The KTM 350 EXC-F uses a 5008 or 232 bulb size for both front and rear turn signal applications. The replacement chart covers 2012 to 2019 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 5008 is the most frequently specified bulb across both front and rear turn signal positions on the KTM 350 EXC-F, appearing in the majority of model years listed in the specifications.
The 5008 is a single-filament, 12V bulb with a BA15s bayonet base and is classified as a lower wattage variant of the 1156 under the ANSI standard used in the US and Canada.
The 232 is a 12V, 3W festoon bulb with an SV8.5 base, also conforming to the ANSI standard for the US and Canada.
A festoon bulb, such as the 232, is a cylindrical lamp that makes contact at both ends rather than through a base socket, which makes it physically and electrically incompatible with the BA15s bayonet socket used by the 5008.
The front turn signal on the KTM 350 EXC-F uses the 5008 for the 2017-2019 model years and the 2012 model year, while the 2013 model year specifies the 232 instead.
The rear turn signal follows an inverse pattern, with the 232 specified for the 2012 model year and the 5008 specified for 2013 and 2017-2019.
In 2012, the front and rear turn signals do not share the same bulb type, with the front requiring the 5008 and the rear requiring the 232, meaning the two positions are not interchangeable that year.
The same non-interchangeable relationship exists in 2013, where the front requires the 232 and the rear requires the 5008, reversing the 2012 configuration.
For the 2017-2019 model years, both the front and rear turn signals specify the 5008, making the bulb type consistent across both positions during that period.
Because the 5008 uses a BA15s bayonet base and the 232 uses an SV8.5 festoon base, neither bulb is a drop-in substitute for the other regardless of voltage compatibility.