Yes, the 32x48 Reese Solo Cargo Carrier for 2" Hitches # PS1040100 can be used with your 2017 Keystone Cougar Travel Trailer.
You are going to need a trailer hitch to use this cargo carrier so you'd need to add one with # C13702 if you don't already have one or you can just use the 24x40 etrailer Cargo Carrier for RV Bumper # e99050 instead which will bolt up to your bumper. view full answer...
The correct wedge kit for the Curt Crosswing Lightweight 5th Wheel Trailer Hitch # C86JR is the Sidewinder Wedge for Curt CrossWing 5th Wheel Trailer Hitch # C85DR. view full answer...