2000 Volvo Penta 5.7 GS Power Steering Pump

[CascoBay]

I need to replace the power steering pump on my 2000 Volvo Penta 5.7L GS due to a leak at the reservoir, and I was wondering if I can just go to an automotive store and buy an automotive equivalent (GMC Truck with a 5.7L for example)?

Thanks for the help!