A known failure item is easy to replace with hand tools. No biggie. Mine blew out at 70K miles or so making it a not too often repair. There are two part numbers, one for Varioram engines 1996-1998 (993 993,106.403.00) one for the earlier non-Varioram engine, pre-1996 (964.106.403.02). The one pictured above is the Varioram installed version. When replacing, it is very important to remove any rubber fragments from it bursting from the engine bay and behind/below it on top of the cylinder fins so nothing gets ingested into the fan, melts or burns on the cylinders, or interferes with the belts or their pulleys.
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