Windshield Wiper Nozzles

1969 Mustangs and the 69-70Shelby windshield wiper nozzles have two holes in the nozzle head and were plated yellow zinc dichromate. 1970 Mustang windshield wiper nozzles had one hole in the nozzle head and were plated olive drab. Both years used the same soldered on mounting bracket with a large K stamped on the flat surface facing out. The 1969 version stayed in production until September 2, 1969 according the Master Parts Catalog. This means if you had an early 1970 Mustang the 1969 style nozzle can be correct. We will never know when each factory ran out of the 1969 nozzles and started to use the 1970 nozzles.

What's An Olive Drab Finish?

Olive drab is not paint. Its a dichromate chemical conversion finish similar to yellow dichromate. Dichromate is applied after the part is plated with zinc. Yellow dichromate will not show signs of rust until it’s exposed to 96+ hours of constant salt-water spray. Olive drab dichromate will last 150 hours before rusting.

How to Restore Them?

Find a plater that can do yellow zinc dichromate (1969) or olive drab (1970). Make sure you clean the nozzles holes good before you have them plated so the chemicals flow freely threw them. When you get them back from the plater clean the nozzles out again to remove any residual acids used in the plating process.