In need of an Alternator

[terrible1one3]

Hey all, I have a 1997 Maxum 2100 SR2. I'm also new to boating but not engines. I have an alternator that is bad (also original) and I was wondering if anyone could point me in the right direction for a replacement.

It is the regular 5.7 Mercruiser motor from the 1997 model. I am going to pull the old one out this weekend so I will be able to take pictures and send any markings on it if you need more information.

I think right now I am going to try to match mine to one of these visually.

Thanks in advance for any replies!

[jparsons121]

For parts, I usually start with identifying the OEM part using sites like Mercruiserparts.com. Then google around to see what may be available that matches that OEM number.

[terrible1one3]

Great resource, thank you for pointing it out! If you can spot check me on my logic.

So I am pretty sure this is what I have going through the mercruiserparts.com: https://www.mercruiserparts.com/807652t-alternator

I search that and something like this comes up: dbelectrical.com part

It says "replaces these part numbers" then under Mercruiser shows my part number that came up in mercruiser parts 807652T. So this is a $90 replacement of my $300 alternator. What's the consensus on these cheaper replacement parts? Auto world it's a mixed bag but most are pretty reliable to go non-oem but might need some 'tinkering' to make work. How about in the marine world? Not worth it because it's a lot higher stakes on the water?

Main question overall, should I go OEM or are these other ones worth it.

Safety, reliability, simplicity and cost are my judgements in that order.

[Phillbo]

DO NOT USE AUTOMOTIVE PARTS!!!! You have a marine application only use marine parts!!!

[mmwjr]

Db electric does offer marine parts. I’ve heard mixed reviews from people who have bought from them.

[terrible1one3]

Originally Posted by Phillbo

DO NOT USE AUTOMOTIVE PARTS!!!! You have a marine application only use marine parts!!!

I’m aware of that. Not talking about using automobile parts on a marine application at all.