Based on my research I'm going to try the SKF seals. I noticed the part number is slightly different for the '11-'14 EC250 (KITG-48M) vs the '11-'14 EC300 (KITG-48M-B1). Any idea what the B1 means, and if there is a difference? My gut says to go with the B1 part since it's for the 300.
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