BMW Motorcycle G450X turn signal bulbs utilize a 232 and 5008 size specification for both front and rear positions. The replacement chart covers 2008 to 2010 production years with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The BMW Motorcycle G450X uses two bulb types across its front and rear turn signals for the 2008-2010 model years: the 232 and the 5008, both of which conform to ANSI standards for the US and Canadian markets.
The 232 is a festoon bulb, meaning it is cylindrical in shape and held in place at both ends by spring-loaded contacts rather than a base socket. It operates at 12V with a rated output of 3W and uses an SV8.5 base.
The 5008 is a single-filament bulb with a BA15s bayonet base, which uses a twist-and-lock mounting style common in automotive applications. It operates at 12V and is classified as a lower wattage variant of the 1156 bulb type.
Because the 232 and 5008 use fundamentally different mounting systems, a festoon socket and a BA15s bayonet socket respectively, the two bulb types are not interchangeable with each other.
On the G450X, the front turn signal for 2009 uses the 5008, while the 2008 and 2010 model years use the 232, indicating that the same position on the motorcycle does not share a single bulb type across all three years.
The rear turn signal follows an inverse pattern relative to the front: the 2008 rear position uses the 5008, while the 2009 and 2010 rear positions use the 232.
For the 2009 G450X specifically, the front and rear turn signals take different bulb types, with the front requiring a 5008 and the rear requiring a 232, so the two positions are not served by the same replacement bulb.
For the 2008 G450X, the same split applies in reverse, with the front turn signal requiring a 232 and the rear requiring a 5008.
The 2010 G450X is the only model year in these specifications where both the front and rear turn signals share the same bulb type, the 232, across both positions.