3967459
Cylinder Head
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$6,499.95 $7,734.94

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

Introduction

The Cummins 3967459 Cylinder Head is a critical component in heavy-duty truck engines, enhancing overall engine performance. This part is designed to improve the efficiency and power output of Cummins engines, playing a significant role in the engine’s operation.

Basic Concepts of a Cylinder Head

A cylinder head is an essential part of an internal combustion engine, sealing the top of the engine cylinders and allowing for the intake and exhaust of gases. It houses the valves, which control the flow of air and fuel into the cylinders and the expulsion of exhaust gases. The cylinder head also contains passages for coolant and oil, which help manage engine temperature and lubrication. It interacts closely with the engine block, pistons, and other components to ensure smooth and efficient engine operation 1.

Purpose of the Cummins 3967459 Cylinder Head

The Cummins 3967459 Cylinder Head facilitates efficient combustion and contributes to power output in truck engines. It is engineered to optimize the airflow into and out of the cylinders, enhancing combustion efficiency. This leads to better fuel economy and increased engine power. The design of this cylinder head also helps in maintaining optimal engine temperatures, which is important for longevity and performance 2.

Key Features

The Cummins 3967459 Cylinder Head incorporates several notable design elements and technological advancements. It is constructed from high-quality materials that offer durability and resistance to thermal stress. The valve configuration is optimized for better airflow, and the head includes advanced cooling passages to manage heat effectively. These features contribute to the overall reliability and performance of the engine.

Benefits

The advantages of the Cummins 3967459 Cylinder Head include improved engine performance, enhanced durability, and greater reliability. Compared to alternative cylinder head designs, this component offers better combustion efficiency, which translates to increased power output and fuel efficiency. Its robust construction ensures it can withstand the rigors of heavy-duty truck operation, providing long-lasting performance.

Installation and Compatibility

Proper installation of the Cummins 3967459 Cylinder Head is vital for ensuring optimal performance. This involves adhering to specific torque specifications and alignment requirements to prevent issues such as leaks or improper sealing. The cylinder head is compatible with certain Cummins engine models and configurations, ensuring a precise fit and function within the engine system 3.

Maintenance and Troubleshooting

Routine maintenance practices are essential for ensuring the optimal performance and longevity of the Cummins 3967459 Cylinder Head. This includes regular inspections for wear and tear, cleaning of the valve seats, and checking the integrity of the cooling passages. Common issues that may arise include valve seat wear or gasket leaks, and recommended troubleshooting steps involve thorough inspections and timely replacements of worn components.

Performance Enhancements

There are potential modifications or upgrades that can be made to the Cummins 3967459 Cylinder Head to further enhance engine performance. These may include porting and polishing the intake and exhaust ports to improve airflow, or installing aftermarket components such as high-performance valves. These enhancements can lead to increased power output and better overall engine efficiency.

Cummins Corporation

Cummins Inc., the manufacturer of the 3967459 Cylinder Head, has a long-standing reputation in the automotive industry for innovation and quality. Founded in 1919, Cummins has been a leader in engine technology, consistently pushing the boundaries of what is possible in engine design and performance. The company’s commitment to quality is evident in the robust and reliable components it produces, including the Cummins 3967459 Cylinder Head.

Compatibility with Cummins Engines

The Cummins Cylinder Head part number 3967459 is designed to fit seamlessly with a range of engines, ensuring optimal performance and reliability. This part is engineered to meet the stringent standards set by Cummins, a leader in the manufacturing of high-quality engine components.

Compatibility with 6B5.9 Engines

The 3967459 cylinder head is specifically engineered to fit the 6B5.9 engine. This compatibility ensures that the cylinder head integrates smoothly with the engine’s architecture, providing a robust and efficient sealing mechanism. The design of this cylinder head is tailored to handle the unique demands of the 6B5.9 engine, ensuring that it performs at peak efficiency under various operating conditions.

Grouping of Compatible Engines

While the primary focus here is on the 6B5.9 engine, it is important to note that the 3967459 cylinder head is also compatible with other Cummins engines within the same family. This grouping allows for easier maintenance and repair, as technicians can use the same part across multiple engine models, reducing inventory costs and simplifying the repair process.

Ensuring Optimal Performance

By choosing the Cummins Cylinder Head part number 3967459, users can be confident in the part’s ability to deliver reliable performance. This part is crafted from high-quality materials and undergoes rigorous testing to ensure it meets the demanding specifications of Cummins engines. The precision engineering of this cylinder head ensures that it will fit perfectly with the 6B5.9 engine, providing a secure and efficient seal that is critical for engine performance.

Understanding the Role of Part 3967459 Cylinder Head in Engine Systems

The part 3967459 Cylinder Head is an integral component within the engine system, facilitating several key functions that contribute to the overall performance and efficiency of the engine.

Combustion Chamber Integration

The cylinder head houses the combustion chamber, where the air-fuel mixture is ignited. This process generates the power needed to drive the pistons. The design and material of the cylinder head, including part 3967459, are engineered to withstand high temperatures and pressures produced during combustion.

Valve Operation

Part 3967459 Cylinder Head incorporates the intake and exhaust valves, which are essential for the engine’s breathing process. The intake valves allow the air-fuel mixture to enter the combustion chamber, while the exhaust valves release the spent gases after combustion. The precise timing and operation of these valves are controlled by the camshaft, which interacts with the cylinder head.

Cooling System Interface

The cylinder head, including part 3967459, interfaces with the engine’s cooling system. Coolant passages within the head help manage the temperature of the combustion chamber and valves, preventing overheating and ensuring optimal engine performance.

Fuel Injection System Compatibility

In engines equipped with direct fuel injection, the cylinder head often includes fuel injectors. Part 3967459 Cylinder Head is designed to accommodate these injectors, allowing for precise fuel delivery directly into the combustion chamber. This enhances fuel efficiency and power output.

Emission Control

Modern cylinder heads, such as part 3967459, are designed with features that aid in emission control. This includes provisions for exhaust gas recirculation (EGR) valves and catalytic converter integration, which help reduce harmful emissions and comply with environmental regulations.

Structural Support

The cylinder head provides structural support for various engine components. It secures the spark plugs (in spark-ignition engines) and may include mounting points for the camshaft(s). The robustness of part 3967459 ensures that these components remain firmly in place under operating conditions.

Sealing and Gasket Integration

Effective sealing is vital for engine performance, and the cylinder head plays a significant role in this aspect. Part 3967459 is designed to work with head gaskets, which seal the combustion chamber and prevent leaks between the head and the engine block. Proper sealing ensures that compression is maintained, and coolant or oil does not mix with the combustion process.

Conclusion

In summary, part 3967459 Cylinder Head is a multifaceted component that significantly influences the engine’s combustion efficiency, valve operation, cooling, fuel injection, emission control, structural integrity, and sealing. Its design and functionality are tailored to enhance the engine’s overall performance and reliability.


  1. R. Matthew Brach, SAE International’s Dictionary of Vehicle Accident Reconstruction and Automotive Safety, SAE Books, 2023.

  2. Michael Hilgers, The Drivers Cab, Springer Vieweg, 2022.

  3. Cummins Inc., Fault Code Troubleshooting Manual, Bulletin Number 5411265, B6.7 CM2350 B148B.

RELATED PARTS

SPECIFICATIONS

Recon Equivalent
3967459RX
Package Dimensions
34.0 x 15.125 x 9.0 in
Weight
120 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.