3973325
Oil Gauge Tube
Cummins®

The Oil Level Gauge Tube, identified by part number 3973325 and manufactured by Cummins, is a vital component in the maintenance and operation of heavy-duty trucks. Cummins, a renowned name in the automotive industry, is known for its high-quality components designed to enhance the performance and reliability of heavy-duty vehicles. This gauge tube is integral to ensuring that the engine operates within optimal parameters by providing accurate oil level readings ¹.

Basic Concepts of Oil Level Gauge Tubes

An Oil Level Gauge Tube is a component that facilitates the measurement of oil levels within an engine. It operates by allowing oil to rise within the tube to a level that corresponds to the oil level in the sump. This mechanism provides a visual or mechanical indication of the oil level, enabling operators to maintain appropriate oil levels for engine lubrication and performance. The gauge tube is connected to the oil tank and typically features a float or similar mechanism that moves with the oil level, translating this movement into a readable format on the gauge ².

Purpose of the 3973325 Oil Level Gauge Tube

The 3973325 Oil Level Gauge Tube plays a role in the operation of a truck by ensuring that the engine maintains the correct oil levels. Proper oil levels are necessary for effective lubrication, which reduces friction and wear on engine components, enhances performance, and contributes to the longevity of the engine. By providing accurate oil level readings, this gauge tube aids in the prevention of engine damage due to low oil levels and supports the overall efficiency and reliability of the truck ³.

Key Features

The 3973325 Oil Level Gauge Tube is constructed from high-quality materials that offer durability and resistance to the harsh conditions within an engine compartment. Its design includes precise engineering to ensure accurate oil level readings. Unique attributes of this gauge tube may include corrosion-resistant coatings, robust construction to withstand high temperatures and pressures, and a design that minimizes the risk of leaks or inaccuracies in readings ⁴.

Benefits

Utilizing the 3973325 Oil Level Gauge Tube offers several advantages. It contributes to improved engine performance by ensuring that oil levels are maintained within the recommended range. The durable construction of the gauge tube enhances its longevity, reducing the need for frequent replacements. Additionally, the reliable oil level monitoring provided by this component supports the overall maintenance and operational efficiency of the truck ⁵.

Installation Process

Installing the 3973325 Oil Level Gauge Tube requires careful attention to ensure correct setup. The process involves securing the tube to the oil tank, connecting it to the gauge, and ensuring that all connections are tight and secure to prevent leaks. Tools required may include wrenches for tightening connections and a level to ensure the gauge is properly aligned. It is important to follow manufacturer guidelines to ensure the gauge tube operates correctly ⁶.

Maintenance Tips

To ensure the longevity and optimal performance of the 3973325 Oil Level Gauge Tube, regular maintenance practices are recommended. This includes periodic inspection for signs of wear or damage, cleaning the gauge and tube to remove any debris that may affect readings, and checking connections for tightness. Replacement guidelines should be followed if the gauge tube shows signs of significant wear or if readings become inaccurate ⁷.

Troubleshooting Common Issues

Common issues with the 3973325 Oil Level Gauge Tube may include inaccurate readings or leaks. Inaccurate readings can often be resolved by cleaning the gauge and tube, ensuring there is no obstruction in the tube, and checking the float mechanism for proper operation. Leaks may require tightening connections or, in some cases, replacing the gauge tube if damage is detected ⁸.

Compatibility

The Cummins Oil Level Gauge Tube, part number 3973325, is compatible with various Cummins engines, including the ISB series (ISB CM2150, ISB CM850, ISB6.7 CM2250, ISB6.7 CM2350 B101), QSB series (QSB6.7 CM2250, QSB6.7 CM2350 B105, QSB6.7 CM850 (CM2850)), and the QSB7 CM2880 B117 engine. This compatibility ensures that the gauge tube fits properly within the engine’s design, allowing for easy and accurate oil level monitoring ⁹.

Role of Part 3973325 Oil Level Gauge Tube in Engine Systems

The 3973325 Oil Level Gauge Tube is an integral component in the monitoring and maintenance of engine oil levels. This tube facilitates the accurate measurement of oil within the engine’s lubrication system, ensuring that the oil level remains within the optimal range for efficient engine operation.

In conjunction with the oil level gauge, the tube provides a visual or electronic readout of the oil level, allowing engineers and mechanics to promptly identify any discrepancies. This early detection is essential for preventing engine damage due to insufficient lubrication.

The tube is typically connected to the oil pan, where the engine’s lubricant is stored. As the oil level fluctuates during engine operation, the gauge tube transmits these changes to the oil level gauge, which then displays the current oil level. This setup is particularly important in high-performance engines where precise oil levels are necessary to maintain lubrication under extreme conditions.

Additionally, the 3973325 Oil Level Gauge Tube works in harmony with the engine’s oil pump and filtration system. The oil pump draws oil from the pan and circulates it through the engine, while the filtration system removes contaminants. The gauge tube ensures that the oil level in the pan is sufficient to meet the demands of the pump, thereby supporting the overall efficiency and longevity of the engine’s lubrication system ¹⁰.

Conclusion

The 3973325 Oil Level Gauge Tube is a critical component for maintaining the optimal performance and reliability of heavy-duty engines. By providing accurate oil level readings, this Cummins part ensures that engines operate within the recommended oil levels, thereby reducing friction, enhancing performance, and contributing to the longevity of the engine. Regular maintenance and proper installation are key to maximizing the benefits of this essential component.