The Ducati Monster 900 front and rear turn signal bulbs utilize a 232 or 5008 size. The replacement chart covers vehicle production spanning 1997 to 2002.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Ducati Monster 900 front and rear turn signals use two bulb types across the 1997-2002 model years: the 232 and the 5008, both conforming to ANSI standards applicable in the US and Canada.
The 5008 is the more frequently specified bulb across both front and rear positions on the Monster 900, appearing in the majority of model year and position combinations within the 1997-2002 range.
The 5008 is a single-filament bulb with a BA15s bayonet base operating at 12V. It is a lower wattage variant of the 1156 bulb, meaning the two share a base type but are not wattage-equivalent and are not directly interchangeable without consideration of that difference.
The 232 is a festoon bulb with an SV8.5 base, rated at 12V and 3W. Its festoon form factor and SV8.5 base are physically distinct from the BA15s bayonet base of the 5008, making the two types mutually incompatible in any given socket.
The front turn signal on the Ducati Monster 900 uses the 232 bulb for the 1999 and 2002 model years, while the 1997-1998 and 2000-2001 model years use the 5008.
The rear turn signal on the Monster 900 uses the 232 bulb only in the 1997 and 2002 model years. The 1998-2001 model years use the 5008 in the rear position.
In the 2002 model year, both the front and rear turn signals use the 232 festoon bulb, making it the one year where both positions share the same bulb type.
The front and rear turn signals do not always share the same bulb type within a given model year. The 1999 model year, for example, uses the 232 at the front and the 5008 at the rear, requiring two different bulb types for a single vehicle.