3087690
Draincock
Cummins®

The Cummins 3087690 Draincock is a specialized component designed for use in commercial trucks. Its primary function is to facilitate the draining of fluids such as coolant, oil, or fuel from the truck’s system. This part is integral to maintaining the truck’s operational efficiency and ensuring that routine maintenance tasks can be performed with ease and precision.

Basic Concepts of a Draincock

A draincock, also known as a drain valve, is a device used in fluid systems to allow the controlled release of liquid. It typically consists of a valve that can be opened to let fluid out and closed to prevent leakage. Draincocks are commonly found in various applications, including automotive, marine, and industrial systems, where they play a vital role in maintenance and fluid management ¹.

Purpose of the Cummins 3087690 Draincock

The Cummins 3087690 Draincock is specifically designed to aid in the draining of fluids within a truck’s system. Whether it is coolant from the engine, oil from the lubrication system, or fuel from the tank, this draincock allows for efficient and controlled fluid release. This is particularly important during maintenance procedures such as fluid changes or system flushes, where complete and clean drainage is required to ensure the system’s continued performance and longevity ².

Key Features

The Cummins 3087690 Draincock boasts several key features that enhance its functionality. It is constructed from durable materials to withstand the harsh conditions often encountered in commercial truck environments. The design includes a robust valve mechanism that ensures a secure seal when closed and a smooth operation when opened. Additionally, the draincock may feature threads or fittings that allow for easy integration into the truck’s fluid system, ensuring a leak-free connection.

Benefits of Using the Cummins 3087690 Draincock

Utilizing the Cummins 3087690 Draincock offers several advantages. Its design promotes ease of use, allowing for quick and efficient fluid drainage. The durability of the materials ensures long-term reliability, reducing the need for frequent replacements. Moreover, the efficient drainage capability helps in maintaining the cleanliness and integrity of the truck’s fluid systems, contributing to overall engine performance and longevity ³.

Installation and Usage

Installing the Cummins 3087690 Draincock involves several steps to ensure proper function and integration into the truck’s system. First, identify the location where the draincock will be installed, ensuring it is accessible for maintenance tasks. Using the appropriate tools, remove the old draincock if present and clean the installation area. Thread the new draincock into place, ensuring a tight and secure fit. Finally, test the draincock by briefly opening it to confirm proper operation and sealing.

Maintenance and Troubleshooting

Regular maintenance of the Cummins 3087690 Draincock is important to ensure its continued efficiency and reliability. This includes periodic checks for signs of wear or damage, cleaning the valve and surrounding area to prevent debris buildup, and ensuring the seal remains intact. Troubleshooting common issues such as leaks or blockages may involve tightening the draincock, cleaning the valve seat, or replacing worn-out components.

Safety Considerations

When using the Cummins 3087690 Draincock, it is important to observe several safety practices. Always ensure that the truck’s engine is off and cool before attempting to drain any fluids to avoid burns from hot liquids. Use caution when opening the draincock to control the flow of fluid and prevent spills. Additionally, ensure that the draincock is fully closed after use to prevent leaks and maintain system integrity.

Cummins 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 itself as a trusted name in the automotive and heavy-duty truck industry. The company is committed to innovation, quality, and customer satisfaction, providing a wide range of products and services that meet the needs of its diverse customer base.

Cummins Part 3087690 Draincock Compatibility

The Cummins part 3087690 Draincock is designed to fit a variety of engine models, ensuring efficient drainage and maintenance. Here is a detailed look at its compatibility across different engine series:

G855 Series

• G855
• G855 CM558
• GTA855 CM558 (CM2358)
• G101

The Draincock is engineered to work seamlessly with the G855 series engines, facilitating easy and effective drainage operations.

N14 Series

• N14 CELECT
• N14 CELECT PLUS
• N14 G
• N14 MECHANICAL

This part is compatible with the N14 series, including both CELECT and mechanical variants, ensuring that maintenance procedures are straightforward and efficient.

NH/NT 855 Series

• NH/NT 855

The Draincock fits the NH/NT 855 engine, providing reliable drainage capabilities for this specific model.

QSK19 Series

• QSK19 CM500
• QSK19 CM850 MCRS

These QSK19 engines are designed to work with the Draincock, ensuring that maintenance tasks are performed with ease.

QSN14 Series

• QSN14 CM876 N103

The Draincock is compatible with the QSN14 CM876 N103 engine, providing a reliable solution for drainage needs.

QSNT14 Series

• QSNT14 CM876 N102

This part fits the QSNT14 CM876 N102 engine, ensuring that maintenance procedures are efficient and effective.

QST30 Series

• QST30 CM2350 T101
• QST30 CM552

The Draincock is compatible with the QST30 series engines, including both CM2350 T101 and CM552 variants, ensuring reliable drainage for maintenance purposes.

Role of Part 3087690 Draincock in Engine Systems

Part 3087690, a Draincock, is an essential component in various engine systems, facilitating the efficient drainage of fluids. Its role is particularly significant in the following components:

• Base Parts and Block: The Draincock is integral to the base parts and block of an engine, allowing for the periodic drainage of accumulated fluids. This helps in maintaining the integrity of the base and block by preventing fluid buildup that could lead to corrosion or other forms of degradation.

• Cylinder and Block Drain: In cylinder and block drain systems, the Draincock enables the removal of coolant or other fluids from the cylinder block. This is important for maintenance routines, such as flushing out old coolant to replace it with fresh fluid, ensuring optimal thermal management of the engine.

• Cylinder Block Kit and Cylinder Mounting Block: When incorporated into a cylinder block kit or cylinder mounting block, the Draincock provides a convenient means to drain fluids during assembly or disassembly processes. This aids in the prevention of fluid contamination and ensures a clean working environment.

• Housing and Thermostat: Within the housing that encases the thermostat, the Draincock allows for the drainage of coolant. This is vital for thermostat replacement or maintenance, as it ensures that the housing is free from old coolant, which could otherwise mix with the new fluid and affect engine performance.

• Plumbing and Aftercooler Water Plumbing: In systems involving plumbing and aftercooler water plumbing, the Draincock is used to drain water or other fluids from the plumbing circuits. This is essential for the maintenance of these systems, ensuring that they operate efficiently without the risk of fluid buildup or contamination.

• Water Discharge and Resistor: The Draincock plays a role in water discharge systems by allowing for the controlled release of water, which is often used in cooling circuits. Additionally, in systems where a resistor is used to manage fluid flow, the Draincock aids in the maintenance and cleaning of these components by facilitating fluid drainage.

• Corrosion and System Maintenance: By enabling the regular drainage of fluids, the Draincock helps in reducing the risk of corrosion within the engine system. This is particularly important in components that are prone to fluid accumulation, such as the base and various plumbing circuits.

• Auxiliary Cooling: In auxiliary cooling systems, the Draincock is used to drain coolant or other cooling fluids. This ensures that the auxiliary cooling system remains efficient and free from contaminants, contributing to the overall cooling performance of the engine.

Conclusion

The Cummins 3087690 Draincock is a vital component in the maintenance and operation of commercial trucks. Its design and functionality ensure efficient and controlled drainage of fluids, contributing to the overall performance and longevity of the truck’s engine system. Regular maintenance and proper usage of this part are essential to ensure its continued efficiency and reliability.