Bolt on Triggerwheel on stock damper on M104 engines
Trigger wheel suite M104 engines with M6 and M8 pulley wheel bolts.
 
 
Outer diameter 155mm 
Thickness 5mm
36 tooths
Fixholes match up with stock holes
Possible to use normal socket trough inner hole for crank pulley bolt
 
Just bolt it on and grind away the tooth at wanted  calculation position   
 
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