89 mid cabin alternator and belt size

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mrrudely
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Posts: 182
Joined: Sat Jun 08, 2019 11:52 am
Location: Marina Del Rey, CA

89 mid cabin alternator and belt size

Post by mrrudely »

replacing starboard alternator
it is a one wire
does anyone have a part number?
I found mando 39200
prestolite 39064
Motorola MR

also current belt size is 47 5/8" which seems a bit long

thx

rr
10 meter mid cabin
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prowlersfish
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Joined: Sat Nov 05, 2005 6:56 pm
Location: Lower Chesapeake Bay ,Va

Re: 89 mid cabin alternator and belt size

Post by prowlersfish »

Any photo of your Alt? Beacon Marine has some

https://www.trojanboats.net/zencart/ind ... th=102_110
Boating is good for the soul
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat :D
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Scott67
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Posts: 47
Joined: Wed Nov 03, 2021 8:44 am
Location: Jacksonville, FL

Re: 89 mid cabin alternator and belt size

Post by Scott67 »

mrrudely wrote: Tue Apr 02, 2024 1:45 am replacing starboard alternator
it is a one wire
does anyone have a part number?
I found mando 39200
prestolite 39064
Motorola MR

also current belt size is 47 5/8" which seems a bit long

thx

rr
Assuming your engine serial number is greater than 88710, the alternator numbers you quoted are correct and my recommended replacement would be an Arco 60104, $191.59 through Amazon.

Regarding the belt size, again assuming serial number greater than 88710, the correct belt part number is Crusader #98210
"Speakeasy"
1988 Intl 10 Meter Mid-Cabin Exp
Model 340
Twin 454 (350hp) Crusaders
1.5:1 Gearboxes
Jacksonville, FL
mrrudely
Sporadic User
Posts: 182
Joined: Sat Jun 08, 2019 11:52 am
Location: Marina Del Rey, CA

Re: 89 mid cabin alternator and belt size

Post by mrrudely »

thanks guys
serial number is 76868
I bought a DB Electric from Amazon
Looks like it will work, I'll Let you know if it doesn't.
As for the belt, that crusader number gives me a spec of 49 1/8" which is too long.
I will use the old belt as a guide.

rr
10 meter mid cabin
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