The Lamborghini Murcielago uses H21W bulbs for front turn signals and P21W bulbs for rear turn signals, with each size corresponding to specific lighting positions on the vehicle. The replacement chart covers 2001 through 2010 model years and documents bulb size specifications across the production range.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Lamborghini Murcielago front turn signal uses the H21W bulb across all listed model years, spanning 2001-2010.
The H21W is an ECE-standard single-filament signalling bulb rated at 12V and 21W, fitted with a BAY9s base.
The BAY9s base on the H21W features offset pins, which prevents it from being interchanged with bulbs using other bayonet base configurations.
The rear turn signal on the Murcielago uses the P21W bulb, which is also an ECE-standard single-filament signalling bulb rated at 12V and 21W.
The P21W uses a BA15s bayonet base, which is a different base type than the BAY9s found on the H21W, making the two bulbs physically non-interchangeable despite sharing the same voltage and wattage ratings.
Both the H21W and P21W carry ECE certification, indicating conformance to European and internationally recognized lighting standards.
Rear turn signal fitment data for the Murcielago covers model years 2001-2006, while front turn signal data extends through 2010.
The shared 21W output rating across both bulb types reflects a standard wattage level established for turn signal and stop light applications under ECE regulations.