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3646323
Cylinder Head
Cummins®

DISCONTINUED

Cummins®
Superseded by 5581141
Genuine OEM Part

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. We make it easy to buy truck parts online.

Manufacturer Warranty*
DESCRIPTION
The cylinder head is a crucial component of the engine that sits on top of the cylinder block and forms the combustion chamber. Part number 3646323 refers to a specific cylinder head model used in certain truck engines. The cylinder head houses the intake and exhaust valves, spark plugs or injectors, and passages for coolant and oil to circulate through. It must be able to withstand high temperatures, pressure, and mechanical stress while maintaining an airtight seal with the engine block. The shape of the combustion chamber affects engine performance and fuel efficiency, so manufacturers use advanced design and casting techniques to optimize it. Cylinder heads can be made of cast iron or aluminum alloy depending on their application. Proper maintenance including regular inspections, cleaning, and replacement as needed is essential for ensuring optimal engine performance and longevity.
RELATED PARTS
Recon Equivalent
3646323RX
Supersedes
3009138, 3018868, 3021692, 3068402, 3081073, 3646326, 3811988

SPECIFICATIONS

Notes
Recon Equiv. 3646323 NX/RX
Package Dimensions
15.75 x 9.25 x 12.63 in
Weight
66 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* This information is provided as is and may be out of date.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.

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