14mm thread Dia, 3/4 in reach, 5/8 in hex socket. Saves on fuel and reduces emissions. Replaces Champion RC12YC, RC14YC. Replaces NGK BCP4ES-11, BKR4E, BKR4E-11, BKR4EIX, BKR5E, BKR5E-11, BKR5EIX, BKR5EK, BKR5ES, BKR5ES-11, BKR5EYA, BKR5EYA-11, BKR6EKB-11, FR4, FR45, FR5. Replaces Autolite 3924, 3926, 5224, AP3924, APP3924, AP5224, APP5224, XP3924, XP5224, XST3924, ZST3926.
Unit: CD