1N0018110, 21025102, 2240150Y04, 22401KA290, 3926, 41-627, 41-808, 5424, BKR4E-11, E3.48, FR5LS, GRP52, IK16TT, K14PR-U11, NGK5424, PK16TT, SE3926DPL, SP-424, XST3926DP. The Exclusive 90 Deg Designed Nickel Center Electrode of the NGK V-Power Spark Plug Produces the Spark at the Electrode's Edges.