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putting the alternator upgrade on my merc 488
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Author:  4windancer195 [ Thu Jan 15, 2015 9:34 am ]
Post subject:  putting the alternator upgrade on my merc 488

installing the alternator upgrade on my merc 488, i got the top bracket and alternator, missing the bottom bracket, does anyone know the part number?

Image

Author:  ric [ Thu Jan 15, 2015 9:56 am ]
Post subject:  Re: putting the alternator upgrade on my merc 488

The picture you provided is a custom made bracket kit sold by an eBay seller. There is no part number. You can try contacting them to see if they will sell you just the bracket.
http://www.ebay.com/itm/MERCRUISER-470- ... 3a9fce6c65

Author:  4windancer195 [ Thu Jan 15, 2015 10:00 am ]
Post subject:  Re: putting the alternator upgrade on my merc 488

so the second bracket isnt necessary? i can use just the top bracket and the belt tension?

Author:  ric [ Thu Jan 15, 2015 10:05 am ]
Post subject:  Re: putting the alternator upgrade on my merc 488

4windancer195 wrote:
so the second bracket isnt necessary? i can use just the top bracket and the belt tension?


You're not understanding. There is no part number for the bracket because it never had a part number. That bracket you pictured is made in someone's garage. You can try contacting them on eBay if they will just sell it to you without buying the whole $400 kit since you already have an MARINE alternator (right?).

Author:  4windancer195 [ Thu Jan 15, 2015 10:06 am ]
Post subject:  Re: putting the alternator upgrade on my merc 488

yes i have marine alternator and the top bracket in the picture as well.

Author:  ric [ Thu Jan 15, 2015 10:12 am ]
Post subject:  Re: putting the alternator upgrade on my merc 488

4windancer195 wrote:
yes i have marine alternator and the top bracket in the picture as well.


The alternator conversion for the 488 was never an official Mercruiser offering. 3rd party companies make this conversion kit, and well.. there's a bunch of different ones out there. The specific picture you provided is made by an eBay seller out of his garage. If you want that specific piece in that picture, you'll have to contact him on eBay and cross your fingers he'll sell it to you without selling you the whole $400 kit.

Author:  4windancer195 [ Thu Jan 15, 2015 10:20 am ]
Post subject:  Re: putting the alternator upgrade on my merc 488

found another one off ebay, same as mine, looks like the second (lower) bracket isnt even necessary. I'm not missing anything. Bolting mine up today and measuring for belt size, need a belt too. Thanks for your help

Author:  ric [ Thu Jan 15, 2015 10:26 am ]
Post subject:  Re: putting the alternator upgrade on my merc 488

4windancer195 wrote:
found another one off ebay, same as mine, looks like the second (lower) bracket isnt even necessary. I'm not missing anything. Bolting mine up today and measuring for belt size, need a belt too. Thanks for your help


Um, yes it's necessary. Without it, you can't tension the belt and the alternator flops in the wind.

Author:  babbot1 [ Thu Jan 15, 2015 11:29 am ]
Post subject:  Re: putting the alternator upgrade on my merc 488

Ric is correct. the bottom bracket actually holds the alt in place and the top is the the adjustment for belt tension. I can't tell by the picture but I think the bracket is the only place the alt actually bolts. It doesn't look like there are any other bolts in the back.

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