When I search for belts for my Euro 500SL (1985) the part numbers come up with different sizes. For example, the power steering belts say 9.5 x 1100 but the part comes up as 10.0 x 1100. Are these interchangeable?

Steve

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Steve
1985 Mercedes 500SL Euro (Gray market)
1995 BMW 520i Euro (Gray market)
1992 BMW 525it Wagon
1994 Honda Del Sol Si