Cummins Product Placeholder

3991309RX
Cylinder Short Block
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$14,999.95 $17,849.94
Refundable Core Charge: $1,549.95

Oversize Item

This is an oversize product. Additional shipping fees may apply.

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
The Cylinder Short Block, also known as Part Number 3991309RX, is a crucial component of a truck's engine. It is essentially the foundation of the engine, consisting of the cylinder block and all its internal components except for the cylinder head and head gasket. The short block contains the piston assembly, connecting rods, crankshaft, bearings, and other vital parts that work together to convert fuel into motion. As such, it plays a significant role in determining the performance and longevity of a truck's engine. In cases where an engine has suffered irreparable damage or wear-and-tear over time, replacement with a new Cylinder Short Block may be necessary to restore optimal functioning.
RELATED PARTS
New Part Equivalent
3991309

SPECIFICATIONS

Package Dimensions
45.5 x 24.0 x 28.0 in
Weight
300 lbs
* This information is provided as is and may be out of date.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.