Dayco `PANTHER` patented graphite ( self lubricating ) parabolic tooth profile, eliminates trapped air which results in a smoother quieter running. Double nylon cover with special stiflex fiber for extra strength.

As with all belt manufactures ...there will NOT be any warranty returns
as they will not except any returns due to varied fitment  conditions  beyond their control
Belt tension setting tools & alignment equipment are available.

 It is always best to understand why it needed replacement in the first place ....as the life of the belt will be shortened.
If there is an ongoing problem for example, if you have a worn or damaged front or rear pulley, or a misalignment between them.
Check your Lower Belt guards actually do prevent stones from entering between pulley & belt and punching through,
and that the correction tension is applied.