If your original ECU has failed, this Siemens unit 665861 is a straightforward way to get back on the water. It is a direct replacement made for 2004-2011 Sea-Doo watercraft.
Swapping it in is simple: battery off, ECU in, battery on. Because it is preprogrammed for use, no key matching is involved.
We charge a $100 core deposit unless the original ECU comes back to us; enclose your printed invoice with it.
- Model: 665861
- Applications: 2004-2011
- Direct replacement
- Ready to run on arrival
- $100 core policy applies
