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Hello
I drive 2002 mercedes benz slk r 170 230k 197psm 111engine.
I am trying to buy crank pulley tuning kit from germany. They want the diamater from me.
Is there anybody out there to tell me the diameter for crank pulley?
I want to know exact size before i compelte my order.
Help! Thank you
 

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Premium Member 2002 SLK230K
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Welcome from New Hampshire

Not sure what the size is, best bet would be contact your dealer with the VIN and get the size.
 

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Administrator 2009 SLK 55 AMG/Founding Member 2006
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95,000 Posts
Hello
I drive 2002 mercedes benz slk r 170 230k 197psm 111engine.
I am trying to buy crank pulley tuning kit from germany. They want the diamater from me.
Is there anybody out there to tell me the diameter for crank pulley?
I want to know exact size before i compelte my order.
Help! Thank you
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Hi witch983,

We ordered ours from Speer in Germany and had to measure ours. It was easy to measure it. Ours was 185mm. But that doesn't mean yours is. I'm assuming you've had a gander and tried to measure it on the car?
 

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Factory outer pulley size is about 185mm measured from the top of the grooves. ASP for 2001+ is 8.4" (about 213mm). This change is only for the larger of the two rings that drives the supercharger and alternator. The ASP is a 15% increase in size.
 

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It is either 185mm or 192mm outside diameter. Try to messure under the bonnet and be sure you messure outside diameter.

On my 230 kompressor facelift 197HP it is 192mm OEM, you have the SC MP4 generation 4 and can increace to 222-225mm with okay stafety margin.
 
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