Up for sale here is this NOS vintage Dual motor pulley. This is in the original box, and is unused but has some light corrosion/tarnish from age and from a reaction with the disintegrated foam from the box. It may require a little cleanup but will work fine. If the part number matches the part number in the service manual (which you can find free online), then this is the part for you. This came from a closed repair shop and is in good usable condition. The box may have some light to moderate wear/damage/writing on it, but the part will work fine.
All of my Dual parts are listed, and can be found by searching my other listings for "Dual." If you don't see it listed, I don't have it. Unfortunately I am not a turntable expert and can't provide any tech support for these.
US shipping and handling is $6, and international is $20, no matter what quantity you buy. All my small parts are set up for combined shipping, so just use the "add to cart" feature and then check out all at once, and it will combine shipping. If you have any questions, please ask.
I have many more Dual parts and other vintage electronics listed--feel free to take a look!