It's impossible to know if they can be used because we don't know what they sent you.
RockAuto. I'd buy from European/VW specialist sites like MJM or ECS. They will be better at determining what parts are right for your car.
i ordered new calipers from rock auto and told them it was for the 337 fitment. they send the wrong ones anyways. the reason i needed new ones is cuz there both sticking. can i use my hangers with these calipers? or are they way differnt??
i searched,,,, for the record.
No. you need the proper 3/2/G/R32 calipers.
Not to rub salt in your wounds, but this is why we order from places that actually care about the end user.
German autoparts gets my money every time first. If they don't have it then I check MJM Autohaus, then if still negative, I reluctantly go with ECS..
Sorry, I was wrong about the pads, I can admit my mistakes, but everything else is about to be addressed:
And to put this to a rest with all the misinformation being thrown around in here...
Regular MK4 cars
As you can clearly see, the 3/2/G rotors are not only bigger in diameter, but substantially bigger in thickness, hence different calipers.
Ironically enough, 3/2/G and regular 1.8t/VR6 cars share the same front calipers and pads, but different sized rotors and caliper carriers, but the 2.0 and TDI MK4 use completely different front braking stuff that isn't compatible with anything...
It shouldn't take part numbers to see what you can physically see for yourself and is plainly obvious if you actually looked at these cars. But what do I know, I mean, I've only had a regular model jetta for 6 years that I put a full set of 20th brakes on, and then after that car I got my current 20th for the last three years...