Go to megazip.net (or a similar site with parts catalogs) and look up the part numbers - if they are the same then it will fit, if they are different, then it MAY not fit.
Hope you already have the Rubber pad underneath it. that was PITA part to source Wasn't able to locate any part number for that Rubber pad.. unless you ordered the whole damn thing..Mine came off when someone helped me load my kayak on the Thule hullavator. Instead of lifting the kayak to shift it back a bit, they just pushed it backwards on the cradle, shoving the hullavator foot off the rail and loosened the end cap. I didn't know the whole damage until later after the drive when the cap wasn't there any more - blew off during driving.
Yeah that's a good solution for hard to find plastic parts. saw somewhere in Russian forum that they've 3D printed rear parcel tray plastic knobs with some tough material. can vouch for the material quality because I've ordered and fixed door stopper plastics from Russian sourced eBay seller.I wonder what will finally arrive. I'm starting to appreciate that innovative idea of being able to purchase 3D files of spare parts for local 3D printing.