4062834
Radiator Cap
Cummins®

AVAILABLE

Cummins®

3 are currently available

Ships within 2-4 business days

$91.95 $109.42

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 4062834 Radiator Cap is a component designed for use in the cooling systems of commercial trucks. Its purpose is to maintain the optimal pressure and temperature within the cooling system, ensuring efficient engine operation. This part plays a role in the overall performance and longevity of the truck’s engine by regulating the cooling system’s pressure and temperature.

Basic Concepts of Radiator Caps

Radiator caps serve a fundamental role in the cooling systems of vehicles by maintaining the necessary pressure and temperature levels. By keeping the coolant under pressure, these caps raise the boiling point of the coolant, which allows the engine to operate at higher temperatures without the risk of overheating 1. This pressure regulation also helps in preventing the formation of air pockets within the cooling system, which can lead to inefficient cooling and potential engine damage.

Purpose and Function of the Cummins 4062834 Radiator Cap

This Cummins part operates by regulating the pressure within the truck’s cooling system. It is designed to open at a specific pressure, allowing excess coolant to flow into an overflow tank, thus preventing the system from over-pressurizing. When the pressure decreases, the cap seals again, allowing the coolant to re-enter the system. This process helps maintain a consistent temperature and pressure, which is vital for the efficient operation of the engine.

Key Features

The 4062834 Radiator Cap is constructed from durable materials to withstand the harsh conditions of commercial truck operations. It features a precise pressure rating that ensures optimal performance within the cooling system. The design includes elements such as a robust spring mechanism and a sealing gasket, which contribute to its reliability and longevity. These features enhance the cap’s ability to maintain pressure and temperature, ensuring the cooling system functions effectively.

Benefits of Using the Cummins 4062834 Radiator Cap

Utilizing this part offers several advantages. It contributes to improved engine efficiency by ensuring the cooling system operates within the desired pressure and temperature range. This can lead to prolonged component lifespan, as the engine is less likely to suffer from overheating or coolant system failures. Additionally, the enhanced performance of the cooling system can result in better overall truck operation, reducing the likelihood of unexpected downtime.

Installation and Replacement Guidelines

To install or replace the 4062834 Radiator Cap, begin by ensuring the engine is cool to avoid burns from hot coolant. Use the appropriate tools to carefully remove the old cap, taking care not to damage the radiator neck. Inspect the sealing surface for any debris or damage. Install the new cap by hand, ensuring it is seated properly, and then tighten it to the manufacturer’s specified torque. It is important to follow safety precautions and refer to the truck’s service manual for detailed instructions.

Troubleshooting Common Issues

Common issues with radiator caps include leaks or pressure loss, which can lead to inefficient cooling and potential engine damage. To diagnose these problems, check for signs of coolant loss, unusual engine temperatures, or visible damage to the cap. If a leak is suspected, inspect the cap’s sealing gasket for wear or damage. Pressure loss can be tested using a cooling system pressure tester. Recommended solutions may include replacing the cap or repairing any damaged components within the cooling system.

Maintenance Tips

To ensure the optimal performance and longevity of the 4062834 Radiator Cap, regular maintenance is recommended. Inspect the cap during routine service intervals for signs of wear, corrosion, or damage. Clean the cap and its sealing surface to remove any debris that could affect its operation. Following these maintenance practices can help prevent issues within the cooling system and ensure the radiator cap continues to function effectively.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a strong reputation within the commercial truck industry for producing reliable and high-performance components. Their product offerings include a wide range of engines, powertrain, and aftermarket parts, all designed to meet the demanding requirements of commercial applications.

Radiator Cap 4062834 Compatibility with Cummins Engines

The Cummins Radiator Cap part number 4062834 is designed to fit seamlessly with several of Cummins’ engine models, ensuring optimal cooling system performance. This radiator cap is engineered to maintain the appropriate pressure within the cooling system, preventing overheating and ensuring efficient engine operation.

G8.3 Engines

The G8.3 engines benefit from the precise fit and functionality of the 4062834 radiator cap. This cap ensures that the cooling system operates at the correct pressure, which is crucial for maintaining engine temperature and preventing potential damage from overheating.

G855 Engines

Similarly, the G855 engines are compatible with the 4062834 radiator cap. This part is designed to fit these engines perfectly, providing a reliable seal that maintains the necessary pressure within the cooling system. The cap’s design ensures that the engine runs smoothly and efficiently, with minimal risk of overheating.

N14 G Engines

The N14 G engines also utilize the 4062834 radiator cap. This cap is specifically engineered to fit these engines, ensuring that the cooling system maintains the correct pressure. The compatibility of this part with the N14 G engines guarantees that the engine’s cooling system functions optimally, contributing to the overall reliability and performance of the engine.

By ensuring a proper fit and function, the 4062834 radiator cap is a vital component for maintaining the cooling systems of these Cummins engines, contributing to their longevity and efficiency.

Conclusion

The 4062834 Radiator Cap is an essential component in maintaining the efficiency and reliability of the engine’s cooling system. This cap is installed on the radiator or expansion tank and plays a significant role in regulating the pressure within the cooling system. By maintaining optimal pressure and temperature, it ensures efficient heat transfer and prevents coolant loss, contributing to the overall performance and longevity of the engine and its associated components.


  1. Pulkrabek, W. W. (2014). Engineering Fundamentals of the Internal Combustion Engine. Pearson Education.

SPECIFICATIONS

Package Dimensions
2.5 x 1.7 x 2.8 in
Weight
0.13 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.