3271, 41-806, 41-825, 7092, 7100, 7318, 7968, APP5224, APP5503, BKR6EGP, CHP7318, E3.56, IK16TT, PK16TT, PZFR6F-11, RC12PMPB4, ZFR6FGP. Featuring exclusive Heat-ActiveTM alloy, platinum fine wire center electrode and platinum pad ground electrode provide maximum life and sharper spark focus.