Car Bulb Sizes – Typical Brake, Indicator, Side Light, Low Beam, High Beam Sizes
This is car bulb size guide is for my personal reference more than anything but I am making it public because I think by and large, many cars use the same types of bulbs.
If you want to be sure, then I recommend using an automotive bulb finder like this one from Ring
Bayonet Type Dual Filament Lights/Brake Light -P21/5W
Bayonet Single Filament Lights, Brake Light, Fog Light, Indicator (if not coloured) P21W
Bayonet Bulbs Amber Indicator PY2W
Bayonet Bulbs Red Brake PR21W
Bayonet Duel Filament Red Brake PR21/5W
Blade Type Sidelights Clear W21W
Blade Type Bulbs Dashboard (Possible 3rd brake light) Illumination Clear W5W
Headlight Bulbs Dual Filament ie High and Low Beam in Same Bulb H4
Headlight Single Filament H1 or H7
Foglights Bulbs Various
Wiki has an excellent page on bulb sizes here
