Because there are different suppliers some pulleys that are pressed on, do not necessarily belong to the appropriate vehicle. They may needed to be replaced.
There are special tools for removing and replacing the pulley.
9995737, 9995444
Under no circumstances should the pump be placed under a hydraulic press to remove the pulley.
If this were to take place, the pulley would fall out of its housing!

Product information
Important! Make sure to flush/rinse the entire P/S system from defective material and refill with correct P/S liquid
when installing new power steering pumps and power steering racks.

Fits these cars:

Volvo 850 2.0 06.91-12.96
Volvo 850 2.0 08.94-12.96
Volvo 850 2.0 Turbo 08.93-12.96
Volvo 850 2.3 T5 08.93-07.96
Volvo 850 2.3 T5-r 08.95-01.97
Volvo 850 2.5 06.91-07.94
Volvo 850 2.5 08.91-01.97
Volvo 850 2.5 08.94-12.97
Volvo 850 2.5 Tdi 08.95-12.96
Volvo 850 Kombi 2.0 02.93-12.96
Volvo 850 Kombi 2.0 08.94-01.97
Volvo 850 Kombi 2.0 Turbo 02.93-12.96
Volvo 850 Kombi 2.3 T5 02.93-12.96
Volvo 850 Kombi 2.3 T5-r 08.95-01.97
Volvo 850 Kombi 2.5 Awd 04.96-12.96
Volvo 850 Kombi 2.5 08.92-07.94
Volvo 850 Kombi 2.5 08.94-12.97
Volvo 850 Kombi 2.5 09.92-01.97
Volvo 850 Kombi 2.5 Tdi 08.95-01.97
Volvo C70 I Cabriolet 2.3 T-5 03.98-
Volvo C70 I Cabriolet 2.5 06.98-
Volvo C70 I Cabriolet 2.5 T 03.98-
Volvo C70 I Coupé 2.0 T 03.97-09.02
Volvo C70 I Coupé 2.3 T-5 03.97-09.02
Volvo C70 I Coupé 2.5 T 03.97-09.02
Volvo S70 2.0 01.97-11.00
Volvo S70 2.0 01.97-11.00
Volvo S70 2.0 Turbo 01.97-11.00
Volvo S70 2.3 T-5 01.97-11.00
Volvo S70 2.3 Turbo 01.97-11.00
Volvo S70 2.4 01.97-11.00
Volvo S70 2.4 08.99-11.00
Volvo S70 2.4 Turbo 01.97-11.00
Volvo S70 2.5 01.97-11.00
Volvo S70 2.5 06.98-11.00
Volvo S70 2.5 Bifuel 10.98-11.00
Volvo S70 2.5 Tdi 01.97-11.00
Volvo V70 I Kombi 2.0 01.97-03.00
Volvo V70 I Kombi 2.0 01.97-03.00
Volvo V70 I Kombi 2.0 01.97-03.00
Volvo V70 I Kombi 2.0 Turbo 01.97-03.00
Volvo V70 I Kombi 2.3 T Awd 04.97-03.00
Volvo V70 I Kombi 2.3 T-5 01.97-03.00
Volvo V70 I Kombi 2.3 T-5 Awd 01.97-03.00
Volvo V70 I Kombi 2.3 Turbo 01.97-03.00
Volvo V70 I Kombi 2.4 01.97-03.00
Volvo V70 I Kombi 2.4 08.99-03.00
Volvo V70 I Kombi 2.4 Turbo 01.97-03.00
Volvo V70 I Kombi 2.5 Awd 03.99-03.00
Volvo V70 I Kombi 2.5 01.97-03.00
Volvo V70 I Kombi 2.5 06.98-03.00
Volvo V70 I Kombi 2.5 Bifuel 10.98-08.99
Volvo V70 I Kombi 2.5 Tdi 01.97-03.00
Volvo V70 I Kombi 2.5 Turbo Awd 01.97-03.00

This part replaces part no 9139564, 8603048, 3546907, 3546383