597, is an essential component in ensuring the efficient operation of several engine systems. Its primary function is to manage the flow of lubricating oil, providing a bypass route that enhances the overall performance and reliability of the engine.

Integration with Lubricating Oil Cooler Kit

When integrated with a lubricating oil cooler kit, the bypass tube plays a significant role in maintaining optimal oil temperature. The cooler kit is designed to reduce the temperature of the lubricating oil, which can become excessively hot during engine operation. The bypass tube ensures that a portion of the oil circumvents the cooler, balancing the flow and preventing over-cooling. This balance is vital for maintaining the oil’s viscosity and lubricating properties, which are essential for protecting engine components from wear and damage.

Turbocharger Mounting and Plumbing

In systems involving turbocharger mounting and turbocharger plumbing, the lubricating oil bypass tube is equally important. Turbochargers require a consistent supply of lubricating oil to function correctly, as they operate at high speeds and temperatures. The bypass tube helps manage the oil flow to the turbocharger, ensuring that it receives the necessary lubrication without being subjected to excessive pressure. This is particularly important in high-performance engines where the turbocharger operates under extreme conditions.

The bypass tube also assists in maintaining system pressure by allowing oil to bypass certain components when necessary. This is especially relevant in turbocharged engines, where maintaining consistent oil pressure is essential for the turbocharger’s bearing and seals. By providing an alternative path for oil flow, the bypass tube helps prevent pressure build-up that could lead to leaks or component failure.

Conclusion

In summary, the Lubricating Oil Bypass Tube (3035597) is a key component in managing oil flow within complex engine systems, ensuring that critical components such as oil coolers and turbochargers receive the appropriate lubrication and operate within safe parameters. Its role in maintaining oil pressure and flow is crucial for the longevity and performance of heavy-duty truck engines, particularly in the Cummins NH/NT 855 engine series.


  1. Garrett, T.K., Newton, K., & Steeds, W. (2001). The Motor Vehicle. Reed Educational and Professional Publishing Ltd.

  2. Majewski, A., & Jaskelainen, H. (2023). Diesel Emissions and Their Control: Second Edition. SAE International.

  3. Hilgers, M. (2022). Transmissions and Drivetrain Design. Springer Vieweg.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
4.0 x 4.0 x 0.5 in
Weight
0.2 lb
* 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.