4991652
Turbo Oil Supply Tube
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$2,599.95 $3,093.94

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 4991652 Turbo Oil Supply Tube is a component manufactured by Cummins, a well-established name in the commercial truck industry. This part is integral to the operation of heavy-duty truck engines, particularly in the context of turbocharger systems. Understanding its role and functionality is key to maintaining engine efficiency and reliability.

Function and Operation

The Turbo Oil Supply Tube facilitates the delivery of oil to the turbocharger, which is a critical component for enhancing engine performance. It operates by channeling oil from the engine’s lubrication system to the turbocharger, ensuring that the latter receives the necessary lubrication for its bearings and other moving parts. This process is vital for the turbocharger’s efficient operation and longevity 1.

Purpose of the Turbo Oil Supply Tube

This Cummins part plays a significant role in the operation of a truck by ensuring that the turbocharger receives a consistent supply of oil. This lubrication is important for maintaining the turbocharger’s efficiency and extending its operational life. Proper lubrication reduces wear and tear on the turbocharger’s components, which in turn contributes to the overall performance and reliability of the engine 2.

Key Features

The 4991652 is constructed from durable materials that are resistant to the high temperatures and pressures found in engine compartments. Its design includes precise fittings and connections to ensure a secure and leak-free installation. Additionally, the tube may feature reinforced sections to withstand the dynamic forces exerted during engine operation, enhancing its durability and performance 3.

Benefits

Utilizing the Turbo Oil Supply Tube can lead to several advantages. These include improved engine performance due to efficient turbocharger operation, enhanced reliability of the turbocharger system, and potential cost savings for fleet operators through reduced maintenance and repair needs. The tube’s design and construction contribute to these benefits by ensuring a reliable oil supply to the turbocharger 4.

Installation Considerations

When installing the 4991652, it is important to follow manufacturer guidelines to ensure proper fitting and function. This may involve checking for compatibility with the specific engine model, ensuring all connections are secure, and verifying that the tube is correctly aligned with the turbocharger and engine lubrication system. Adhering to these practices helps maintain the integrity of the oil supply system.

Troubleshooting and Maintenance

Common issues with the Turbo Oil Supply Tube may include leaks or reduced performance, which can often be traced to improper installation or wear over time. Regular inspection and maintenance, such as checking for signs of wear or damage and ensuring all connections are tight, can help prolong the lifespan of the component. Addressing issues promptly can prevent more significant problems down the line.

Cummins: A Brief Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its wide range of high-quality engine components. With a history of innovation and excellence, Cummins has established a reputation for reliability and performance. The company’s commitment to quality and customer satisfaction makes it a trusted source for engine parts, including the 4991652 Turbo Oil Supply Tube.

Turbo Oil Supply Tube (Part 4991652) in Cummins Engines

The Turbo Oil Supply Tube, identified by part number 4991652, is a critical component in the lubrication system of certain Cummins engines. This part ensures that the turbocharger receives the necessary oil pressure to operate efficiently and effectively.

Application in Cummins Engines

  • QSB6.7 CM2250: This part is integral to the QSB6.7 CM2250 engine, providing the required oil flow to the turbocharger. Its design and placement are crucial for maintaining optimal engine performance and longevity.

The Turbo Oil Supply Tube is engineered to withstand the high pressures and temperatures within the engine’s lubrication system. Its precise fit and function are essential for the overall health and efficiency of the engine.

Role of Part 4991652 Turbo Oil Supply Tube in Engine Systems

The Turbo Oil Supply Tube, identified by part number 4991652, is an essential component in the lubrication system of turbocharged engines. This tube facilitates the delivery of oil from the engine’s lubrication system to the turbocharger.

Integration with Plumbing Systems

In the context of engine plumbing, the Turbo Oil Supply Tube connects to the oil supply line, which originates from the engine’s oil pump. This connection ensures a steady flow of pressurized oil to the turbocharger. The tube is typically routed through the engine bay, often secured with clamps or brackets to prevent movement and potential disconnection.

Interaction with the Turbocharger

Once the oil reaches the turbocharger via the Turbo Oil Supply Tube, it is directed into the turbocharger’s bearing system. The oil lubricates the turbocharger’s rotating components, including the turbine and compressor wheels, as well as the center housing rotating assembly (CHRA). Proper lubrication is necessary to reduce friction and wear, ensuring the turbocharger operates efficiently and has a longer service life 5.

Enhanced Performance and Reliability

The efficient delivery of oil through the Turbo Oil Supply Tube contributes to the overall performance and reliability of the turbocharged engine. By maintaining optimal lubrication, the turbocharger can withstand the high speeds and temperatures it encounters, leading to improved engine response, increased power output, and enhanced durability.

Maintenance Considerations

Regular inspection of the Turbo Oil Supply Tube is recommended to identify any signs of wear, leaks, or damage. Ensuring the tube is in good condition helps maintain the integrity of the oil supply system, preventing potential issues such as oil starvation, which could lead to turbocharger failure.

Conclusion

In summary, the Turbo Oil Supply Tube plays a significant role in the lubrication and performance of turbocharged engines by ensuring a consistent and reliable oil supply to the turbocharger. Proper installation, maintenance, and understanding of its function are crucial for maintaining engine efficiency and reliability.


  1. Alma Hillier, Fundamentals of Motor Vehicle Technology Book 1 6th Edition, Oxford University Press, 2014.

  2. Michael Hilgers, Transmissions and Drivetrain Design, Springer Vieweg, 2022.

  3. Robert Bosch GmbH, Bosch Automotive Handbook 9th Edition, Robert Bosch GmbH, 2014.

  4. Cummins Inc., Service Manual (4383693), Cummins Inc., 2023.

  5. Cummins Inc., Service Manual (4383693), Cummins Inc., 2023.

SPECIFICATIONS

Package Dimensions
10.4 x 1.0 x 1.0 in
Weight
0.3 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.