Champion QL77JC4 (828M) Copper Plus Small Engine Spark Plug, Pack of 8 Includes (8) Spark Plug Thread: 14mm, Reach: 12.7mm, Seat type: flat, Hex size: 21mm, Tip configuration: non 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