Old post but I just aquired a lightly used next gen UCM1-3.5 for my '04 330 express. It's a 2014 model with 350 hours on it. It was swapped out of a larger boat because it was too small for them. So far I have test run it in my shop and she's a runner lol. Changed the impeller, air filter, water pump belt., and engine oil
My 330 had the fischer Panda 4.2 in it when I bought it in 2021. It was beyond repair so I parted it out. I did notice what nobody ever mentions about this swap: it's a tight fit. It's about 6" longer side to side, 1" wider front to back...yet shorter. Basically, it's a longer/wider/shorter than the Panda. The Panda was a tight fit to begin with.
I'm still in my prep process but here's what I had to do on my specific boat:
-Move the Diesel tank further toward the Starboard side stringer. On my boat they mounted it 6" off that. There's a substantial wiring harness there so you only net about 2-3" moving it. but it's needed.
-Relocate the raw water pump for the AC.
Of course, I'm in the "might as well" stage... might as well replumb the sea strainers/seacocks for the gen and AC. I can't say for sure if they were done this way from the factory or if someone changed them along the way but i was sketched out by the use of Nylon/Thin plastic fittings on the seacocks/strainers. A failure here puts you on the bottom. Not sure if I'm doing the right thing but I'm changing them all out to bronze. new hoses too.
Also, I'm never getting the next gen harness all the way to the breaker panel to mount the control where the FP control was but the 12v control wires for the FP are still there and I'm going to attempt to use them. Otherwise, I will mount the next gen gauge/switch above the breakers on the port side walking down into the cabin.
Video of it running :
Next Gen 3.5 Test Run 
