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AR12251
Main Bearing Kit
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$5,199.99 $6,759.99

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.


DESCRIPTION
A Main Bearing Kit (part number AR12251) is a set of bearings that support the crankshaft in an engine. These bearings are located in the engine block and help reduce friction between the rotating crankshaft and stationary engine block. The main bearing kit typically includes multiple bearings that are designed to fit precisely around the crankshaft journals, ensuring proper alignment and smooth operation. Over time, these bearings can wear out due to normal use or lack of lubrication, which can cause excessive noise or even engine failure if not replaced promptly. A high-quality main bearing kit is essential for maintaining optimal engine performance and longevity.
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SPECIFICATIONS

Comments
0.25 mm Oversize.
Hazard Description
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
15.5 x 12.2 x 7.2 in
Weight
16.8 lbs

BILL OF MATERIALS

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* This information is provided as is and may be out of date.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