I was given an 06 Big Bear 400 that needed some TLC. The main issue that needed to be addressed was the broken oil cooler. I purchased an older Big Bear oil cooler (90s?). However the issue is that the connection on this oil cooler is 22mm and the lines from the original are 14mm (and the connection on the engine is too).

Im at a loss on how to fix this without spending crazy amounts. Any help would be appreciated!

 

I don't know where you are, but pipe sizes here in the UK are now a nightmare, as we still use BSP sizes mostly but metric, and other thread forms are also used. So you may be able to get a pipe adapter from 14 to 22mm or you may not. Check on eBay, if they are common, they will be on there. If you can't get one, a local machine shop could run a couple up, but some would charge very little for this, some would charge a lot.