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Thread: crankshaft seal

  1. #1
    Join Date
    Jun 2014
    Brisbane, Queensland
    Users Country Flag

    crankshaft seal

    Wondering if anyone knows if part numbers 021 103 051A and 021 103 051C are interchangeable? My engine code is BDE and 02M transmission.

    The first link shows:
    021 103 051C VAG
    021 103 051A VAG

    Dimensions are the same for both.

    But second one "C" is "left hand twist" with arrow pointing left

    First one "A" doesn't specify direct of twist.

    The one in my car is "A" and has no arrow.

    This parts diagram for 2003 4 Motion BDE engine also shows "C"


  2. #2
    Join Date
    May 2006
    Adelaide South Australia

    I have no knowledge of the Mk4 engine but the suffix on the part no. in my experience indicates a later/modified/improved design.
    If it was mine, I would install the later 'C ' part.
    Understand how it works, troubleshoot logically BEFORE replacing parts.
    2001 T4 TRAKKA Syncro 2.5TDI,2006 Mk5 2.0TDI Golf manual,2001 Polo 1.4 16V manual [now sold], '09 2.0CR TDI Tiguan manual,
    Numerous Mk1 Golf diesels

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