Thread: Pulled the Bosch Plugs, no number on them
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  #3  
Old 11-15-2004, 09:58 PM
manny manny is offline
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Join Date: Feb 2003
Location: Ontario, Canada
Posts: 3,160
It is common for Bosch Platinums to have their number ( could be just a 4-digit number ), " engraved " on the metal shell, NOT on the ceramic insulator.
When in doubt, get your vendor to look up the proper plug in his Bosch catalogue.
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