The filter will replace the following part numbers01Z525558. Not to be confused with Gen 2 Haldex differencial which is on the crossover. A1 8X Quattro [2010-2018]Engine Code(s): CDLH. A3 8P Quattro [2003-2012]Engine Code(s): BUB, BWA, CBAB, CBBB, CCZA, CDAA, CDLA, CDLC, CFFB, CFGB.
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