meaning of suffix letter in part number

[actonern]

I'm looking to replace a scratched rear heat shield on my 2006 softail deluxe.

The part number listed for this is 65389-05B.

I've found a NOS part that is listed as 65389-05A.

Does anyone know if there's any difference between "B" and "A" for this part?  I'm asking because the seller has a "no return" policy.

Thanks...

[rigidthumper]

New suffix is usually a change of vendor to HD, sometimes a change of original spec, typically to be able to increase fitment. Most often, there will be miniscule if any visual differences.

[actonern]

Thank you kindly!  That's what I needed to know.