Bosch part number 0 301 064 121 is the left H4 aero headlight on my '87 4kscq. Part 0 301 064 122 is on the right side. HTH, - DJ > Also keep in mind that Metrix only supplies Bosch headlights. And Bosch > doesn't make a H4/H1 headlight for the 85-87 4kq. Those lights are made by > Cibie and Hella. > > So Craig, you are barking up the wrong tree with Metrix. > > HTH, > -S