4376243 Image1

4376243
Engine Piston Kit
Cummins®

AVAILABLE

Cummins®

1 is currently available

Ships within 2-4 business days

$879.95 $1,047.14
Superseded by 2881879
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.

Manufacturer Warranty*
DESCRIPTION
An engine piston kit, identified by part number 4376243, is a set of components that work together to convert the fuel and air mixture into mechanical energy. The kit typically includes a piston, piston rings, wrist pins, and circlips. The piston is responsible for compressing the fuel mixture within the cylinder and transferring the energy to the crankshaft. The piston rings seal the combustion chamber to prevent leakage of gases while reducing friction between the cylinder wall and piston. The wrist pin connects the piston to the connecting rod while allowing it to pivot as it moves up and down in response to combustion forces. Finally, circlips secure the wrist pin in place on both sides of the connecting rod eyelet. A properly functioning engine piston kit is essential for optimal engine performance and longevity.
RELATED PARTS
Supersedes
2881879

SPECIFICATIONS

Package Dimensions
6.88 x 6.88 x 10.25 in
Weight
13.66 lbs

BILL OF MATERIALS

Name Quantity Part Number
Retaining Ring 2 3064305
Piston Pin 1 3689296
Piston Ring Kit 1 5405717
* This information is provided as is and may be out of date.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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