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Old Mar 24, 2015 | 06:59 AM
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ala_xfire
Senior Member
Joined: Dec 2010
Posts: 12,780
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From: Lineville, AL
Default Re: difference between these two tb #s????

You want the 113, not the 112 :
Mercedes#A1131410125/Bosch#280750017
And yes, you need a Viton O ring.

Genuine Mercedes Benz Throttle Body O Ring Gasket 305 997 03 45 | eBay
 
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