Hi the last post i placed on here was the wrong item. I have an ecu or whichever sea doo calls there computer"brainbox" i am an marine mechanic by trade i recently seperated from my employer. We had a pwc im almost positive it was a seadoo my partner misdiagnosed a no spark situation. We ordered a new ecu for it and now im tryin to sell it. I have no invoice or paperwork to tell me the model of the pwc all i have are the numbers on the back which reads as follows, top 3735 then underneith it has #f8t31485 space 6801. I tried seadoos website and various other after market parts suppliers, but have had no luck!! I had to eat the cost due to a misdiagnostic error which my boss was not going to foot the bill so times are tight now and i wanna get some of my money back. So if you can help me out with identifing this part and what models utilize it me and my family sure would appriciate it. Thank you in advance. Sincerly rich and family my phone# 239-849-9940 and my email is recoyle3@yahoo.com