Power steering mount

[cabinetmkr39]

Volvo Penta 5.0 GXI 2006 . Been chasing a belt issue for many seasons. I’ve replaced or had mechanic replace everything that touches the belt. Just had mechanic replace my power steering pump and pulley. Belt now squeals when power is added. My last item to replace is PS mount. Is this item readily available? Anyone know the part number?
Btw is there any chance my VP tensioner's are bad in one season ? Very frustrating.