Regulator/rectifiers?

How interchangeable are these? I have a few extras from other bikes, Im building a custom harness so I figure Id use one instead of paying for a replacement...

I have a 77 KZ1000 that had the original rectifier I replaced it with a used one off a police bike. works great. Had to relocate it as it would not fit in the original spot and make a new connector.

I was thinking one from a completely different bike.

I plan to relocate/rewire anyway.

main difference is single phase versus three phase, some regs use remote sensing at the battery. Some are rated for higher current than others.

Contact www.oregonmotorcycleparts.com as they can make/sell custom rectifer/regulators.

Notaduc, I presume you are talking about combo rectifier / regulator units. If not this may not hold true...... If the bike is a Kawasaki and has a 3 phase alternator, then they will be interchangeable between models! I always use a 6 wire combo unit as opposed to a 5 wire.
Sorry, can't confidently advise on completely different make of bike
RegardZ.