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I have a 2009 Mazda 2 Sport. Recently passengers side headlight bulb has blown. I went to Halfords and bought the correct bulb, a "477SB H7" 12V, 55W Super Brilliance.

Image of base: enter image description here

I then went to fit the new bulb and noticed the old bulb was significantly larger. It is stamped with "H4 12V60/55W (E8) 3G6".

Image: enter image description here

I then looked at the drivers side bulb and saw that it had the smaller bulb, like the new one I just bought. However it seemed to have some kind of adaptor: enter image description here

What is this adaptor that I am missing from my passengers side?

Both bulbs side by side: Both side by side

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  • What does the harness connector look like?
    – Ben
    Nov 2 '16 at 23:34
  • @Ben it's a 3 prong, exactly like the reverse of (female for) the old bulb.
    – Tom Bowen
    Nov 3 '16 at 8:36
  • was the harness repaired? it sounds like someone did a repair and put the wrong end on
    – Ben
    Nov 3 '16 at 16:21
  • @Ben I don't think so. And the harness is the same on the other side.
    – Tom Bowen
    Nov 3 '16 at 16:40
  • SO YOUR LOOKING FOR THIS?
    – spicetraders
    Nov 5 '16 at 22:29
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Your third picture shows a black plastic adapter that you identify as missing from the one side.
And I assume your able to use the lamp and adapter from the side it was install in on the other side.
If so then you should find that the part missing Mazda 3 headlight bulb retainer can be found as new old stock Dorman part number WX-6255671.

adapter

The issue you may face is I have not successfully found that part number in the current 2016 Dorman catalogs so it may be discontinued.
In which case your ability to obtain one would be NOS on a part dealer shelf or a junk yard.

Maybe in stock here at this time

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