4988324
Hydraulic Pump
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$569.95 $678.24

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

Introduction

The Cummins 4988324 Hydraulic Pump is a component designed for use in commercial trucks, playing a significant role in their hydraulic systems. This part is integral to the operation of various truck functions, enhancing efficiency and performance in hydraulic-driven applications.

Basic Concepts of Hydraulic Pumps

Hydraulic systems operate on the principles of fluid dynamics, where hydraulic fluid is used to transmit force and motion. Hydraulic pumps are vital components in these systems, responsible for generating the fluid flow necessary to power hydraulic actuators and other components. They convert mechanical energy into hydraulic energy, which is then used to perform work 1.

Function and Operation of the 4988324 Hydraulic Pump

The 4988324 Hydraulic Pump operates by drawing hydraulic fluid from a reservoir and pressurizing it to facilitate the hydraulic cycle. This cycle involves the pump’s components, such as the inlet and outlet ports, pistons, and valves, working in concert to ensure a continuous flow of pressurized fluid. The pump’s design allows it to efficiently handle the demands of commercial truck applications 2.

Purpose of the 4988324 Hydraulic Pump in Truck Operations

In commercial trucks, the 4988324 Hydraulic Pump serves multiple functions. It is involved in the operation of braking systems, where it helps modulate brake pressure, and in steering mechanisms, where it assists in turning the wheels with precision. Additionally, it powers other hydraulic-driven functions, contributing to the overall performance and safety of the vehicle 3.

Key Features of the 4988324 Hydraulic Pump

The design and construction of the 4988324 Hydraulic Pump incorporate high-quality materials and robust build techniques. Its features include precision-machined components, durable seals, and a compact design that ensures efficient operation and longevity. These attributes contribute to the pump’s reliability and performance in demanding truck applications.

Benefits of Using the 4988324 Hydraulic Pump

Utilizing the 4988324 Hydraulic Pump in hydraulic systems offers several advantages. It provides improved efficiency in fluid transmission, enhances the reliability of hydraulic operations, and ensures consistent performance under varying conditions. These benefits contribute to the overall effectiveness of the truck’s hydraulic system.

Installation and Integration

Proper installation and integration of the 4988324 Hydraulic Pump into truck hydraulic systems are crucial for optimal performance. Compatibility with other components and systems must be ensured during installation. Following manufacturer guidelines for integration helps maintain system integrity and efficiency.

Troubleshooting Common Issues

Common problems associated with hydraulic pumps, including the 4988324, can manifest as leaks, unusual noises, or decreased performance. Identifying symptoms and understanding potential causes are the first steps in troubleshooting. Recommended steps may include inspecting connections, checking fluid levels, and performing necessary repairs or replacements.

Maintenance and Service Recommendations

Regular maintenance of the 4988324 Hydraulic Pump is essential for ensuring optimal performance and longevity. This includes routine inspections, fluid changes, and filter replacements. Adhering to a maintenance schedule helps prevent issues and ensures the pump operates efficiently.

Safety Considerations

When working with hydraulic systems and the 4988324 Hydraulic Pump, observing safety guidelines and precautions is important. This includes proper handling of hydraulic fluids, using appropriate personal protective equipment, and following safety protocols during maintenance tasks to prevent accidents and ensure a safe working environment.

Cummins Corporation Overview

Cummins Inc. is a leading manufacturer in the commercial truck and engine industry, known for its wide range of products and strong reputation. The company’s history of innovation and commitment to quality has established it as a trusted name in the industry, providing reliable solutions for various applications.

Cummins Hydraulic Pump 4988324 Compatibility

The Cummins Hydraulic Pump part number 4988324 is a critical component in several engine configurations, ensuring the smooth operation of hydraulic systems within the engine. This hydraulic pump is designed to work seamlessly with various Cummins engine models, providing essential hydraulic pressure for multiple functions.

Engine Group Compatibility

  • 6B5.9 Series: The 4988324 hydraulic pump is specifically engineered to fit within the 6B5.9 engine series. This engine series is known for its robust performance and reliability, often used in heavy-duty applications. The hydraulic pump in this series ensures that the engine’s hydraulic systems, such as the variable displacement pump and the hydraulic control unit, operate efficiently.

  • Other Cummins Engines: While the primary focus is on the 6B5.9 series, the 4988324 hydraulic pump is also compatible with other Cummins engines that share similar hydraulic system requirements. This ensures that the pump can be used across multiple engine models, providing a versatile solution for maintaining hydraulic functionality.

The hydraulic pump’s design allows it to integrate smoothly with the engine’s hydraulic system, ensuring optimal performance and longevity. Its compatibility with various engine models highlights its importance in maintaining the overall efficiency and reliability of the engine.

Role of Part 4988324 Hydraulic Pump in Engine Systems

The hydraulic pump, specifically part 4988324, is integral to the functionality of various engine systems. It operates by generating the necessary hydraulic pressure to drive multiple components within the engine.

Integration with Engine Components

  1. Fuel System: The hydraulic pump assists in maintaining consistent fuel pressure, ensuring that the fuel injectors deliver the precise amount of fuel required for combustion. This results in optimized engine performance and fuel efficiency.

  2. Power Steering System: In engines equipped with power steering, the hydraulic pump provides the necessary pressure to operate the steering mechanism. This allows for easier maneuverability and reduces the physical effort required by the driver.

  3. Brake System: Certain brake systems utilize hydraulic pressure to engage the braking components. The hydraulic pump ensures that the brake system operates smoothly and reliably, enhancing overall vehicle safety.

  4. Transmission System: In automatic transmissions, the hydraulic pump plays a role in shifting gears by providing the pressure needed to operate the transmission’s hydraulic control system. This ensures seamless gear changes and efficient power transfer.

  5. Auxiliary Systems: The hydraulic pump also supports various auxiliary systems within the engine, such as air conditioning compressors and other hydraulic actuators. These systems rely on consistent hydraulic pressure to function correctly, contributing to the overall comfort and performance of the vehicle.

By generating and maintaining hydraulic pressure, part 4988324 ensures that these engine systems operate efficiently and reliably. Its role is fundamental in enhancing the performance, safety, and comfort of the vehicle.

Conclusion

The Cummins 4988324 Hydraulic Pump is a vital component in the hydraulic systems of commercial trucks and various Cummins engines. Its role in generating and maintaining hydraulic pressure ensures the efficient operation of critical engine systems, including the fuel, power steering, brake, transmission, and auxiliary systems. Proper installation, maintenance, and adherence to safety guidelines are essential for maximizing the performance and longevity of this Cummins part. Cummins Inc.’s reputation for quality and innovation underscores the reliability and effectiveness of the 4988324 Hydraulic Pump in demanding applications.


  1. Xin, Q. (2011). Diesel Engine System Design. Woodhead Publishing Limited.

  2. Maclaurin, B. (2018). High Speed Off-Road Vehicles. Wiley.

  3. ElGindy, M., & ElSayegh, Z. (2023). Road and Off-Road Vehicle Dynamics. Springer Nature.

SPECIFICATIONS

Package Dimensions
14.5 x 14.5 x 19.0 in
Weight
5.97 lbs
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.