Engine - 4.3PLKD #3868618Cobra SX legWellcraft 21 sl 1997I have been trying to get a replacement trim sender for the above boat. I have removed the part and it reads on the sender itself 3855074. The Volvo dealers tell me they do not recognise this part, but another company has provided me with part number 3863007. I have the part, but it looks different to what is already there. It does have the 3 wires for connection though. I think it may fit but do not want to damgage it as it cost 62 GBP. Any ideas????