Cummins Product Placeholder

3963961
Fuel Injection Pump
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$4,299.99 $5,589.99
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. We make it easy to buy truck parts online.

Manufacturer Warranty*
DESCRIPTION
The Fuel Injection Pump, also known as the fuel pump, is a vital component in diesel engines. It is responsible for delivering fuel to the engine at the correct pressure and timing for efficient combustion. The Part Number 3963961 is specifically designed for use in heavy-duty trucks and other large vehicles that require high performance and reliability. The pump works by drawing fuel from the tank and pressurizing it before sending it through a series of injectors into the engine cylinders. This ensures that each cylinder receives an equal amount of fuel, resulting in smoother running and improved power output. A malfunctioning or faulty Fuel Injection Pump can lead to poor performance, decreased fuel efficiency, and even engine damage over time. It is important to choose a high-quality pump like the 3963961 to ensure reliable operation and optimal performance under all conditions.

SPECIFICATIONS

Package Dimensions
14.0 x 14.0 x 10.0 in
Weight
21.24 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* This information is provided as is and may be out of date.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.