3089806
Bypass Valve Plunger
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$369.95 $440.24

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 3089806 Bypass Valve Plunger is a critical component in heavy-duty truck engines, designed to regulate oil flow and pressure. This ensures optimal engine performance and longevity, playing a significant role in the efficiency and reliability of heavy-duty trucks 1.

Function and Operation

The Bypass Valve Plunger manages oil flow and pressure within the engine system. When oil pressure exceeds a certain threshold, the plunger allows excess oil to bypass the main oil filter and return to the oil sump. This mechanism maintains consistent oil pressure and flow, essential for engine lubrication and cooling 2.

Purpose of the Bypass Valve Plunger

The 3089806 Bypass Valve Plunger ensures the engine maintains adequate lubrication under varying conditions. By regulating oil pressure, it contributes to engine performance and longevity, preventing damage from excessive oil pressure and supporting overall truck efficiency 3.

Key Features

Characterized by a robust design and high-quality materials, the Cummins 3089806 Bypass Valve Plunger ensures durability and reliable performance under demanding conditions. Its design allows for precise control of oil flow and pressure, enhancing functionality within the engine system.

Benefits

Using the Cummins 3089806 Bypass Valve Plunger improves engine efficiency by ensuring optimal oil flow and pressure. This reduces wear and tear on engine components, enhancing reliability and longevity. The part’s design and materials contribute to its durability, making it valuable for heavy-duty truck maintenance.

Installation Process

Installing the Bypass Valve Plunger requires careful attention. The process involves removing the old plunger, cleaning the area, and fitting the new part. Tools may include a socket wrench and a specialized tool. Following the manufacturer’s guidelines ensures correct fitting and functionality within the engine system.

Common Issues and Troubleshooting

Common issues with the Bypass Valve Plunger include malfunctions due to wear or contamination. Troubleshooting involves checking for damage or blockages in the oil passages. Solutions may range from cleaning the component to replacing it if damage is detected. Regular inspection and maintenance can prevent issues.

Maintenance Tips

Regular maintenance is recommended to ensure the longevity and optimal performance of the Cummins 3089806 Bypass Valve Plunger. This includes periodic inspection for wear or damage and cleaning the component as necessary. Adhering to the manufacturer’s maintenance schedule maintains the efficiency and reliability of the part.

Manufacturer: Cummins

Cummins is renowned in the automotive and heavy-duty truck industry for producing high-quality components. With a history of innovation and excellence, Cummins has established a reputation for reliability and performance, including in the 3089806 Bypass Valve Plunger.

Role of Part 3089806 Bypass Valve Plunger in Engine Systems

The Bypass Valve Plunger (part 3089806) is integral to the operation of several key components within engine systems, ensuring optimal performance and protection of the engine.

Interaction with the Filter

In conjunction with the Filter, the Bypass Valve Plunger maintains oil flow. When the filter becomes clogged, the plunger allows oil to bypass the filter, ensuring a continuous supply of oil to the engine. This prevents engine damage due to lack of lubrication.

Full Flow Oil System

Within the Full Flow Oil system, the Bypass Valve Plunger ensures consistent oil circulation through the engine. By managing the flow, it maintains correct pressure levels, essential for efficient engine operation. This consistent flow is vital for removing contaminants and distributing lubricants to all moving parts.

Lubricating Oil Filter Head

The Lubricating Oil Filter Head relies on the Bypass Valve Plunger to regulate oil flow. When the filter media becomes saturated, the plunger activates to allow oil to bypass, protecting the engine from potential damage caused by restricted oil flow.

Lubricating Oil Filter Top Level Assembly Head

In the Lubricating Oil Filter Top Level Assembly Head, the Bypass Valve Plunger ensures that oil can still reach the engine even if the filter becomes blocked. This assembly head is designed to capture larger contaminants, and the plunger’s role is to provide an alternative pathway for oil, maintaining lubrication integrity.

Oil Priming Device Kit

The Oil Priming Device Kit works in tandem with the Bypass Valve Plunger to ensure that the engine is adequately primed with oil before start-up. The plunger helps maintain oil pressure during this process, facilitating a smooth and efficient engine start. It also assists in quickly establishing oil flow post-start, which is essential for the immediate protection of engine components.

Conclusion

The Cummins 3089806 Bypass Valve Plunger is a vital component in heavy-duty truck engines, ensuring optimal performance, reliability, and longevity. Its role in regulating oil flow and pressure is crucial for the efficient operation and protection of the engine. Regular maintenance and adherence to manufacturer guidelines are essential for maximizing the benefits of this part.


  1. Sheng, G. (2012). Vehicle Noise, Vibration and Sound Quality. SAE International.

  2. Sully, F. K. (1998). Motor Vehicle Mechanics Textbook, Fifth Edition. Heinemann Professional Publishing.

  3. Lakshminarayanan, P. A., & Nayak, N. S. (2011). Critical Component Wear in Heavy Duty Engines. John Wiley & Sons.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
7.0 x 6.0 x 6.0 in
Weight
0.141 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.