How to register an account on PCC

This user guide walks you through the registration process of a new user on Parts.Cat.Com.

Visits Parts.Cat.Com

Your first step involves visiting Parts.Cat.Com (PCC).

The easiest way to do this is to access 'Online Tools' in the top right of the WesTrac website and click 'Parts.Cat.Com' in the drop-down menu.

PCC registration user guide

We recommend bookmarking the link in your browser for future use.

Register on Parts.Cat.Com

Click the 'Sign In | Register' link in the top right of PCC.

PCC registration user guide

Create Account

Click the light grey 'Create Account' button when prompted. 

PCC registration user guide

Complete Registration Form

Complete the registration form.

Start by inputting your Dealer Customer Number (DCN) if known. If you have one, but are unsure, please call email If you don't have one, leave it blank.

By default your username will be your email address. You are able to enter your own username by overwriting the email address.

PCC registration user guide

Be sure to tick the acceptance box for Caterpillar's T&Cs and click the dark grey 'Complete Registration' button when you are finished.

PCC registration user guide

Logged On

You are now logged on and assigned to a Cash Account.

PCC registration user guide

Connect User ID to WesTrac Account

At this stage, you can order parts and pay by credit card. A WesTrac team member will move your User ID onto your WesTrac account within 24-48 hours. If you need this occur urgently, please email

This site uses and sets "cookies" on your computer to help make this website better. By continuing to use this site without changing your settings, you are agreeing to our use of cookies.