4376377 Image1

4376377
Piston Ring Kit
Cummins®

AVAILABLE

Cummins®

10 are currently available

Ships within 2-4 business days

$379.95 $452.14
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
A Piston Ring Kit, identified by its Part Number 4376377, is a set of circular metal rings that fit around the pistons inside an engine. The rings help to seal the gap between the piston and the cylinder wall, preventing oil from entering the combustion chamber while also containing the pressure generated by combustion. This kit typically includes multiple rings of varying sizes and thicknesses to ensure proper fit for different engines. A damaged or worn piston ring can cause engine performance issues such as loss of power, increased oil consumption, or even complete engine failure. Regular maintenance including inspection and replacement of piston rings can help ensure optimal engine function and longevity.

SPECIFICATIONS

Package Dimensions
7.7 x 1.3 x 7.7 in
Weight
0.5 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* This information is provided as is and may be out of date.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.

Frequently Asked Questions

Have a question? Find common inquiries about parts and procedures with the link below.

FAQ PAGE

Get in Touch

Something specific? Our support team is ready to assist you with whatever you may need.

Drop us a line. 1-800-466-1571

fast

Fast Delivery

We offer same day fulfillment Mon-Fri until 5pm EST.

Genuine

Genuine Product

We only sell real OEM truck parts designed specifically for your truck.

Trust

Trusted Experience

We're a fourth generation truck dealership family operating in Los Angeles since 1922.