Headlight Bulb

Are the 9003 and H4 bulbs the same bulb with different names? I though I heard someone say this but I am unsure.
Can someone clarify...

 

Don't think they are the same.. they have different connectors.

 

Actually they are. 9003 is the North American designation. H4 is the Japanese. (Maybe euro too)

Had to figure all that out when I got my Silverstars since they ordered the wrong set when I asked for H4.

 

Nice work! I learned something new today. Not very often that happens.

 

i have never even seen a 9003 anywhere - even canadian tire - always been H4

 

thats why I was wondering because I saw the silverstars and wasn't sure what was going on.

 

Yeah, CT always had H4's in generic bulbs which confused me too. Maybe its just the US that uses 9003.

9003's definitely fit in my Civic though. Decent bulbs. Much better than stock. (HID or even HID like they're definitely not, but I wasn't going for looks, just better output)

Mighty Muffler gets them for $73/pr same day.

 

the Honda part # for them is CH9003 which fit civics and CR-V's but we also call them H4 bulbs as well.