Genuine Champion replacement part. Thread: 14mm, Reach: 19mm, Seat type: flat, Hex size: 16mm, Tip configuration: extra projected, Type: Standard, Terminal type: Solid, New, Bulk Packed. Genuine Champion Spark Plugs. Consult owners manual for proper part number identification and proper installation. Please refer to list for compatibility. Includes (8) Spark Plug. Thread: 14mm, Reach: 19mm, Seat type: flat, Hex size: 16mm, Tip configuration: extra projected, Type: Standard, Terminal type: Solid, New, Bulk Packed. Genuine OEM Replacement Part # RC12LYC-8PK. Consult owners manual for proper part number identification and proper installation. Please refer to list for compatibility. Compatible with the Following: