Popular Spark Plug for Ryobi 2 Cycle products
Thread:14mm
Reach: 12.7mm (1/2")
Hex Size: 13/16" (20.6mm)
Gap: .035" (0.9mm)
Heat Range: 5
Replaces: AC Delco: 422Z, 44F, 45F, 46F, M45FF, S44F*, S45F
Autolite: 2656, 415, 416, 535
Bosch: W8A, W8A0, W8AC, W8AP, W9AC, W9AC0
Champion: 896, L288, L90, L90C
Denso: W16FS, W16FS-U, W16P-U
MotorCraft: AE4, AE4X, AE6, AES4C, AV4