3709774
Lockplate
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$6.49 $7.72

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

The Cummins 3709774 Lockplate is a component designed for use in heavy-duty truck maintenance. Its purpose is to secure fasteners and prevent them from loosening due to vibrations or other dynamic forces encountered during operation. This part contributes to the overall reliability and safety of the vehicle by ensuring that critical components remain firmly in place.

Basic Concepts of Lockplates

Lockplates, also known as lock washers, are mechanical devices used to prevent fasteners from becoming loose. They function by introducing tension or deformation to the fastener, which creates additional friction and resistance against loosening forces. This enhances the integrity and performance of the components they are applied to, ensuring that connections remain secure under various operating conditions 1.

Purpose of the 3709774 Lockplate

The Cummins 3709774 Lockplate plays a specific role in the operation of a truck by securing fasteners in place. It is applied to prevent loosening due to vibration, thermal expansion, or other dynamic forces that can occur during the vehicle’s operation. By maintaining the integrity of the fastened connections, this lockplate helps ensure the safe and efficient functioning of the truck’s components.

Key Features

The Cummins 3709774 Lockplate is characterized by several primary features that enhance its functionality and durability. It is typically made from high-strength materials to withstand the rigors of heavy-duty applications. The design includes specific attributes such as a split-lock configuration, which provides a spring-like action to maintain tension on the fastener. Additionally, it may feature a unique tooth pattern or serrations to further enhance grip and resistance to loosening 2.

Benefits of Using the 3709774 Lockplate

Incorporating the Cummins 3709774 Lockplate into truck maintenance routines offers several advantages. It contributes to improved safety by ensuring that critical fasteners remain secure, reducing the risk of component failure. Enhanced component longevity is another benefit, as the lockplate helps prevent wear and damage caused by loose fasteners. Additionally, the use of this lockplate can lead to reduced maintenance frequency, as it minimizes the need for re-tightening or replacement of fasteners.

Installation Guidelines

Proper installation of the Cummins 3709774 Lockplate is crucial for its effective function. To install, place the lockplate under the head of the bolt or nut, ensuring that the split portion of the plate is oriented correctly to engage with the fastener. Tighten the fastener to the manufacturer’s specified torque, taking care not to over-tighten, which could damage the lockplate or the fastener. It is also important to avoid common pitfalls such as installing the lockplate upside down or using it on corroded or damaged fasteners.

Troubleshooting Common Issues

Frequent problems associated with lockplates include corrosion and improper installation. Corrosion can weaken the lockplate and reduce its effectiveness, while improper installation can lead to inadequate fastening security. To address these issues, regular inspection for signs of corrosion is recommended, along with proper cleaning and application of corrosion-resistant coatings if necessary. Ensuring correct installation practices, as outlined in the guidelines, can also help prevent common problems.

Maintenance Tips

To ensure optimal performance and longevity of the Cummins 3709774 Lockplate, regular inspection and maintenance are recommended. This includes cleaning the lockplate and associated fasteners to remove dirt and debris, checking for signs of wear or damage, and replacing the lockplate if it shows signs of fatigue or failure. Adhering to these maintenance practices will help maintain the integrity of the fastened connections and contribute to the overall reliability of the truck.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a history spanning over a century, Cummins has established a strong reputation in the automotive and heavy-duty truck industries for producing high-quality, reliable, and innovative products. The company’s extensive product range and commitment to excellence make it a trusted name in the field of power generation and engine technology 3.

Cummins Lockplate 3709774 Compatibility with Engine Models

The Cummins Lockplate 3709774 is a critical component designed to ensure secure fastening and stability in various engine configurations. This part is engineered to fit seamlessly within the operational framework of several Cummins engine models, providing essential support and integrity to the engine’s assembly.

L10 MECHANICAL Engines

In the L10 MECHANICAL engines, the Lockplate 3709774 plays a pivotal role in maintaining the structural integrity of the engine. It is specifically designed to interface with the engine’s mounting and fastening systems, ensuring that all components remain securely in place during operation. This lockplate is integral to the engine’s performance, as it helps to distribute mechanical stresses evenly and prevent misalignment, which could lead to operational inefficiencies or failures.

The compatibility of the Lockplate 3709774 with the L10 MECHANICAL engines underscores its importance in the overall engine design. By providing a reliable locking mechanism, this part contributes to the longevity and reliability of the engine, making it a crucial element in the engine’s assembly and maintenance.

Role of Part 3709774 Lockplate in Engine Systems

In the intricate world of engine systems, the Part 3709774 Lockplate serves a significant function, particularly when integrated with various turbocharger components and performance enhancement parts. This lockplate is instrumental in securing and maintaining the integrity of connections within the turbocharger and its associated systems.

When dealing with an Aftermarket Turbocharger, the lockplate ensures that the turbocharger’s components, such as the turbine and compressor wheels, are held firmly in place. This is essential for optimal performance and durability, especially in high-stress environments.

In the context of Dina Mexico Conv systems, the lockplate plays a role in securing the turbocharger to the engine, ensuring that all connections are tight and secure. This is particularly important in maintaining the efficiency and reliability of the turbocharger under varying operational conditions.

The Fastener & Finishing Kit often includes components like the lockplate to provide a complete solution for securing turbocharger parts. The lockplate, in this case, works in conjunction with other fasteners to ensure that all elements are correctly aligned and fastened, reducing the risk of component failure.

For H2 Turbocharger and H2D Turbocharger systems, the lockplate is used to secure the turbocharger’s internal components, such as the shaft and bearings. This is vital for maintaining the precise alignment and balance required for these high-performance turbochargers.

In an Overhaul Kit, the lockplate is a key component that ensures all refurbished or replaced parts are securely fastened. This is essential for the longevity and performance of the turbocharger post-overhaul.

When integrating with Performance Parts, such as those from AFC or non-AFC sources, the lockplate helps in securing enhanced components, ensuring they function as intended under increased stress and performance demands.

The Pre-set Turbine Housing Kit benefits from the lockplate by ensuring that the turbine housing is securely attached to the turbocharger, maintaining the aerodynamic efficiency and overall performance of the system.

In Turbocharger Actuator Kits and Turbocharger and Connection systems, the lockplate is used to secure the actuator to the turbocharger, ensuring smooth and reliable operation of the variable geometry turbochargers.

For Turbocharger H2C and Turbocharger Kit installations, the lockplate is essential in maintaining the structural integrity of the turbocharger, ensuring that all components work in unison for peak performance.

Lastly, in Turbocharger Repair Kits, the lockplate is used to re-secure components after repair, ensuring that the turbocharger returns to service with the same level of reliability and performance as before the repair.

Conclusion

The Cummins 3709774 Lockplate is a vital component in heavy-duty truck maintenance, ensuring the secure fastening of critical components and contributing to the overall safety and reliability of the vehicle. Its proper installation, regular maintenance, and compatibility with various engine models underscore its importance in the automotive industry.


  1. Hu, H., Baseley, S. J., & Song, X. (2021). Advanced Hybrid Powertrains for Commercial Vehicles Second Edition. SAE International.

  2. Hilgers, M. (2023). Alternative Powertrains and Extensions to the Conventional Powertrain. Springer Nature.

  3. Sobey, E. (2009). A Field Guide to Automotive Technology. Chicago Review Press.

SPECIFICATIONS

Service Part Topic
89T10-2
Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
2.875 x 0.875 x 0.125 in
Weight
0.01 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.