Report Are these Spark Plugs right for my 99 V8? in Engine/Ancilliaries Posted September 24, 2007 The spark plug on the right came off the vehicle (NGK BKR6EKC), and the one on the left was sent to me as replacement (NGK BKR6EIX-11). Can I use these plugs? Thanks in advance: I have them in my car. You're good to go.