NGK Spark Plug for Ducati 999 & 999S 2003-2005. CR9EB also fits Husqvarna, MV Agusta, MZ & Piaggio.
Ducati 999 Pilot Light (53620022A) | Baboon Motorcycle Parts
Spark Plugs for Ducati 999 R for sale | eBay
Hazet 4766 5/8 in. (16 mm) 3/8" Spark Plug Socket | 3/8" Single Sockets | Range of 3/8“ Sockets | Range of Sockets | Hand Tools | Hazet | Tools by Brand | Jens Putzier Tools
Spark Plugs for Ducati 999 R for sale | eBay
998 - Champion Spark Plugs Changed? | Ducati Forum