3689135 Preview Image
Isometric 3689135 Image 1
Front 3689135 Image 3
Top 3689135 Image 4
Left 3689135 Image 5
Right 3689135 Image 6
Back 3689135 Image 7
Bottom 3689135 Image 8

3689135
Idler Gear
Cummins®

DISCONTINUED

Cummins®
Superseded by 3689611
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 Idler Gear (Part Number: 3689135) is an essential component of a truck's engine system. It is responsible for transmitting rotational force from the crankshaft to the camshaft, which in turn controls the opening and closing of the engine's valves. The idler gear is designed to maintain proper timing between these two components, ensuring smooth and efficient operation of the engine. Made from high-quality materials, it is built to withstand heavy loads and extreme temperatures, ensuring reliable performance over time. When properly maintained, an idler gear can last for many years without needing replacement.

SPECIFICATIONS

Package Dimensions
6.0 x 3.0 x 6.63 in
Weight
3.05 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* This information is provided as is and may be out of date.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.