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4938938
Main Bearing
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$60.99 $79.29
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
A Main Bearing, also known as a crankshaft bearing, is a component found in the engine block of a truck. Its purpose is to support and reduce friction between the crankshaft and engine block. The Main Bearing is made up of two halves, an upper and lower shell, that are positioned around the crankshaft. These shells are typically made of steel or aluminum alloy and are coated with a layer of babbitt or other soft metal to prevent damage to the crankshaft. The Part Number for this specific Main Bearing is 4938938. It is important to ensure proper fitment when replacing Main Bearings as they play a critical role in maintaining engine performance and longevity.
RELATED PARTS
Supersedes
3901152, 3929023

SPECIFICATIONS

Notes
0.50 mm Oversize.
Package Dimensions
4.6 x 3.0 x 1.7 in
Weight
0.3 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* This information is provided as is and may be out of date.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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