4963988
Terminal Block
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$14.95 $17.79

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 4963988 Terminal Block is a vital component in the electrical systems of commercial trucks. It functions as a junction point for multiple electrical connections, ensuring the efficient distribution and management of electrical power within the vehicle. This part is essential for the reliable operation of various electrical systems and components.

Basic Concepts of Terminal Blocks

Terminal blocks are devices used in electrical systems to connect wires and circuits securely and systematically. They facilitate easy modifications and maintenance, helping to prevent short circuits and ensuring stable and reliable electrical connections 1.

Purpose of the 4963988 Terminal Block

The Cummins 4963988 Terminal Block plays a significant role in the operation of a truck by managing and distributing electrical power. It allows for the connection of various electrical components and systems, ensuring that power is efficiently routed where it is needed. This component helps maintain the integrity of the electrical system by providing a centralized point for connections.

Key Features

The Cummins 4963988 Terminal Block is characterized by several key features that enhance its performance. Its design includes multiple connection points, allowing for the integration of various wires and circuits. The materials used in its construction are chosen for their durability and resistance to electrical and environmental factors. Additionally, the terminal block may feature unique characteristics such as corrosion-resistant coatings or enhanced insulation to improve its functionality 2.

Benefits of Using the 4963988 Terminal Block

The use of the Cummins 4963988 Terminal Block offers several advantages. It contributes to improved electrical efficiency by ensuring secure and reliable connections. The design of the terminal block enhances the reliability of the electrical system, reducing the likelihood of failures or malfunctions. Furthermore, its construction facilitates ease of maintenance, allowing for quick and straightforward modifications or repairs.

Installation Process

Installing the Cummins 4963988 Terminal Block involves several steps to ensure proper integration into the truck’s electrical system. Begin by identifying the location where the terminal block will be mounted. Use the appropriate tools to secure the block in place, ensuring it is firmly attached. Connect the wires to the designated terminals, following the manufacturer’s guidelines for polarity and sequence. Finally, verify all connections are secure and test the system to confirm proper operation.

Troubleshooting Common Issues

Common problems with terminal blocks may include loose connections, corrosion, or damaged terminals. To address these issues, begin by inspecting all connections for tightness and signs of corrosion. Clean any affected areas with a suitable cleaner and re-tighten connections as necessary. If terminals are damaged, consider replacing them to ensure reliable operation. Regular inspections and maintenance can help prevent many common issues 3.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins 4963988 Terminal Block, regular maintenance is recommended. Inspect the terminal block periodically for signs of wear, corrosion, or loose connections. Clean the block and terminals as needed to remove any buildup that could affect performance. Additionally, ensure that all connections are tight and secure, and address any issues promptly to maintain the integrity of the electrical system.

Safety Considerations

When working with terminal blocks, it is important to follow safety guidelines to prevent electrical hazards and ensure personal safety. Always disconnect the power source before beginning any work on the electrical system. Use insulated tools to avoid accidental contact with live wires. Wear appropriate personal protective equipment, such as gloves and safety glasses, to protect against electrical shocks and debris. Additionally, ensure that all work is performed in a well-ventilated area to avoid the buildup of hazardous fumes.

Cummins Engine Terminal Block 4963988 Compatibility

The Cummins Terminal Block part number 4963988 is designed to fit seamlessly into the following engines:

  • QSK19 CM850 MCRS
  • QSK50 CM2150 K107
  • QSK50 CM2150 MCRS
  • QSK60 CM850 MCRS

When installed, the terminal block serves as a junction point for multiple electrical connections, ensuring efficient and reliable power distribution. It is engineered to handle the specific electrical demands of these engines, providing a robust interface for various electrical components.

Role of Part 4963988 Terminal Block in Engine Systems

The 4963988 Terminal Block is an essential component in the electrical architecture of engine systems, facilitating the connection and distribution of electrical signals and power among various components.

  • Instrument Cabinet: The terminal block serves as a central hub where wires from different instruments converge, ensuring that signals from sensors and controls are accurately transmitted to the monitoring systems.
  • Instrument Panel: It integrates various gauges and indicators, ensuring that electrical signals from the engine and other systems are correctly routed to the display units.
  • Junction Box Panel: The terminal block manages the complex web of electrical connections, maintaining a tidy and efficient distribution of power and signals.
  • Panel Setup: It ensures that all components are interconnected seamlessly, vital for the coherent operation of the engine system.
  • Engine Instrument Systems: The terminal block connects sensors that measure parameters like temperature, pressure, and RPM, ensuring that these critical measurements are accurately conveyed to the engine monitoring system.
  • Engine Monitoring System: It facilitates the collection and distribution of data from multiple sources, enabling comprehensive oversight of engine health and performance.

Conclusion

The Cummins 4963988 Terminal Block is a critical component in the electrical systems of commercial trucks. Its role in managing and distributing electrical power ensures the reliable operation of various electrical systems and components. With its durable construction, corrosion-resistant features, and ease of maintenance, this part contributes to the overall efficiency and reliability of the vehicle’s electrical system.


  1. Livesey, A. (2000). The Repair of Vehicle Bodies. Elsevier.

  2. Martyr, A.J. (2007). Engine Testing: Theory and Practice: Third Edition. SAE International.

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

SPECIFICATIONS

Notes
Item Not Shown In Art.
Package Dimensions
2.8 x 2.5 x 1.75 in
Weight
0.05 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.