912ULS Water Pump Versions

As long as the hoses fit up ok and not clash with the airframe, I would keep what you have.

You can also rotate those fittings if needed but follow the procedures if you do.

Apparently these coolant elbows often need to be changed around to provide clearance from the engine mount structures of various airframes. You can see in the attached screenshot how an 80° fitting needs to be installed in the cyl. 2 outlet to allow the genuine Rotax ring mount to be used. From memory, my engine's installation requires two 80° fittings to provide clearance from the engine mount.

There's a good video on this site demonstating how to change the outlet fittings: https://www.rotax-owner.com/en/videos-topmenu/rotax-minute/375-elbow (Note that at the time that this video was filmed, the then current MMH specified the use of Loctite 245 [blue] to seal the fittings, while the latest MMH specifies the use of Loctite 577. [yellow])

The callout for P/N 922232 in the RANS documentation is a bit of a head scratcher: P/N 922231 is an 80° elbow fitting and P/N 922233 is a 45° elbow fitting, but there is no P/N 922232 in the 912/914 IPC. Maybe it's an obsolete part number that was still current at the time RANS developed the engine installation.

The video you referenced is excellent!  They recommend Loctite 648 (green).  I think I also read that somewhere in the Rotax documentation?  Thanks!

Heat the fitting area where it screws in with a heat gun or a small butane torch and get it hot. Then it will unscrew. Make sure the threads on the new fitting or the old one are clean. I clean them with laquer thinner. Then I prefer Loctite 648. Apply it on all the threads and not just one drop like a bolt. Then screw it all the way in and then back out to the alignment position you want it.

You do the same thing on top of the engine where the 17mm coolant hoses are. I see leaks up there from time to time. I put a magic marker mark on the flange and the pipe so I know exactly where I want it to point when I'm done. I remove the flange it's screwed into and take it off the engine so as not to heat other items and it's easier this way. Heat it and unscrew the fitting. Clean those threads and apply the Loctite 648 and screw it back in and align your marks so you keep the angle you want the fitting to face.

Just a note. 

Rotax changed the use of 648 (and also 242/243) on the cooling system parts.  The new material is specifically for sealing liquids rather than a thread locker.  

Cheers