I don't know the sizes, but I can tell you there are 2 different sizes depending on the year. Sometimes MB parts guys don't get this right. For that reason, you may be better off if you can take the center bolt to the o-ring supplier and match it up. Also, on the earlier years, there is a copper washer to be replaced along with the o-ring(s).

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Palangi

2004 C240 Wagon 203.261 Baby Benz
2008 ML320 CDI Highway Cruiser
2006 Toyota Prius, Saving the Planet @ 48 mpg
2000 F-150, Destroying the Planet @ 20 mpg



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