3078252
Leaf Spring
Cummins®

AVAILABLE

Cummins®

1 is currently available

Ships within 2-4 business days

$23.95 $28.50

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 3078252 Leaf Spring is a critical component for commercial trucks, integral to the suspension system. It enhances the vehicle’s load-bearing capacity, stability, and ride comfort. Understanding its function and significance is essential for maintaining optimal truck performance and safety in commercial operations 1.

Basic Concepts of Leaf Springs

Leaf springs, a longstanding suspension component, consist of multiple metal layers, or leaves, stacked and clamped together. They flex to absorb impacts from bumps or uneven terrain, providing a smoother ride. Over time, advancements in materials and design have improved their durability and performance 3.

Purpose and Role of the 3078252 Leaf Spring

This Cummins part is engineered to support the weight of commercial trucks, ensuring stability and comfort under various load conditions. It distributes the vehicle’s weight evenly across the axle, maintaining traction and control. It also minimizes the impact of road irregularities, contributing to overall ride quality 1.

Key Features

The 3078252 is characterized by its robust material composition, typically high-strength steel, which provides the necessary durability for heavy-duty applications. Its design includes multiple leaves of varying lengths, offering flexibility and strength. Specific curvatures or reinforcements may enhance its performance under heavy loads 3.

Benefits of Using the 3078252 Leaf Spring

Utilizing this part offers several advantages. Its durable construction ensures longevity under demanding conditions. It is designed to perform well under heavy loads, making it suitable for commercial truck applications. Its compatibility with various truck models allows for versatile use across different fleets 1.

Installation and Integration

Proper installation of the 3078252 is vital for optimal performance. It should be integrated into the truck’s suspension system according to manufacturer guidelines, which may include specific torque settings for clamps and alignment checks to ensure even load distribution. Attention to these details during installation can prevent issues down the line 2.

Maintenance and Troubleshooting

To maintain the performance and longevity of the 3078252, regular inspections are recommended. This includes checking for signs of wear, corrosion, or damage to the leaves and clamps. Common issues may include uneven wear or clamping, which can affect the spring’s performance. Addressing these issues promptly can help maintain the spring’s effectiveness and the truck’s overall performance 3.

Cummins: A Brief Overview

Cummins Inc. is a well-established manufacturer in the commercial truck industry, known for its wide range of products, including engines, filtration systems, and components like the 3078252. With a history of innovation and quality, Cummins has built a reputation for producing reliable and high-performance parts that meet the demanding needs of commercial truck operators 2.

Compatibility with Cummins Engines

The Leaf Spring part number 3078252, manufactured by Cummins, is designed to fit seamlessly with several of their engine models. This part is crucial for maintaining the structural integrity and operational efficiency of the engines. Here’s how it integrates with the specified engines:

N14 CELECT and N14 MECHANICAL Engines

The Leaf Spring part 3078252 is compatible with both the N14 CELECT and N14 MECHANICAL engines. These engines are known for their robust performance and reliability, often used in heavy-duty applications. The leaf spring ensures that the engine’s components are properly aligned and supported, reducing wear and tear and enhancing the overall lifespan of the engine 2.

NH/NT 855 Engines

Similarly, the Leaf Spring part 3078252 is also suitable for the NH/NT 855 engines. These engines are part of the Cummins lineup that is designed for durability and efficiency in demanding environments. The leaf spring plays a vital role in maintaining the alignment and stability of the engine, ensuring that it operates smoothly and efficiently 2.

Role of Part 3078252 Leaf Spring in Engine Systems

The part 3078252 Leaf Spring is an essential component in various engine systems, contributing to the overall functionality and performance of these systems.

In the brake system, the Leaf Spring works in conjunction with the brake components to ensure efficient braking performance. It helps in maintaining the structural integrity of the brake assembly, absorbing shocks and vibrations that occur during braking. This is particularly important in high-stress environments where consistent and reliable braking is required 3.

When integrated into an engine brake kit, the Leaf Spring assists in managing the forces generated by the engine braking mechanism. It helps in stabilizing the components within the kit, ensuring that the engine brake operates smoothly and effectively. This is vital for engines that require precise control over braking forces, such as those found in heavy-duty vehicles 2.

In the context of a Cummins engine brake kit, the Leaf Spring plays a role in enhancing the durability and reliability of the brake system. By providing additional support and stability, it helps in prolonging the lifespan of the brake components and ensuring consistent performance over time 2.

For the clamping plate kit, the Leaf Spring is used to maintain proper alignment and pressure distribution. This is important for ensuring that the clamping plates function correctly, which is essential for the overall efficiency of the braking system 3.

In rocker housing applications, the Leaf Spring helps in absorbing vibrations and maintaining the structural integrity of the housing. This is particularly important in high-performance engines where the rocker housing is subjected to significant stress and vibration 3.

Overall, the part 3078252 Leaf Spring is a versatile component that enhances the performance and reliability of various engine systems by providing necessary support, stability, and shock absorption.

Conclusion

The Cummins 3078252 Leaf Spring is a vital component for commercial trucks, offering enhanced load-bearing capacity, stability, and ride comfort. Its robust design and compatibility with various Cummins engines make it a reliable choice for heavy-duty applications. Regular maintenance and proper installation are key to ensuring its longevity and optimal performance.


  1. Happian-Smith, Julian. An Introduction to Modern Vehicle Design. Butterworth-Heinemann, 2002.

  2. Cummins Inc. Owners Manual for X12 CM2670 X121B. Bulletin Number 5504453.

  3. Hilgers, Michael. Chassis and Axles. Springer Vieweg, 2023.

SPECIFICATIONS

Service Part Topic
92T20-1
Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
1.5 x 1.5 x 1.0 in
Weight
0.02 lb
* 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.