Includes (2) Spark Plug. Type: Resistor, Reach: 11.6mm, Seat Type: Tapered, Gap: .040", Heat Range: 15, Thread 14mm, Hex Size 5/8", New, Bulk Packed. Genuine OEM Replacement Part # RV15YC4-2PK. Consult owners manual for proper part number identification and proper installation. Please refer to list for compatibility. Compatible with the Following: KOHLER: KT17, KT19, KT21, CUB CADET: 682, 782