3337273
O-Ring Seal
Cummins®

AVAILABLE

Cummins®

More than 10 are currently available

Ships within 2-4 business days

$18.95 $22.55

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 3337273 O-Ring Seal is a component designed for use in heavy-duty truck maintenance and operation. Its purpose is to provide a reliable seal in various applications within the truck’s systems, ensuring the integrity of fluid and gas containment. The significance of this O-Ring Seal lies in its ability to maintain system efficiency and prevent leaks, which can lead to performance issues and increased maintenance costs 1.

Basic Concepts of O-Ring Seals

An O-Ring Seal is a type of gasket with a circular cross-section, designed to create a seal between two or more parts. It functions by being compressed within a groove, creating a barrier that prevents the passage of fluids or gases. O-Rings are typically made from elastomers such as nitrile, silicone, or fluorocarbon, chosen for their flexibility, resilience, and resistance to various environmental factors. The effectiveness of an O-Ring Seal is based on its ability to deform under compression and return to its original shape, providing a consistent seal over time 2.

Purpose of the 3337273 O-Ring Seal in Truck Operation

This Cummins part plays a specific role in the operation of heavy-duty trucks by ensuring the integrity of seals in systems where it is installed. This may include fuel systems, hydraulic systems, or other components where fluid or gas containment is necessary. By maintaining a reliable seal, the O-Ring contributes to the overall efficiency and reliability of the truck’s operation 3.

Key Features of the 3337273 O-Ring Seal

The design and material characteristics of this part are tailored to meet the demands of heavy-duty truck applications. It is constructed from materials that offer resistance to a range of operating conditions, including temperature variations, chemical exposure, and mechanical stress. The seal’s durability is enhanced by its precise dimensions and the quality of the elastomer used, ensuring it can withstand the rigors of truck operation.

Benefits of Using the 3337273 O-Ring Seal

The advantages provided by this part include improved sealing efficiency, which helps maintain system performance and reduce the risk of leaks. Its longevity is a result of the high-quality materials and design, which allow it to perform reliably over extended periods. Additionally, the seal’s resistance to various operating conditions ensures it can function effectively in the challenging environments typical of heavy-duty truck use.

Installation Considerations

Proper installation of this Cummins part is important to ensure optimal performance and longevity. Guidelines for installation include ensuring the groove is clean and free of debris, using the correct amount of lubrication to facilitate seating, and avoiding over-compression of the O-Ring. Following these best practices helps to maintain the integrity of the seal and the systems it protects.

Troubleshooting Common Issues

Common problems associated with O-Ring Seals, including the 3337273, may involve leaks, extrusion, or failure due to environmental factors. Troubleshooting steps can include inspecting the O-Ring for signs of wear or damage, checking the groove for proper dimensions and cleanliness, and ensuring that the O-Ring is compatible with the system’s fluids and operating conditions.

Maintenance Tips

Regular inspection and maintenance of the 3337273 O-Ring Seal can help prolong its service life and ensure continued reliable performance. This includes checking for signs of wear or degradation, replacing the seal according to the manufacturer’s recommendations or as part of routine maintenance, and ensuring that the systems in which it is used are operating within specified parameters.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions technologies. With a history of innovation and a strong reputation in the heavy-duty truck industry, Cummins is known for its commitment to quality and performance. The company’s product range includes components and systems designed to meet the demanding requirements of heavy-duty applications.

Cummins Engine O-Ring Seal 3337273 Compatibility

The O-Ring Seal part number 3337273, manufactured by Cummins, is a critical component in ensuring the integrity and performance of various Cummins engine models. This seal is designed to fit seamlessly within the engine systems, providing a reliable barrier against leaks and maintaining the necessary pressure within the engine’s operational parameters.

QSK78 CM500 and QSV81G Engines

This part is compatible with the QSK78 CM500 and QSV81G engines. These engines are known for their robust design and high performance, often used in heavy-duty applications. The seal ensures that the engine’s internal components remain protected from contaminants and that the engine operates efficiently.

QSV91-G4 CM558/CM700 V102 and QSV91G Engines

For the QSV91-G4 CM558/CM700 V102 and QSV91G engines, the O-Ring Seal 3337273 plays a vital role in maintaining the engine’s operational integrity. These engines are typically used in demanding environments where reliability and durability are paramount. The seal’s precision fit helps in preventing oil and fluid leaks, thereby extending the engine’s lifespan and ensuring consistent performance.

QSW/QSV82 and QSW73 Engines

The O-Ring Seal 3337273 is also suitable for the QSW/QSV82 and QSW73 engines. These engines are designed for versatility and efficiency, often used in a variety of applications from industrial to marine. The seal’s role in these engines is to provide a tight seal that prevents any leakage, ensuring that the engine operates smoothly and efficiently under various conditions.

Each of these engines benefits from the O-Ring Seal 3337273, which is engineered to meet the specific requirements of Cummins’ high-performance engines. The seal’s compatibility across these models underscores its importance in maintaining the engine’s operational integrity and performance.

Role of Part 3337273 O-Ring Seal in Engine Systems

The Part 3337273 O-Ring Seal is integral to maintaining the integrity and efficiency of various engine systems by ensuring proper sealing in critical junctions. Here’s how it fits within the provided components:

Turbocharger Systems

In turbocharger arrangements, the O-ring seal is used in the turbocharger gasket kit to prevent leaks between the turbocharger and its housing. It also plays a role in the turbocharger assembly plumbing by sealing connections in the turbocharger coolant and turbocharger oil systems, ensuring that fluids are directed correctly without any seepage.

Cooling Systems

For the cooler and intercooler systems, the O-ring seal is employed in the oil cooler subassembly and oil cooler assembly housing to maintain a tight seal. This prevents coolant or oil from escaping, which is essential for the efficient operation of these cooling components.

Lubricating Systems

In the lubricating oil system, the O-ring seal is critical in the lubricating oil drain tube and oil drain connection. It ensures that oil is effectively drained from the system without any loss, maintaining the lubrication integrity of moving parts.

Filtration Systems

Within the filter systems, specifically the full flow oil filter, the O-ring seal is used to create a secure connection between the filter housing and the engine, preventing any bypass of unfiltered oil into the system.

Plumbing and Housing

The O-ring seal is extensively used in various plumbing applications, such as turbocharger plumbing and general engine plumbing, to ensure that all fluid pathways remain sealed. In housing components like the flywheel assembly housing and oil cooler subassembly housing, it prevents any fluid leakage, preserving the operational efficiency of these parts.

Assembly and Connection Points

In oil assembly lubricating and engine oil assembly cooler, the O-ring seal is vital for securing connections and ensuring that the assembly remains leak-free. It is also used in the turbocharger oil drain connection to maintain the integrity of the oil drainage system.

Overall, the Part 3337273 O-Ring Seal is a fundamental component in ensuring that various engine systems operate efficiently and without fluid loss, contributing to the overall performance and longevity of the engine.

Conclusion

The Cummins 3337273 O-Ring Seal is a vital component in the maintenance and operation of heavy-duty trucks and engines. Its role in ensuring the integrity of seals across various systems highlights its importance in maintaining system efficiency, preventing leaks, and contributing to the overall performance and longevity of the engine. Proper installation, regular maintenance, and troubleshooting common issues are essential practices to maximize the benefits of this part.


  1. Dempsey, Paul. Troubleshooting and Repairing Diesel Engines, 5th Edition. McGraw-Hill, 2018.

  2. Viskup, Richard. Diesel and Gasoline Engines. IntechOpen, 2020.

  3. General Information, Bulletin Number 4021389, Operation and Maintenance Manual.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
1.3 x 1.3 x 0.13 in
Weight
0.01 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.