Thread: '91 300CE spark plug recommendation?
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Old 03-09-2011, 07:38 AM
Ferdman Ferdman is offline
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Location: Southeastern PA
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JohnM., your 1991 300E with a 103 engine calls for a Bosch H9DCO spark plug. Whereas, a 1991 300CE with a 104 engine calls for a Bosch F8DC4 spark plug. At least per the database of the online parts supplier I frequently use.
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