Thread: What size allen wrench on block heater plug?
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  #18  
Old 10-25-2004, 10:45 AM
Brian Carlton Brian Carlton is offline
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Location: Blue Point, NY
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Quote:
Originally Posted by mplafleur
If you can fit a 3/4 inch allen inthe socket, then use it. 19 mm is .748 inches, so 3/4 inch is slightly bigger. Always go for the snugger fit.
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