3973330
Oil Gauge Tube
Cummins®

The Cummins 3973330 Oil Gauge Tube is a component designed for use in heavy-duty truck engines. Its purpose is to facilitate the accurate measurement of oil levels within the engine’s lubrication system. This part plays a role in the engine cooling system by ensuring that the engine operates within optimal lubrication parameters, which is important for the longevity and performance of the engine ¹.

Function and Operation

This Cummins part operates as part of the engine’s lubrication system. It is responsible for conveying oil level information from the engine’s oil pan to the oil gauge on the instrument panel. By providing a direct pathway for oil to travel, it allows for the precise measurement of the oil level, ensuring that the engine maintains adequate lubrication. Proper lubrication is necessary to reduce friction between moving parts, dissipate heat, and remove contaminants from the engine ².

Key Features

The 3973330 is constructed with specific design and material considerations to enhance its performance and durability. It is typically made from high-quality materials that can withstand the harsh environment within an engine compartment. The tube is designed to be resistant to corrosion and high temperatures, ensuring longevity and reliable operation. Its dimensions are tailored to fit precisely within the engine’s oil pan, allowing for accurate oil level readings.

Benefits

This part offers several advantages for heavy-duty truck applications. It provides accurate oil level monitoring, which is important for maintaining engine health. By ensuring that the engine is properly lubricated, it contributes to improved engine performance and efficiency. Additionally, the reliable operation of the oil gauge tube enhances the overall reliability of the engine, reducing the risk of unexpected downtime due to lubrication issues ³.

Installation and Maintenance

Proper installation of this part is important to ensure its effective operation. It should be installed according to the manufacturer’s guidelines, which may include specific torque settings for fasteners and alignment procedures. Regular maintenance, such as checking for leaks and ensuring the tube is free from obstructions, is recommended to maintain optimal performance. It is also advisable to inspect the tube during routine oil changes to ensure it remains in good condition.

Troubleshooting

Common issues with this part may include inaccurate oil level readings or leaks. These problems can often be traced to installation errors, damage to the tube, or blockages within the tube. Troubleshooting steps may involve checking the tube for physical damage, ensuring it is correctly installed, and clearing any obstructions that may be affecting its operation.

Manufacturer Information

Cummins Inc. is a well-established company in the automotive industry, known for its high-quality components for commercial vehicles. With a history of innovation and a strong reputation for reliability, Cummins continues to be a leading provider of diesel engines and related components. The company’s commitment to quality is evident in the design and manufacturing of parts like the 3973330, which are engineered to meet the demanding requirements of heavy-duty truck applications.

Compatibility

This part is designed to fit seamlessly with several engine models, ensuring accurate oil pressure readings and maintaining the integrity of the engine’s lubrication system. It is compatible with the following Cummins engines:

• ISB CM2150
• ISB CM850
• ISB6.7 CM2250
• ISB6.7 CM2350 B101

The Oil Gauge Tube is engineered to integrate smoothly with these engines, providing a reliable method for monitoring oil pressure. Its design ensures that it fits precisely in the designated location within the engine, facilitating easy installation and maintenance. This part is important for the operational health of the engine, as it allows for real-time monitoring of oil pressure, which is essential for preventing engine damage due to inadequate lubrication.

Role in Engine Systems

The 3973330 is an integral component in the accurate measurement and monitoring of oil levels within an engine system. This tube facilitates the connection between the oil reservoir and the oil gauge, ensuring that the gauge receives a consistent and reliable reading of the oil level.

In the context of an engine system, the Oil Gauge Tube works in conjunction with the oil level sensor to provide real-time data on the quantity of oil present. This information is vital for maintaining optimal engine performance and preventing potential damage due to oil starvation or overfilling.

The tube is designed to withstand the pressures and temperatures within the engine compartment, ensuring durability and accuracy over time. Its precise fitting and sealing properties are essential for preventing oil leaks, which could lead to inaccurate readings and compromised engine safety.

Additionally, the Oil Gauge Tube plays a supportive role in the overall lubrication system of the engine. By ensuring that the oil gauge provides accurate readings, it aids in the timely identification of oil level discrepancies, allowing for prompt corrective actions to be taken. This, in turn, contributes to the longevity and efficiency of the engine components, reducing the risk of wear and tear associated with improper lubrication.

Conclusion

The Cummins 3973330 Oil Gauge Tube is a critical component in the maintenance and operation of heavy-duty truck engines. Its role in accurately measuring oil levels ensures that engines remain properly lubricated, which is essential for their performance, efficiency, and longevity. Proper installation, regular maintenance, and prompt troubleshooting of issues are key to maximizing the benefits of this part. Cummins’ commitment to quality and innovation is reflected in the design and functionality of the 3973330, making it a reliable choice for engine lubrication systems.