3006349
Rocker Lever Cover
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$154.95 $184.39

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 Rocker Lever Cover 3006349, manufactured by Cummins, is a component designed for use in commercial trucks. This cover plays a role in protecting and housing the rocker lever mechanism within the engine. Cummins, a well-established manufacturer in the industry, produces this part to ensure reliable performance and durability in demanding applications 3.

Basic Concepts of Rocker Lever Covers

A Rocker Lever Cover is an enclosure that protects the rocker lever assembly in an engine. This assembly is responsible for transferring motion from the camshaft to the valves, allowing them to open and close at precise intervals. The cover not only shields these components from external contaminants but also helps maintain the integrity of the lubrication system by containing oil within the engine. Typically, rocker lever covers are made from durable materials such as cast aluminum or steel, chosen for their strength and resistance to wear 4.

Purpose of the 3006349 Rocker Lever Cover

The 3006349 Rocker Lever Cover is designed to play a role in the operation of a truck engine by providing a secure enclosure for the rocker lever assembly. This cover contributes to the engine’s efficiency and performance by protecting the rocker levers from debris and ensuring that the lubrication system functions correctly. By maintaining a clean and well-lubricated environment, the cover helps to reduce wear on the rocker levers and other interacting components, thereby supporting the overall reliability of the engine 1.

Key Features of the 3006349 Rocker Lever Cover

The 3006349 Rocker Lever Cover is constructed with several design and material features that enhance its function. It is typically made from high-quality cast aluminum, which offers a balance of strength and lightweight properties. The cover is engineered with precise fittings and seals to ensure a secure attachment to the engine block, preventing oil leaks and maintaining structural integrity under high operating conditions. Additionally, the design may include ventilation features to manage heat and pressure within the enclosure 2.

Benefits of Using the 3006349 Rocker Lever Cover

Installing the 3006349 Rocker Lever Cover in commercial trucks offers several advantages. The durable construction and precise engineering contribute to improved engine performance by ensuring that the rocker lever assembly operates within a protected and well-lubricated environment. This cover also provides enhanced protection for internal components, reducing the risk of contamination and wear. Furthermore, the robust design of the cover supports long-term durability, helping to maintain the engine’s efficiency over extended periods of use 3.

Installation Process

Installing the 3006349 Rocker Lever Cover involves several steps to ensure a proper fit and secure attachment. Begin by cleaning the engine block surface where the cover will be mounted to remove any debris or old gasket material. Position the cover over the rocker lever assembly, aligning it with the mounting points. Use the appropriate fasteners to attach the cover, ensuring that they are tightened to the manufacturer’s specified torque settings to avoid over-tightening or under-tightening. Finally, inspect the installation to confirm that the cover is securely attached and that there are no signs of oil leaks 4.

Maintenance and Care

To ensure the longevity and optimal performance of the 3006349 Rocker Lever Cover, regular maintenance is recommended. This includes periodic inspections to check for signs of wear, damage, or oil leaks. Cleaning the cover and its gaskets can help prevent the buildup of contaminants that may affect its sealing properties. If any issues are detected during inspections, such as gasket degradation or cover damage, consider replacement to maintain the integrity of the engine’s lubrication system 1.

Troubleshooting Common Issues

Common problems associated with Rocker Lever Covers may include oil leaks, gasket failure, or cover damage due to impacts or corrosion. To troubleshoot these issues, begin by inspecting the cover and gaskets for signs of wear or damage. If an oil leak is detected, check the gaskets and seals for proper seating and consider replacing them if necessary. For cover damage, assess the extent of the damage and determine if repair or replacement is required to restore the cover’s function and protect the engine components 2.

Cummins: Manufacturer Overview

Cummins is a renowned manufacturer with a strong reputation in the industry for producing high-quality engine components. Established with a commitment to innovation and excellence, Cummins has a history of developing reliable and durable parts that meet the demanding requirements of commercial and industrial applications. Their dedication to quality is evident in the design and construction of components like the 3006349 Rocker Lever Cover, ensuring that they provide dependable performance in challenging environments 3.

Compatibility of Rocker Lever Cover Part 3006349 with Cummins Engines

The Rocker Lever Cover part 3006349, manufactured by Cummins, is designed to fit seamlessly with a range of Cummins engines, ensuring optimal performance and protection. This component is integral to the engine’s operation, providing a cover that shields the rocker levers from debris and contaminants, which can otherwise lead to wear and tear 4.

N14 MECHANICAL Engines

The N14 MECHANICAL engine series benefits significantly from the Rocker Lever Cover part 3006349. This part is specifically engineered to fit the unique design and requirements of the N14 MECHANICAL engines, ensuring a snug fit that enhances the engine’s longevity and efficiency. The cover is crafted to withstand the high-stress environment within the engine, protecting the rocker levers from the rigors of continuous operation 1.

NH/NT 855 Engines

Similarly, the NH/NT 855 engines are compatible with the Rocker Lever Cover part 3006349. This part is designed to integrate perfectly with the NH/NT 855 engines, providing a reliable barrier against contaminants and debris. The precision engineering of this cover ensures that it fits the specific contours and design of the NH/NT 855 engines, contributing to the overall reliability and performance of the engine 2.

Role of Part 3006349 Rocker Lever Cover in Engine Systems

The part 3006349 Rocker Lever Cover is an essential component in the orchestration of various engine systems, ensuring optimal performance and efficiency. It interfaces with several key components to facilitate the smooth operation of the engine.

Integration with Breather Systems

The Rocker Lever Cover works in conjunction with the Crankcase Breather system. This system is responsible for releasing pressure built up within the crankcase, which is vital for maintaining engine health. The Rocker Lever Cover aids in directing the flow of gases from the Breather & Filler arrangement, ensuring that contaminants are expelled efficiently. It also interacts with the Breather & Valve Cover setup, contributing to the regulation of air and vapors within the engine compartment 3.

Coordination with Valve Covers

In engines where the Valve Cover & Filler or Valve Covers & Filler are present, the Rocker Lever Cover plays a significant role. It ensures that the valve mechanisms are adequately covered and protected from external elements. This cover also assists in maintaining the integrity of the Cover Rocker HGS.MTG. arrangement, which is essential for the precise operation of the rocker arms and valves 4.

Interaction with Crankcase Components

The Rocker Lever Cover is also involved with the Crankcase and its associated components. It helps in managing the Engine Breather and Oil Filler system, ensuring that the oil levels are maintained and that the breather system functions without obstruction. The cover contributes to the overall Breather Arrangement, working alongside components like the Breather and Vent to keep the engine environment clean and pressure-balanced 1.

Supporting the Rocker Lever Housing

As a component of the Rocker Lever Housing, the Rocker Lever Cover is integral to the housing’s function. It provides a secure enclosure for the rocker arms, protecting them from debris and ensuring they operate within a controlled environment. This, in turn, supports the efficient transfer of motion from the camshaft to the valves 2.

Comprehensive Engine Breather System

The Rocker Lever Cover is a part of the comprehensive Engine Breather System. It interacts with various breather components, such as the Breather and Valve Cover and the Breather / Filler Loc, to ensure that the system operates seamlessly. This integration helps in maintaining the engine’s performance by preventing the buildup of harmful pressures and contaminants 3.

Conclusion

In summary, the part 3006349 Rocker Lever Cover is a multifaceted component that plays a significant role in the functionality of several engine systems. Its integration with breather, valve cover, and crankcase components ensures that the engine operates efficiently and remains well-protected 4.


  1. Michael Hilgers, Vocational Vehicles and Applications, Springer Nature, 2023.

  2. Michael Hilgers, The Diesel Engine Second Edition, Springer Nature, 2023.

  3. Alma Hillier, Fundamentals of Motor Vehicle Technology Book 1 6th Edition, Oxford University Press, 2014.

  4. Robert Bosch GmbH, Bosch Automotive Handbook 9th Edition, Robert Bosch GmbH, 2014.

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SPECIFICATIONS

Hazard Description
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
14.2 x 9.4 x 6.1 in
Weight
2.06 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.