Spark Plug Types
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I've decided to compile a list of spark plugs and related part numbers for those people who want to know what the best plugs would be to use (in ascending order) when considering a service to their own Corolla.
3K/4K/4K-C - Spark Plugs
NGK - BP5EY Denso - W16EXU-1 AC Delco - 43XLS
4AGE - Spark Plugs From 1986-88
NGK - BCPRE5-11 (1.1mm Gap) AC Delco - FR2LS
4AGE - Plugs From 1989 onwards
NGK - BKR6EP-8 (0.8mm Gap)