Arnold FirstFire 5/8 In. 4-Cycle Spark Plug

Arnold

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Consistent starts, dependable performance, superior fouling resistance. Replaces Champion Model No. RC12YC and RC14YC. Replaces NGK model No. BCP4ES-11, BKR4E, BKR4E-11, BKR4EIX, BKR5E, BKR5E-11, BKR5EIX, BKR5EK, BKR5ES, BKR5ES-11, BKR5EY-11, BKR5EYA, BKR5EYA-11, BKR6EKB-11, FR4, FR45, and FR5. Replaces Autolite Model No. 3924 and 3926.

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