Fan belt to use with alternator swap on my 2000?

bengelhardt · Post by **bengelhardt** » Tue Apr 12, 2005 11:46 pm

Hi all.

I'm working on swapping in a GM alternator to the RIGHT side of the engine on my 1970 2000 but I don't know which fan belt to use.

The 311s write up for swapping in high windshield cars doesn't list a number. The write up for the low windshield cars shows PN 40013 but I'm not sure who the manufacturer is for that part number and I'm not sure if it is the same for a high windshield 2000.

I've also seen 15380 but, again, unknown manufacturer.

And lastly, I've seen NAPA Premium XL 25-09783 but I think that was for a 1600 and I don't know if the 2000 would use the same belt.

Can anyone out there give me a recent part number (with mfr.) for the belt that should be used for a GM alternator on the right side of a 2000?

Thanks in advance for your help.

impinhigh · Post by **impinhigh** » Wed Apr 13, 2005 12:31 am

Hey Bill,

No help with a part number but I've done the swap twice and what I did was use a length of fuel hose to approximate the diameter of the belt. Cut it to size, tape the ends together and off to the auto parts store. With a little help you should be good to go. Error on the small size.

Worked both times for me.
Matt

esmeby · Post by **esmeby** » Wed Apr 13, 2005 11:58 pm

Hey- I wrote that!

Napa 7380 for my U20 with a Bitchin' Camaro alternator on the passenger side. It also has the number 25 on it, so I would guess that is the length.

I keep the packaging that come with the parts in case I have a breakdown on the road, since not much is original.

Erik Smeby

bengelhardt · Post by **bengelhardt** » Mon Apr 18, 2005 12:03 am

Just for the record, after many tries, the winning belt was Dayco #15385.