[twistedcs]

Ive read the guide when i was on the phone the rep emailed me this
But i have a serial number but cannot find a part number for the Logitech G513 Keyboard

To evaluate your warranty claim further, please complete the details below.
Once all the information has been supplied, we will be able to assess the warranty claim.

Warranty information:
- Product P/N number:
- Product M/N number:
- Product PID or S/N number:
* Warranty is determined based on production date, if you expect the product to be out of warranty based on this, then please provide a copy of the proof of purchase to ensure that you are getting the most accurate duration of your warranty.

Proof of Purchase:
- Please provide a copy of the proof of purchase (attach a scan or photo of the sales receipt in JPG format or PDF).

Shipping information (P.O. Boxes are not valid):
- First Name:
- Last Name:
- Company (if any):
- Address:
- City:
- County/State (if any):
- Postal Code:
- Country:
- Telephone Number (including country code):

Please complete for both the residential and the desired delivery address if needed. We deliver during regular business hours (Monday through Friday from 9:00 AM to 5:00 PM).
​Thank you in advance for providing this information.

[Auftot]

The model and part number don't change like the serial number does, I believe. You can normally find these with a quick Google search or on the product page.
For your G513 they are:

• Part number(depending on which variation you are doing) =
  

  PART NUMBERSilver, Romer-G Tactile Switch: 920-008721Carbon, Romer-G Tactile Switch: 920-008860Carbon, Romer-G Linear Switch: 920-008848Carbon, GX Blue Switch: 920-008924

• Model number = Y-U0034

I found these at
https://support.logitech.com/en_us/produ...oard/specs
https://www.logitechg.com/en-us/product/...g-keyboard (scroll to bottom of page)