3963443
Oil Gauge Tube
Cummins®

The Cummins 3963443 Oil Gauge Tube is a critical component designed for use in heavy-duty trucks. Its primary function is to measure and indicate the oil level within the engine, ensuring that the engine operates within safe parameters. This part is essential for maintaining engine health and performance, as proper oil levels are vital for lubrication, cooling, and overall engine efficiency ¹.

Function and Operation

The Oil Gauge Tube operates by connecting to the engine’s oil system and utilizing a float mechanism or similar technology to measure the oil level. As the oil level changes, the mechanism within the tube adjusts, allowing the gauge on the dashboard to display the current oil level. This real-time indication enables drivers and maintenance personnel to monitor the engine’s oil status, facilitating timely top-ups or identifying potential leaks ².

Key Features

This Cummins part is constructed from durable materials to withstand the harsh conditions within a heavy-duty truck engine. Its design includes precise dimensions to ensure a snug fit within the engine compartment, minimizing the risk of oil leaks. The tube is engineered to be compatible with specific Cummins engine models, ensuring accurate oil level readings. Additionally, it features a robust construction that resists corrosion and wear, contributing to its longevity and reliability ³.

Benefits of Using Cummins 3963443 Oil Gauge Tube

Utilizing the 3963443 offers several advantages. Its design ensures accurate oil level measurement, which is crucial for maintaining engine performance and preventing damage from insufficient lubrication. The tube’s durability means it can withstand the demanding conditions of heavy-duty truck operation, reducing the need for frequent replacements. Furthermore, its compatibility with Cummins engines ensures seamless integration and reliable performance.

Installation Process

Installing the Oil Gauge Tube involves several steps. First, ensure the engine is cool and the oil has been drained to a safe level. Locate the oil gauge tube fitting on the engine and remove the old tube if present. Carefully insert the new tube into the fitting, ensuring it is seated correctly. Reconnect any wiring or connections associated with the oil gauge system. Finally, refill the engine with the appropriate type and amount of oil, and check the gauge to ensure it is functioning correctly.

Maintenance Tips

To ensure the optimal performance of the 3963443, regular maintenance is recommended. Inspect the tube and its connections for any signs of leaks or damage during routine engine checks. Clean the area around the tube to prevent debris from affecting its operation. If the gauge reading appears inconsistent, verify the tube’s installation and consider professional inspection if necessary.

Troubleshooting Common Issues

Common issues with the Oil Gauge Tube may include inaccurate readings or leaks. Inaccurate readings can often be resolved by checking the tube’s installation and ensuring it is properly seated. Leaks may indicate a damaged tube or a faulty seal, requiring replacement or repair. Regular inspections and maintenance can help identify and address these issues before they lead to more significant problems.

Cummins Company Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality, innovation, and reliability in the automotive and heavy-duty truck industries. The company offers a wide range of products and services designed to meet the needs of various applications, from on-highway to off-highway and industrial uses.

Cummins Oil Gauge Tube Part 3963443 Compatibility

The Cummins Oil Gauge Tube part number 3963443 is designed to fit a variety of Cummins engines, ensuring accurate oil pressure readings and maintaining engine health. Here is a detailed overview of the engines with which this part is compatible:

6 Series Engines

• 6B5.9
• 6C8.3

B Series Engines

• B4.5

G Series Engines

• G8.3

ISB Series Engines

• ISB CM2150
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

ISBE Series Engines

• ISBE4 CM850

ISC Series Engines

• ISC CM2150
• ISC CM850
• ISC8.3 CM2250

ISL Series Engines

• ISL CM2150
• ISL9 CM2150 SN
• ISL9 CM2250

L GAS PLUS Series Engines

• L GAS PLUS CM556

QSB Series Engines

• QSB3.9 30 CM550
• QSB5.9 30 CM550
• QSB5.9 44 CM550
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

QSC Series Engines

• QSC8.3 CM554
• QSC8.3 CM850 (CM2850)

Role of Part 3963443 Oil Gauge Tube in Engine Systems

The Part 3963443 Oil Gauge Tube is an integral component in the accurate measurement and monitoring of oil levels within an engine system. It works in conjunction with several key components to ensure the engine operates efficiently and safely.

Integration with the Dipstick

The Oil Gauge Tube interfaces directly with the dipstick, which is inserted into the tube to check the oil level. The dipstick, when pulled out, provides a visual and tactile indication of the oil level, allowing for quick assessments during maintenance checks.

Connection to the Oil Level Gauge

The Oil Gauge Tube is also connected to the oil level gauge, which is typically located on the instrument panel of the vehicle. This gauge receives information from the tube about the oil level, translating it into a readable format for the driver. This real-time data helps in making informed decisions about oil changes and potential issues.

Relationship with the Oil Pan Cover

Situated above the oil pan, the Oil Gauge Tube is often mounted through the oil pan cover. This cover seals the oil pan, preventing leaks and contamination. The tube extends into the oil pan, allowing it to accurately measure the oil level within.

Overall Function in the System

In summary, the Part 3963443 Oil Gauge Tube plays a significant role in the engine’s lubrication system. It ensures that the oil level is consistently monitored, which is essential for maintaining proper lubrication of moving parts, preventing wear and tear, and ensuring the longevity and performance of the engine.

Conclusion

The Cummins 3963443 Oil Gauge Tube is a vital component in the maintenance and operation of heavy-duty truck engines. Its accurate measurement of oil levels ensures that engines operate efficiently and safely, contributing to the overall performance and longevity of the vehicle. Regular maintenance and proper installation of this part are crucial for optimal engine health.