A 9004 bulb will not physically fit in a H4 shell and vice versa.

H4s are available at most auto parts stores - in not, then they are only a
few days away from vendors like me and other fine vendors on the list.

David Marshall

Fast Forward Automotive Inc.
4356 Quesnel-Hixon Road
Quesnel BC Canada  V2J 6Z3

http://www.fastforward.ca    mailto:sales@fastforward.ca
Phone: (250) 992 7775        FAX: (250) 992 1160

- Vanagon Accessories and Engine Conversions
- Vanagon, Transporter and Iltis Sales and Importation
- European Lighting for most Volkswagen models

Due to the large volume of email  we  receive,  PLEASE  include  previous
emails when responding.  This will allow us to read the complete dialogue
in one message and will result in quicker and more  accurate  responses.

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf
Of Townsend, Michael D
Sent: April 27, 2004 4:14 PM
To: vanagon@GERRY.VANAGON.COM
Subject: E-codes w/ 9004 bulbs?

Thanks to Fastforward's informative Vanagon halogen light wiring
conversion info sheet, I see that the electrical socket for the European
H4 bulbs is different from the North American 9004 bulbs.  If I wanted
to avoid cutting the existing sockets in my van and soldering in H4
sockets, can I simply install the 9004 bulbs into the square E-code
fixture, or are the mechanical attachment dimensions different?  I
realize the H4 bulbs may be superior than the 9004 bulbs, but it sure
would be a pain to not be able to purchase a replacement at any FLAPS
should the need arise because they don't stock H4 and also be prevented
from using 9004's.

Thanks,
Michael