Got a NOS Total Super bar. Its the 14mm mount to fit the 123-143, 144-153 and 166 saws. It will also fit the Poulan 5500, 6000 and S6000. I'm guessing from the numbers they call it a 21" but it is the same length as a 20" Husky bar. Its .058 3/8's. It can be easily modified to fit the 14mm Stihl saws It of course has shelf wear and one spot of staining. Very hard to find bar. $50 is what I want for it and I'll pay up to $10 for shipping.