3967444
Cylinder Head
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$6,099.95 $7,258.94

Oversize Item

This is an oversize product. Additional shipping fees may apply.

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 3967444 Cylinder Head is a significant component in heavy-duty truck engines, contributing to engine performance and efficiency. This part is integral to the operation of Cummins engines, providing a foundation for reliable and powerful engine performance.

Basic Concepts of a Cylinder Head

A cylinder head is a part of an internal combustion engine, sealing the top of the engine’s cylinders and allowing for the intake and exhaust of gases. It houses the valves, which open and close to allow air and fuel into the combustion chamber and to release exhaust gases. The cylinder head also contains passages for coolant and oil, which help regulate engine temperature and lubricate moving parts. It interacts closely with the engine block, pistons, and other components to facilitate the combustion process 1.

Purpose of the Cummins 3967444 Cylinder Head

This part plays a specific role in the operation of a truck engine by contributing to combustion efficiency and power output. It is designed to work in harmony with the engine’s other components to ensure optimal performance. The cylinder head’s design allows for precise control over the intake and exhaust processes, which are vital for efficient combustion and power generation.

Key Features

This Cummins part is characterized by its robust design and construction. It is made from high-quality materials that ensure durability and performance. The cylinder head features a specific valve configuration that optimizes airflow into and out of the combustion chamber. Additionally, it may include unique design elements that enhance its performance and longevity, such as advanced cooling channels or reinforced valve seats.

Benefits

The Cummins 3967444 Cylinder Head offers several advantages, including improved fuel efficiency, enhanced engine reliability, and increased power output. Its design contributes to more efficient combustion, which can lead to better fuel economy. The robust construction ensures that the cylinder head can withstand the rigors of heavy-duty truck operation, providing reliable performance over time. Additionally, the optimized airflow and combustion efficiency can result in increased power output from the engine.

Installation and Compatibility

Proper installation of this part is important for ensuring a successful fit within the engine assembly. This may involve specific preparations or considerations to ensure that the cylinder head is correctly aligned and sealed. It is important to follow manufacturer guidelines for installation to avoid potential issues and ensure optimal performance.

Performance and Efficiency

This part contributes to overall engine performance and efficiency through its design features. These features optimize combustion and can reduce emissions, leading to a more environmentally friendly and efficient engine operation. The cylinder head’s role in managing the intake and exhaust processes is vital for maintaining engine performance under various operating conditions.

Maintenance and Troubleshooting

Maintaining the Cummins 3967444 Cylinder Head is important for ensuring longevity and optimal performance. Regular inspection intervals, cleaning procedures, and addressing common issues can help prevent problems and extend the life of the cylinder head. Troubleshooting tips may include checking for proper valve operation, ensuring adequate cooling, and monitoring for signs of wear or damage.

Cummins Corporation Overview

Cummins Inc. is a well-established company with a strong reputation in the automotive and heavy-duty truck industries. With a history of innovation and quality, Cummins offers a wide range of products designed to meet the needs of various applications. The company’s commitment to excellence is reflected in its product offerings, which include engines, filtration systems, and other components that contribute to the performance and reliability of vehicles.

Cummins Cylinder Head 3967444 Compatibility

The Cummins Cylinder Head part number 3967444 is specifically designed to fit certain Cummins engines, ensuring optimal performance and reliability. This part is integral to the engine’s operation, as it houses critical components such as the valves, ports, and combustion chambers.

Compatible Engines

  • 4B3.9

The 3967444 cylinder head is engineered to seamlessly integrate with the 4B3.9 engine, providing a perfect fit and ensuring that all mechanical and thermal stresses are effectively managed. This compatibility is crucial for maintaining the engine’s efficiency and longevity.

Grouping of Compatible Engines

When considering the use of the Cummins Cylinder Head 3967444, it is essential to understand its application across various engine models. While the 4B3.9 is a notable example, this part’s design and specifications make it suitable for other Cummins engines within the same series or those with similar engineering requirements. Ensuring the correct fitment is vital for the engine’s overall performance and durability.

Role of Part 3967444 Cylinder Head in Engine Systems

Part 3967444, the cylinder head, is a fundamental component in the operation of an engine system. It sits atop the engine block and plays a significant role in the combustion process. The cylinder head houses several key elements that contribute to the engine’s performance and efficiency.

Combustion Chamber

The cylinder head contains the combustion chamber where fuel is ignited. This chamber is designed to optimize the combustion process, ensuring that the air-fuel mixture burns efficiently to produce maximum power with minimal emissions.

Valves and Valve Seats

Integral to the cylinder head are the intake and exhaust valves. These valves open and close to allow the intake of air and fuel mixture and the expulsion of exhaust gases. The valve seats within the cylinder head ensure a tight seal, preventing leaks that could reduce engine efficiency.

Spark Plugs

In gasoline engines, the cylinder head includes provisions for spark plugs. These plugs ignite the compressed air-fuel mixture, initiating the combustion process. Proper placement and condition of the spark plugs are essential for consistent engine performance.

Fuel Injectors

In fuel-injected engines, the cylinder head may house fuel injectors. These injectors spray a precise amount of fuel into the combustion chamber, contributing to efficient combustion and reduced emissions.

Cooling and Lubrication Passages

The cylinder head is equipped with passages for coolant and lubrication. These passages help manage the temperature of the cylinder head and reduce friction between moving parts, enhancing the longevity and reliability of the engine.

Gaskets and Seals

Between the cylinder head and the engine block, gaskets and seals are employed to ensure a secure fit. These components prevent leaks of coolant, oil, and combustion gases, maintaining the integrity of the engine system.

Conclusion

In summary, the 3967444 is a multifaceted component that integrates several critical functions within the engine system. Its design and condition directly influence the engine’s performance, efficiency, and durability.


  1. Naunheimer, H., Bertsche, B., Ryborz, J., & Novak, W. (2011). Automotive Transmissions: Fundamentals, Selection, Design and Application. Springer Vieweg.

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SPECIFICATIONS

Recon Equivalent
3967444RX
Package Dimensions
37.0 x 34.0 x 11.0 in
Weight
90 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.