Need help for v belts part numbers
 

Re: Need help for v belts part numbers
 

Any numbers on the existing belts?

Re: Need help for v belts part numbers
 

I got lost on the way ‏Alternator belt But the other belts I have a number .

Re: Need help for v belts part numbers
 

GM belt part numbers. Usually located on Ebay.

Re: Need help for v belts part numbers
 

I just want to know the part number napa or good year Alternator belt .

Re: Need help for v belts part numbers
 

I have these in my notes. Chevy, but my layout is the same as yours:
Hope this helps

Re: Need help for v belts part numbers
 

This item doesn't fit ( alternator GATES 7525 )

Re: Need help for v belts part numbers
 

Belt numbers indicate the belt length. So the PS belt shown is 15356 15/32 wide and 35.6 inches long. The 25-7555 is 10mm wide and 55.5'' long ( I don't know what the 7 means) and the alternator belt is usually 52.5 long, but I recently installed an alt upgrade to a 1 wire on a truck and the belt length needed was a little longer and I still had to force it on a little at 53'' long so it took a 15530. Hope that helps. The gates shown before this post shows a 7525 --7/16'' wide and 52.5 long

Re: Need help for v belts part numbers
 

Maybe you have the 62A alternator, or... :shrug:

Re: Need help for v belts part numbers
 

A smart man would know to cross reference to get the right belt....

Re: Need help for v belts part numbers
 

If worse comes to worse, wrap a rope around it and measure to get a starting point for a belt length.

Re: Need help for v belts part numbers
 

A smart man should know that in my country these belts are not available so he should order them in the correct size from the Internet

Re: Need help for v belts part numbers
 

this Alternator who needs a belt .

Re: Need help for v belts part numbers
 

No sir its 63A

Re: Need help for v belts part numbers
 

I mentioned that because rockauto listed a different belt. Worth a look since they show different options for several combinations of accessories. If you click the info button, it will show belt dimensions

Also agree with the suggestion to measure the path with a rope or tape measure. Belt length is measured at the outside edge of the pulleys.

Re: Need help for v belts part numbers
 

I appreciate it sir , Thanks

Re: Need help for v belts part numbers
 

Saad, as an FYI that alternator shown in reply #13 is not the correct model/type for your 72 K2500, if interested in more info and pics on the 71 and prior vs. 72 style alternator subject see the below linked thread post #10, #16 and #20. Happy New Year and good luck in your search, Mel in Oregon :chevy:


http://67-72chevytrucks.com/vboard/s...d.php?t=855980

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Re: Need help for v belts part numbers
 

Very clear. Thank you sir and happy new year

Re: Need help for v belts part numbers
 

As information only the X in the number is for the clogs on the inside of the belt.
it makes no difference on the sizing. They are rated for smaller diameter pulleys and higher HP than the belts with the smooth inner. Either with or with out the X in the umber will function fine. I believe this "X" type of belt was invented after out trucks were made. OEM belts of this era were all smooth on the inside.
Cheers

Re: Need help for v belts part numbers
 

Try this:

https://www.rockauto.com/en/catalog/...rive,belt,8900

Re: Need help for v belts part numbers
 

Thanks

Re: Need help for v belts part numbers
 

Purchased Thank you