Ducati Supersport 900 (1991-1998)
Ducati Supersport 800 (2003-2007)
Ducati Supersport 750 (1991-1998)
Ducati Supersport 620S (2003)

Ducati Monster 900 (1993-2002)
Ducati Monster 800 (2003-2004)
Ducati Monster 750 (1997-2002)
Ducati Monster 620ie (2002-2006)
Ducati Monster 600 (2001)
Ducati Monster 400 (2005-2008)

Not for Monster S4 

Ducati Sport 750 (1988-1990)
Ducati Sport 800
Ducati Sport 620S (2003)
Ducati MH900e

Note: Some spark plug wire relocation may be required. Proceed accordingly.