Volvo 5.0 OSI alternator

[tarjas]

My 06 VP OSI is no longer charging my battery, I think I managed to kill my alternator when I reinstalled my batteries I did not hook up the ground to battery 2, took me a while to figure it out (i thought the battery was dead) so the switch was on batt 2 with the engine running. I went through the SELOC troubleshooting process,everything looks good with the exception of the voltage regulator check on the alternator, it basically reads nothing, it should be a couple volts or so.

So, I think I just bought myself a new alternator, there are 2 part numbers I've seen for the 06 5.0 OSI on VP store and Marine Parts Express- they are 3884950 and 3862665. The first if $380+, the second $230 ish. Obviously I much prefer the second, anyone know the diff between the 2? Thank you for any help. Cheers,

 

[Don S]

Re: Volvo 5.0 OSI alternator

What is the full model number of your engine need the letters after OSI, Volvo doesn't do anything by year. Even a SN would help.

 

[tarjas]

Re: Volvo 5.0 OSI alternator

Model is 2006 VP 5.0 OSI-F. I called Marine Parts Express, seems the 665 part was superseded by the 950 part. Nice price increase to go along with it. I did find a couple of non OEM solutions for ~100 bucks cheaper but the consensus seems to be to avoid non OEM. Also called an alternator shop who thinks they can fix it, not sure the price. Appreciate any advice, it would be nice to not have to fork out too much. Cheers!

 

[Don S]

Re: Volvo 5.0 OSI alternator

Here is a link to Volvo Penta's official online store where you can find the proper OEM part numbers and parts. Might want to note that's it's powered by iboats, not marine parts express.

http://www.volvopentastore.com/Serp...*****.183961353--store_id.366--view_id.330019

All you have to do is look at the top of this thread and click on Volvo Penta parts. Has all the parts breakdowns and up to date part numbers.