A condenser's job is just that, condense the vapor refrigerant into a liquid. The opposite is true of your evaporator hence that name for it.
This is done by way of air flow by way of condenser fan at a certain rpm (and your blades on the fan have a certain pitch to match that rpm) by drawing only a certain amount of air through those coils to match the compressor's ability to work and pump refrigerant. Too much or too little and your system will begin to have serious problems such as overheating of components and loss in system cooling capacity, stressing everything out.
If 825 is what you have I'm betting it's a high torque and not so cheap motor comparatively to that 1075 replacement., which btw, just because it has the same brand name is not the same motor as the rpms are way different and that is what counts as well as horse power. Also means you have a high rated capacitor to match that motor. Most motors on average with a 1075 rpm are 5 mfd run capacitors. A high torque, low rpm motor such as your's would be a 10 or a 12.5. Same price range as the smaller caps ($10-ish), I'm just saying.
You sure it isn't just the capacitor that's bad?