3945930
Main Bearing
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$26.95 $32.07

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 Main Bearing (Part Number: 3945930) is a crucial component of an internal combustion engine, which supports the crankshaft and ensures smooth rotation. It is typically made of high-strength steel or aluminum alloy and designed to withstand heavy loads and high temperatures. The main bearing is located in the engine block and consists of two halves that encircle the crankshaft journals. These halves have a thin layer of soft metal, such as lead or tin, that provides a low-friction surface for the crankshaft to rotate on. Over time, main bearings can wear down due to friction and heat, leading to excessive vibration or even engine failure. Regular maintenance, including oil changes and inspections, can help prevent such issues from occurring.

SPECIFICATIONS

Notes
Standard.
Package Dimensions
4.75 x 3.0 x 1.63 in
Weight
0.58 lb

BILL OF MATERIALS

Name Quantity Part Number
Main Bearing
Main Bearing
* This information is provided as is and may be out of date.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.