Yes, the compressor main seal. Are these parts an A/C specialist would have (usually) or only a Mercedes Dealer or specialist would have?

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Thanks,

Joey

'88 560SL Pearl Black/Java 152K
'94 E320 Anthracite/Grey 89K


Previously:
'94 E420 Black/Bamboo
'90 300E
'71 280SEL 4.5