3067999
Water Pump Pulley
Cummins®

Introduction

The Cummins 3067999 Water Pump Pulley is a critical component designed for commercial trucks, facilitating the efficient operation of the engine cooling system. This part ensures the proper circulation of coolant, which is essential for maintaining optimal engine temperature and performance.

Basic Concepts of Water Pump Pulleys

A water pump pulley is a mechanical device that connects the water pump to the engine’s drive system. It transfers rotational force from the engine to the water pump via a serpentine belt, enabling the pump to circulate coolant through the engine. This interaction absorbs heat and dissipates it through the radiator. The pulley’s design and material must withstand continuous motion and belt tension ¹.

Purpose of the Cummins 3067999 Water Pump Pulley

This Cummins part drives the water pump, facilitating coolant circulation through the engine. This ensures heat dissipation during operation and maintains engine temperature within safe limits, supporting overall engine efficiency and longevity ².

Key Features

The 3067999 is characterized by its robust design and construction. Made from high-quality materials, it offers durability and resistance to wear. The pulley features a precise groove pattern to securely grip the serpentine belt, minimizing slippage and ensuring efficient power transmission. Its build quality is designed to handle the rigors of commercial truck operation, providing reliable performance over extended periods ³.

Benefits

This part enhances engine cooling efficiency by ensuring consistent and reliable operation of the water pump. This results in reduced wear on the water pump and other cooling system components. Additionally, it contributes to enhanced overall engine performance by helping to maintain optimal operating temperatures, which can lead to improved fuel efficiency and reduced emissions ⁴.

Installation Process

Installing the 3067999 requires careful attention to detail. The process involves aligning the pulley with the water pump and securing it in place using the appropriate fasteners. It is important to ensure that the pulley is correctly positioned to avoid misalignment, which could lead to belt slippage or damage. Proper tensioning of the serpentine belt is also crucial to ensure efficient power transmission and to prevent premature wear of the pulley and belt.

Troubleshooting Common Issues

Common issues associated with water pump pulleys include noise, wobble, and belt slippage. These problems can often be traced to misalignment, wear, or damage to the pulley or belt. Diagnostic steps may involve inspecting the pulley for signs of wear or damage, checking the alignment with the water pump, and ensuring proper belt tension. Solutions may range from realigning or tightening the pulley to replacing worn or damaged components.

Maintenance Tips

Regular maintenance is key to prolonging the life of the 3067999. This includes periodic inspection for signs of wear or damage, ensuring proper alignment and belt tension, and cleaning the pulley to remove any buildup that could affect its operation. Replacement should be considered if significant wear or damage is detected, or if the pulley shows signs of inefficient operation.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions solutions. With a strong reputation in the commercial truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s product range includes engines and components designed for durability, efficiency, and performance in demanding applications.

Water Pump Pulley Part 3067999 Compatibility with Cummins Engines

The Water Pump Pulley part number 3067999, manufactured by Cummins, is designed to fit a variety of Cummins engines. Below is a detailed description of its compatibility across different engine models:

G855 Series

• G855
• G855 CM558
• GTA855 CM558 (CM2358)

The Water Pump Pulley part 3067999 is compatible with the G855 series engines, including the G855, G855 CM558, and GTA855 CM558 (CM2358). This part is engineered to ensure proper water pump operation, maintaining the necessary fluid flow for engine cooling.

G101 Series

• G101

The G101 engine also accommodates the Water Pump Pulley part 3067999. This compatibility ensures that the water pump functions efficiently, contributing to the engine’s overall cooling system performance.

N14 Series

• N14 CELECT PLUS
• N14 G
• N14 MECHANICAL

The N14 series engines, including the N14 CELECT PLUS, N14 G, and N14 MECHANICAL, are designed to work with the Water Pump Pulley part 3067999. This ensures that the water pump operates smoothly, maintaining the engine’s cooling system integrity.

NH/NT 855 Series

• NH/NT 855

The NH/NT 855 engine is another model that is compatible with the Water Pump Pulley part 3067999. This compatibility is crucial for maintaining the engine’s cooling system efficiency.

QSN14 CM876 N103

The QSN14 CM876 N103 engine also fits the Water Pump Pulley part 3067999. This ensures that the water pump functions correctly, contributing to the engine’s cooling system performance.

Role of Part 3067999 Water Pump Pulley in Engine Systems

The Part 3067999 Water Pump Pulley is an integral component in the operation of various engine systems, particularly those involving the water pump and idler mechanisms. This pulley is designed to work in conjunction with the water pump, ensuring efficient coolant circulation throughout the engine.

When integrated with the Water Pump, the pulley facilitates the rotation of the pump impeller, which is essential for maintaining optimal engine temperature. The impeller draws coolant from the engine block and circulates it through the radiator, where it is cooled before returning to the engine. This continuous cycle is vital for preventing engine overheating.

In systems that include an Idler Pump, the pulley also plays a role in maintaining the tension of the drive belt. The idler pump assists in regulating the coolant flow, and the pulley ensures that the belt remains taut, allowing for smooth and consistent operation of both the water pump and the idler pump.

For Water and Idler Pump configurations, the pulley is a central component that coordinates the movement between the two pumps. It ensures that both the primary water pump and the idler pump operate in harmony, enhancing the overall efficiency of the cooling system.

In a Water Pump Kit, the pulley is often included to provide a complete solution for coolant circulation. The kit may contain all necessary components for a full water pump replacement, and the pulley is crucial for integrating these parts into the engine’s drive system.

Overall, the Part 3067999 Water Pump Pulley is a key element in ensuring that the water pump and associated components function correctly, contributing to the engine’s reliability and performance.

Conclusion

The Cummins 3067999 Water Pump Pulley is a vital component in the engine cooling system of commercial trucks. Its robust design, precise functionality, and compatibility with various Cummins engines make it an essential part for maintaining engine efficiency and performance. Regular maintenance and proper installation are crucial for ensuring the longevity and reliability of this part.