Suspect the only folks who would know the answer to the question of compatibilty would be a Volvo Penta agent or VolvoPaul. !
Only sure fire way would be to get part numbers but no part numbers listed on any web sourced exploded diagrams, only the legend obsolete out of production.
Searching through paperwork work for MS4B gearbox that was replaced in boat around 15 years ago...
Part No 853375-4
Part No 853376-2 Drevsat ???? comes up.....