With a low price like this, for such a high quality Chain Case
Cap, it really is not worth trying to rejuvenate the old, possibly scuffed and damaged
Cap.
For other related parts for your classic Cub, check the schematic for your model and ensure you order all the parts you need to complete your task perfectly.
You may wish to consider these alternatives:
40545001000
40545001000B
40545001000XL
40545001000ZA
40545001000ZB
Renewing this part is a lot easier than trying to refurbish the old item. Add as many items as you wish to your shopping cart, new fasteners for example, and pay just one fixed price shipping cost.