3967458
Cylinder Head
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$3,699.95 $4,402.94

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 3967458 Cylinder Head is a vital component in heavy-duty truck engines, contributing significantly to engine performance. This part is designed to enhance the efficiency and power output of the engine, making it a key element in the overall functionality of heavy-duty vehicles.

Basic Concepts of a Cylinder Head

A cylinder head is a crucial part of an internal combustion engine, serving multiple functions. It covers the cylinders and provides a seal for the pistons, allowing for the compression of the air-fuel mixture. The cylinder head also houses the valves, which control the intake and exhaust of gases, and the spark plugs or fuel injectors, which ignite the mixture. It interacts closely with other engine components, such as the cylinder block, pistons, and camshaft, to ensure smooth and efficient engine operation 1.

Purpose of the Cummins 3967458 Cylinder Head

The Cummins 3967458 Cylinder Head plays a specific role in the operation of a truck engine. It is engineered to optimize combustion efficiency and enhance power output. By providing a precise environment for the combustion process, this cylinder head helps in achieving better fuel efficiency and increased engine performance. Its design allows for improved airflow and better management of the combustion process, contributing to the overall effectiveness of the engine 2.

Key Features

The Cummins 3967458 Cylinder Head boasts several key features that enhance its performance and durability. It is constructed from high-quality materials that offer superior strength and resistance to wear. The design includes advanced valve train components and precise machining to ensure optimal performance. Technological advancements such as improved cooling passages and enhanced sealing mechanisms contribute to its reliability and longevity 3.

Benefits

The Cummins 3967458 Cylinder Head provides numerous benefits to the engine. It contributes to improved engine efficiency by optimizing the combustion process. The design enhances reliability, ensuring consistent performance under various operating conditions. Additionally, it can potentially increase horsepower and torque, providing better overall engine performance.

Installation Process

Installing the Cummins 3967458 Cylinder Head requires careful attention to detail. The process involves several steps, including preparing the engine block, aligning the head with the block, and securing it with the appropriate torque specifications. Necessary tools include a torque wrench, gasket scraper, and feeler gauges. Precautions such as cleaning mating surfaces and inspecting gaskets for damage are crucial. Following best practices ensures proper fitting and function, preventing issues such as leaks or improper sealing.

Common Issues and Troubleshooting

Common issues associated with the Cummins 3967458 Cylinder Head include warping, cracking, and gasket failures. Warping can occur due to excessive heat, while cracking may result from material fatigue or improper installation. Gasket failures often stem from incorrect torque or contamination. Troubleshooting these issues involves visual inspection, pressure testing, and, if necessary, replacement of damaged components. Proper diagnosis and timely intervention can prevent more severe engine problems.

Maintenance Tips

Regular maintenance is key to prolonging the life of the Cummins 3967458 Cylinder Head. Inspection intervals should be adhered to, checking for signs of wear or damage. Cleaning procedures, such as decarbonizing and removing deposits, help maintain optimal performance. Replacement guidelines for worn components, such as valves and gaskets, should be followed to ensure continued reliability. Adhering to these practices contributes to the longevity and efficiency of the cylinder head.

Performance Enhancements

Potential performance enhancements can be achieved with the Cummins 3967458 Cylinder Head. Modifications such as increased airflow through upgraded intake and exhaust systems can further optimize combustion. Integration with aftermarket components, such as high-performance valves or ported heads, can also enhance engine performance. These enhancements can lead to improved horsepower, torque, and overall engine efficiency.

Cummins Overview

Cummins Inc. is a renowned manufacturer in the heavy-duty truck industry, with a rich history of producing high-quality engine components. The company’s product range includes a variety of engines and parts designed for durability and performance. Cummins’ reputation for quality and reliability is well-established, providing confidence in the 3967458 Cylinder Head’s performance and longevity in heavy-duty applications.

Compatibility with Cummins Engines

The Cummins part number 3967458, a Cylinder Head, is designed to fit seamlessly with several of Cummins’ renowned engine models. This part is integral to the performance and longevity of the engines, ensuring optimal combustion and efficiency.

6B5.9 Engines

The 6B5.9 engine, known for its robust build and reliability, utilizes the 3967458 Cylinder Head to maintain its high performance standards. This engine is often found in heavy-duty applications where durability and power are paramount.

QSB5.9 Engines

Similarly, the QSB5.9 engine benefits from the 3967458 Cylinder Head. This engine is a staple in various industries, including agriculture and construction, due to its versatility and efficiency. The cylinder head plays a crucial role in the engine’s ability to deliver consistent power and fuel efficiency.

30 CM550 Engines

The 30 CM550 engine, another robust model in Cummins’ lineup, also incorporates the 3967458 Cylinder Head. This engine is designed for demanding applications, where it needs to perform under heavy loads and varying conditions. The cylinder head’s design ensures that the engine can handle these challenges with ease.

Compatibility and Performance

The 3967458 Cylinder Head is engineered to fit these engines precisely, ensuring a perfect seal and optimal performance. This part is crucial for maintaining the engine’s efficiency and longevity, as it directly impacts the combustion process and overall engine operation.

Installation and Maintenance

When installing the 3967458 Cylinder Head, it is essential to follow the manufacturer’s guidelines to ensure a proper fit and function. Regular maintenance and inspection of this part are also critical to prevent any potential issues and to keep the engine running smoothly.

Role of Part 3967458 Cylinder Head in Engine Systems

The part 3967458 cylinder head is an integral component in the operation of various engine systems. It serves as the upper part of the engine block and houses several key elements that contribute to the engine’s performance and efficiency.

Combustion Chamber

The cylinder head encloses the combustion chamber, where the air-fuel mixture is ignited. This process generates the power needed to drive the pistons downward, converting chemical energy into mechanical energy.

Valves and Valve Mechanisms

Integral to the cylinder head are the intake and exhaust valves. These valves open and close in a precise sequence to allow the intake of air-fuel mixture and the expulsion of exhaust gases. The cylinder head also houses the valve springs, which ensure the valves return to their closed position after each cycle.

Spark Plugs

In gasoline engines, the cylinder head includes mounting points for spark plugs. These components ignite the air-fuel mixture at the optimal moment, ensuring efficient combustion.

Fuel Injectors

In engines equipped with direct fuel injection, the cylinder head may also house the fuel injectors. These injectors deliver fuel directly into the combustion chamber, enhancing fuel efficiency and power output.

Cooling and Lubrication

The cylinder head incorporates passages for coolant and oil. These passages help manage the temperature of the head and provide lubrication to moving parts, such as the valves and camshaft.

Gaskets and Seals

To ensure a proper seal between the cylinder head and the engine block, gaskets are employed. These gaskets prevent leaks of coolant, oil, and combustion gases, maintaining the integrity of the engine’s operation.

Emissions Control

Modern cylinder heads are designed with features that aid in reducing emissions. This includes ports for emissions control systems, such as Exhaust Gas Recirculation (EGR) and variable valve timing mechanisms.

Conclusion

In summary, the Cummins 3967458 Cylinder Head plays a significant role in the functionality of engine systems by housing and integrating various components essential for combustion, valve operation, fuel delivery, cooling, lubrication, sealing, and emissions control. Its design and features contribute to enhanced engine performance, reliability, and efficiency.


  1. Composite Materials Handbook Volume 4 Metal Matrix Composites, SAE International, 2013.

  2. Alternative Powertrains and Extensions to the Conventional Powertrain, Michael Hilgers, Springer Nature, 2023.

  3. Design and Development of Heavy Duty Diesel Engines: A Handbook, P. A. Lakshminarayanan, Avinash Kumar Agarwal, Springer, 2019.

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SPECIFICATIONS

Recon Equivalent
3967458RX
Package Dimensions
86.0 x 36.0 x 19.0 in
Weight
40 lbs

BILL OF MATERIALS

Name Quantity Part Number
Valve Collet
Intake Valve
Exhaust Valve
Valve Stem Seal
Valve Spring Retainer
Cylinder Head
Valve Spring
* 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.