3968984
Oil Gauge Tube
Cummins®

Introduction

The Cummins 3968984 Oil Gauge Tube is a critical component for heavy-duty truck engines, designed to ensure accurate measurement and monitoring of oil levels within the engine’s lubrication system. This part plays a significant role in maintaining engine efficiency and protecting it from damage due to inadequate lubrication ¹.

Function and Operation

This Cummins part operates within the engine’s lubrication system, conveying oil level information from the sump to the oil gauge on the instrument panel. It provides a direct pathway for oil, enabling the gauge to display the current oil level. This allows operators to monitor and maintain appropriate lubrication levels, which is vital for the engine’s health and performance ².

Key Features

Constructed with durability and precision, the 3968984 is made from high-quality materials resistant to the harsh conditions within an engine. Its dimensions are designed to fit seamlessly within the engine’s architecture, ensuring accurate oil level readings. Features may include reinforced sections for pressure resistance and corrosion-resistant coatings to enhance durability ³.

Benefits

The Oil Gauge Tube offers several advantages, including accurate oil level readings crucial for maintaining optimal engine lubrication. Its reliable performance under various operating conditions ensures operators can trust the readings, facilitating timely maintenance and reducing the risk of engine damage. By contributing to overall engine health and longevity, this component enhances the efficiency and lifespan of heavy-duty trucks.

Installation and Maintenance

Proper installation of the 3968984 is essential for its effective operation. It is recommended to follow manufacturer guidelines closely, ensuring the tube is securely fitted and aligned correctly within the engine. Regular maintenance, including periodic checks for wear or damage, can help ensure the tube continues to function correctly. Cleaning the tube and its connections as part of routine engine maintenance can also contribute to its longevity and performance.

Troubleshooting Common Issues

Common issues with Oil Gauge Tubes may include inaccurate readings or leaks. Inaccurate readings can often be traced back to blockages within the tube or issues with the gauge itself. Ensuring the tube is clear of obstructions and calibrating the gauge can resolve these problems. Leaks may indicate a fault with the tube’s fittings or seals, requiring inspection and possible replacement of affected parts. Addressing these issues promptly can help maintain the integrity of the engine’s lubrication system.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history of innovation and quality, Cummins has established a strong reputation in the automotive industry, particularly for its heavy-duty truck components. The company’s commitment to excellence and customer satisfaction is reflected in its wide range of products, which are designed to meet the demanding requirements of various applications.

Compatibility of Oil Gauge Tube Part 3968984 with Cummins Engines

The Oil Gauge Tube part number 3968984, manufactured by Cummins, is designed to be compatible with a variety of Cummins engine models. This part is integral for ensuring accurate oil level readings, which is crucial for the maintenance and longevity of the engine.

Engines Compatible with 3968984

• 4B3.9
• 6B5.9
• B5.6 CM2670 B152B
• B5.9 CM2670 B166C
• ISB CM550
• QSB5.9 44 CM550
• QSB5.9 CM2880 B139
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

Grouping of Compatible Engines

• QSB5.9 Series:

  • QSB5.9 44 CM550
  • QSB5.9 CM2880 B139

• QSB6.7 Series:

  • QSB6.7 CM2250
  • QSB6.7 CM2350 B105
  • QSB6.7 CM850 (CM2850)

• Other Compatible Engines:

  • 4B3.9
  • 6B5.9
  • B5.6 CM2670 B152B
  • B5.9 CM2670 B166C
  • ISB CM550
  • QSB7 CM2880 B117

This part ensures that the oil gauge provides reliable and accurate readings, which is essential for maintaining engine health and preventing potential damage from low oil levels.

Role of Part 3968984 Oil Gauge Tube in Engine Systems

The 3968984 Oil Gauge Tube 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 level gauge and the engine’s oil reservoir, ensuring that the gauge provides a precise reading of the oil level.

In operation, the Oil Gauge Tube allows oil to rise within it, corresponding to the oil level in the reservoir. This rise in oil level is then translated into a reading on the gauge, informing the operator of the current oil level within the engine.

The accuracy of the Oil Gauge Tube is essential for the proper functioning of the oil level gauge. Any discrepancies in the tube’s performance can lead to inaccurate oil level readings, potentially resulting in engine damage due to either overfilling or underfilling of oil.

Furthermore, the Oil Gauge Tube plays a role in the overall maintenance and diagnostic processes of the engine. Regular checks of the oil level, facilitated by the gauge, are a standard part of engine maintenance routines. Accurate readings from the gauge, enabled by the Oil Gauge Tube, allow for timely oil changes and can indicate potential issues within the engine, such as oil leaks or consumption.

Conclusion

The Cummins 3968984 Oil Gauge Tube is a key component in the engine’s oil management system, working in conjunction with the oil level gauge to ensure accurate monitoring and maintenance of the engine’s oil levels. Its role in facilitating accurate oil level readings is crucial for maintaining engine health, ensuring efficient operation, and preventing potential damage from inadequate lubrication.