Here is an update thanks to our member JDforester.
The online John Deere Parts Catalog is being phased out over the next year and replaced with Parts ADVISOR™ Which should be fully implemented by Q1 2017.
This new application will be the single parts information delivery tool for Ag, Turf, Construction & Forestry dealers, John Deere Power Systems distributors and end-use customers worldwide
The consumer site is: https://partsadvisor.deere.com/
I would test out your access to it prior to making a post. I log in as a dealer, so I don't see what the consumer version looks like. The look and feel of Parts ADVISOR will be the same but the functionality will be different. Customers will see a limited view of the application
I've been using it on mobile and desktop for several weeks now. I find it is an improvement over JDPC. That said, I don't usually use the online parts catalog as dealers don't use JDPC, we have a special Parts Manager Program designed by snap-on for Deere which is also being sunset and everyone will be using Parts ADVISOR.