3978176
Lubricating Oil Suction Tube
Cummins®

The Lubricating Oil Suction Tube 3978176, manufactured by Cummins, is a critical component in the lubrication system of heavy-duty truck engines. This tube ensures efficient oil circulation from the sump to various engine components, reducing friction, dissipating heat, and protecting moving parts. Cummins is renowned for its quality and innovation in engine component manufacturing.

Function and Operation

The Lubricating Oil Suction Tube 3978176 facilitates the smooth suction and transportation of oil from the sump to the engine’s components. Positioned to draw oil through the oil pickup screen, it filters out contaminants, ensuring clean oil circulation. This process is essential for maintaining engine efficiency and longevity by providing necessary lubrication to all moving parts ².

Key Features

Constructed from durable materials, the Lubricating Oil Suction Tube 3978176 is designed to withstand high temperatures and pressures within the engine compartment. Its precise dimensions and smooth internal surfaces facilitate efficient oil flow. Reinforced sections may be included to enhance durability and prevent leaks, ensuring reliable performance over the engine’s operational life ¹.

Benefits

The use of the Lubricating Oil Suction Tube 3978176 in heavy-duty truck engines offers several advantages. It ensures consistent oil flow, which is vital for maintaining optimal lubrication under varying operating conditions. This consistent lubrication extends the lifespan of engine components by reducing wear and tear. Additionally, the tube’s reliable design enhances the overall reliability of the engine, making it a valuable component in heavy-duty applications ².

Installation and Compatibility

Proper installation of the Lubricating Oil Suction Tube 3978176 is crucial for its effective operation within the engine lubrication system. Installation guidelines should be followed to secure the tube and ensure a leak-free connection to the oil pump and sump. Compatibility with various Cummins engine models is important, ensuring the tube fits correctly and functions as intended within the specific engine design.

Maintenance and Troubleshooting

Routine maintenance of the Lubricating Oil Suction Tube 3978176 is important for ensuring its optimal functioning. This includes regular inspections for signs of wear, damage, or leaks, and ensuring the tube remains securely connected. Common issues such as oil leaks or reduced oil flow can often be traced back to the suction tube. Diagnostic procedures may involve checking the tube’s condition and connections, and troubleshooting tips can include tightening connections or replacing the tube if necessary.

Safety Considerations

When working with the Lubricating Oil Suction Tube and the engine lubrication system, it is important to observe safety guidelines and precautions. Potential hazards include hot engine components and pressurized oil systems. To mitigate these risks, ensure that the engine is cool before beginning any work, and use appropriate personal protective equipment. Additionally, follow all manufacturer guidelines for handling and installing engine components to ensure safe and effective operation.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry. The company’s product range includes a variety of engine components and systems designed to meet the demanding requirements of heavy-duty applications. Cummins’ commitment to quality and innovation is evident in its engine component manufacturing, ensuring that each part, including the Lubricating Oil Suction Tube 3978176, meets the highest standards of performance and reliability.

Cummins Engine Compatibility with Lubricating Oil Suction Tube Part 3978176

The Cummins part 3978176, a Lubricating Oil Suction Tube, is designed to fit a variety of Cummins engines. This part is integral to the engine’s lubrication system, ensuring that oil is properly circulated to maintain engine performance and longevity.

Compatible Engines

• B6.7 G CMOH6.0
• B125, ISB CM2150
• ISB/ISD6.7 CM2150 SN
• ISBE CM2150
• ISBE CM800
• QSB6.7 CM2250
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

Grouping of Compatible Engines

The engines listed can be grouped based on their model series and specifications:

1. B Series Engines

   • B6.7 G CMOH6.0
   • B125

2. ISB/ISD Series Engines

   • ISB CM2150
   • ISB/ISD6.7 CM2150 SN

3. ISBE Series Engines

   • ISBE CM2150
   • ISBE CM800

4. QSB Series Engines

   • QSB6.7 CM2250
   • QSB6.7 CM850 (CM2850)
   • QSB7 CM2880 B117

Each of these engines, despite their differences in power output and specific applications, share a commonality in their requirement for the lubricating oil suction tube part 3978176. This part ensures that the engine’s lubrication system operates efficiently, drawing oil from the sump and delivering it to the various moving parts that require lubrication.

Role of Part 3978176 Lubricating Oil Suction Tube in Engine Systems

The lubricating oil suction tube, identified as part 3978176, is integral to the efficient operation of engine systems by ensuring a consistent and reliable flow of oil from the oil pan to the engine’s lubrication system. This component is designed to draw oil from the oil pan, where it is stored, and deliver it to the oil pump.

Once the oil is in the pump, it is pressurized and distributed throughout the engine to lubricate moving parts, reduce friction, and dissipate heat. The suction tube must be properly aligned and sealed to prevent oil leaks and ensure that the pump receives a steady supply of oil.

In conjunction with the oil pan, the suction tube plays a significant role in maintaining the engine’s lubrication integrity, which is essential for the longevity and performance of the engine components.

Conclusion

The Lubricating Oil Suction Tube 3978176 is a vital component in the lubrication system of heavy-duty truck engines. Its role in ensuring efficient oil circulation, reducing friction, and protecting engine components underscores its importance in maintaining engine performance and longevity. Proper installation, maintenance, and adherence to safety guidelines are essential for maximizing the benefits of this Cummins part.