Arrangement of belt pulley/vibration damper - RA03001043422X(03-3422)
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1st version
Arrangement of vibration damper with integrated 6-groove belt pulley on secondary side.
Engine 104.98 up to 01/91
2nd version
Arrangement of 8-groove belt pulley on primary side of vibration damper. Thus improving quiet running of poly V-belt.
Engine 104.98 as of 01/1991
Engine 104.94/99 as of start of production up to 8/1993
3rd version
Modified central bolt.
Material strength modified from 10.9 to 8.8.
Conical washer replaces the 4 dished washers.
Modified tightening torque.
The different parts of the 3 versions must not be interchanged.
Engine 104.94/99 as of 09/1993
4th version
Belt pulley/vibration damper reduced in weight.
Hub integrated in vibration damper.
Engine 104.945/995 as of start of production