I have. Very old swiftech MCP655 pump in my rig. I've been running it hard for about 12 years now. I got it off eBay used with a busted impeller (bearing cup shot) and a fellow member here sold me the impeller out of his dead pump for nearly nothing. Good bless him, and I'm not even religious! Who knows what this pump went through before I had it. It certainly owes me nothing! But alas, I am now having some faint ticking out of it. Kinda like a fan with a bad bearing. I'm quite experienced with machines and I don't think there's any mistaking it. The bearing in the pump is going to pack it in any time now. So here's where I need help. Getting the same pump is not an option, there's nowhere to buy it here (Canada). Buying across border isn't worth it. I'd like to keep the same pump since its performed so well for so long. From what I can tell, this is a D5 style of pump. I'm guessing I can simply get the motor and impeller assembly and then swap it into my old swiftech housing. I'm looking for some confirmation and more info here. I notice there are several brands of D5s. What's a good one to get? What to stay away from? Will it be as reliable as my swiftech has been? Thanks guys. I think I got mine before they were being called D5 pumps.