Can the harmonic balancer BOLT be reused on 2017 buick verano 2.4L or is it a one time use..I am hearing conflicting info on this.

Thanks

You can but best to use new.

My problem was that the mechanic said that he can't complete the job because of this and I really want this job to be done now. I found one at the dealers so I will get it and have him complete it so I can have my car.

That will work. Most shops can get the things they need. Not sure why he'* sending you to get the part he needs.