3087691
Draincock
Cummins®

Introduction

The Cummins 3087691 Drain Cock is a component designed for use in commercial trucks. It serves a specific function within the truck’s system, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and operation is key to maintaining the truck’s performance and longevity.

Basic Concepts of Drain Cocks

A drain cock is a valve used to release fluid from a system. It functions by providing a controlled outlet for liquids, allowing for the removal of contaminants, water, or other unwanted substances. Drain cocks are commonly used in various systems, including fuel, water, and hydraulic systems, to ensure the purity and quality of the fluid within ¹.

Purpose of the Cummins 3087691 Drain Cock

The Cummins 3087691 Drain Cock is specifically designed to facilitate the draining of fluids from a truck’s system. It plays a role in maintaining the cleanliness and integrity of the fluid by allowing for the periodic removal of sediment or water that may accumulate. This function is vital for the proper operation of the truck, as it helps prevent damage to sensitive components and ensures the fluid performs as intended ².

Key Features

The Cummins 3087691 Drain Cock is characterized by several design elements that enhance its performance. It is constructed from durable materials to withstand the pressures and temperatures of the truck’s system. The design includes a straightforward mechanism for opening and closing the valve, ensuring ease of use during maintenance procedures. Additionally, it may feature threads or fittings that allow for secure attachment to the system, preventing leaks and ensuring a tight seal.

Benefits of Using the Cummins 3087691 Drain Cock

Incorporating the Cummins 3087691 Drain Cock into a truck’s system offers several advantages. It contributes to improved efficiency by ensuring the fluid remains clean and free of contaminants. The reliability of the drain cock means that maintenance tasks can be performed with confidence, reducing the risk of system failure. Furthermore, its design promotes ease of use, making it a practical component for routine maintenance ³.

Installation Process

Installing the Cummins 3087691 Drain Cock involves several steps to ensure it is properly integrated into the truck’s system. First, the area where the drain cock will be installed should be cleaned and prepared. Using the appropriate tools, the drain cock is then attached to the system, ensuring a secure fit. It is important to follow manufacturer guidelines to avoid damage to the component or the system.

Maintenance and Care

Regular maintenance of the Cummins 3087691 Drain Cock is important for its longevity and optimal performance. This includes periodic checks for leaks, ensuring the valve operates smoothly, and cleaning the area around the drain cock to prevent the accumulation of dirt or debris. Following a maintenance schedule helps identify any issues early, allowing for timely repairs or replacements.

Troubleshooting Common Issues

Common problems with the Cummins 3087691 Drain Cock may include leaks, difficulty in operation, or accumulation of debris. Troubleshooting steps involve inspecting the drain cock for signs of wear or damage, ensuring it is properly installed, and cleaning the valve to remove any obstructions. If issues persist, consulting the manufacturer’s guidelines or seeking professional assistance may be necessary.

Safety Considerations

When installing, maintaining, or troubleshooting the Cummins 3087691 Drain Cock, it is important to observe safety guidelines. This includes wearing appropriate personal protective equipment, ensuring the truck’s system is depressurized before working on it, and following all manufacturer recommendations. Safety precautions help prevent accidents and ensure the task is performed effectively.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the commercial truck industry. Their product range includes engines, filtration systems, and aftermarket parts, all designed to meet the demanding requirements of commercial applications.

Cummins Drain Cock Part 3087691 Compatibility

The Cummins Drain Cock part number 3087691 is a versatile component designed to fit a variety of Cummins engines. This part is essential for the maintenance and operation of these engines, ensuring efficient fluid drainage and system integrity.

G855 Series

The 3087691 drain cock is compatible with the following G855 series engines:

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

N14 Series

This drain cock also fits several variants of the N14 series engines:

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

NH/NT 855 Series

The part is also suitable for the following NH/NT 855 series engines:

• NH/NT 855

QSK19 Series

The QSK19 series engines that can use the Cummins Drain Cock part number 3087691 include:

• QSK19 CM500
• QSK19 CM850 MCRS

QSN14 and QSNT14 Series

The drain cock is compatible with the following QSN14 and QSNT14 series engines:

• QSN14 CM876 N103
• QSNT14 CM876 N102

QST30 Series

Lastly, the QST30 series engines that can utilize this drain cock are:

• QST30 CM2350 T101
• QST30 CM552

This compatibility ensures that the Cummins Drain Cock part number 3087691 can be used across a wide range of Cummins engines, providing a reliable solution for fluid management and maintenance.

Role of Part 3087691 Drain Cock in Engine Systems

The 3087691 Drain Cock is an essential component in various engine systems, facilitating the efficient management of fluids and ensuring the longevity and performance of the engine. Here’s how it integrates with different components:

Base Parts and Block

In the foundational structure of an engine, the Drain Cock is positioned to allow for the periodic removal of accumulated fluids from the base parts and block. This helps in preventing the buildup of contaminants that could otherwise lead to inefficiencies or damage.

Cylinder and Block Drain

Within the cylinder and its associated block, the Drain Cock plays a significant role in maintaining the integrity of the cooling system. By enabling the discharge of coolant, it assists in the removal of any sediment or debris that may have settled, thus ensuring consistent thermal management around the cylinder.

Cylinder Block Kit and Cylinder Mounting Block

When installed as part of a cylinder block kit or within the cylinder mounting block, the Drain Cock provides a convenient point for draining the cooling system during maintenance or repair procedures. This is particularly important in ensuring that the cooling system is free from old coolant, which can degrade over time and lose its effectiveness.

Housing and Thermostat

In conjunction with the housing and thermostat, the Drain Cock ensures that the cooling system can be flushed thoroughly. This is vital for the thermostat to function correctly, as any buildup within the system could impede its operation, leading to inconsistent engine temperatures.

Plumbing and Aftercooler Water

The Drain Cock is also integral to the plumbing system, especially in setups involving aftercooler water. It allows for the efficient draining of water from the aftercooler, which is essential for maintaining the performance and longevity of the aftercooling system.

Water Discharge and Resistor

In systems where water discharge is a regular requirement, such as those involving a resistor, the Drain Cock provides a reliable method for expelling water. This is particularly important in preventing corrosion and ensuring that the resistor operates within optimal conditions.

Auxiliary Cooling System

For engines equipped with an auxiliary cooling system, the Drain Cock is a key component in maintaining the system’s efficiency. It allows for the periodic draining and flushing of the auxiliary cooling loop, ensuring that it remains free from contaminants and operates effectively.

Conclusion

In summary, the 3087691 Drain Cock is a versatile component that enhances the maintenance and operational efficiency of various engine systems by facilitating the removal of fluids and contaminants. Its compatibility with a wide range of Cummins engines makes it a valuable asset for ensuring the longevity and performance of commercial trucks.