I heard this can be done but have not tried it. The differences are that the 924 switch has ony one rider for the horn and has the 4 and 5th wires swapped in the loom. I do not think this matters as those two are bridged when the left turn signal is applied.
Any body tried It?

I bought a 924 switch and installed it about 9 years ago. It works great but I can't remember what I had to do. I seem to recall trimming some of the plastic wire channels off that weren't needed or didn't fit. It took a little work but it eventually fit. I realize I'm not much help here but it WILL work.
Cheers, Elliot

Yes you can... I wrote this about 14 years ago.

http://www.pelicanparts.com/techarticles/9...tric_washer.htm

Karl,
Thanks but that is for the wiper switch not the turn signal switch.

Elliot,

The connector seems to be the same on the one I have.
But if you did it I guess it works.

Bruce

LOL...

Time for me to stop drinking my Scotch for the night.

You can hit me with this now!

Yes you can... certain years.

According to Jeff Bowlsby's spreadsheet

https://bowlsby.net/914/Classic/zTN_Gen_914...Interchange.xls

It shows...

Part Name VW/Porsche Part Number Bosch Part Number Porsche 914 Other vehicles using the same part number [SPN substitute part number]
Turn signal switch 311.953.513B 1970-71 VW 1968-70 Beetle/Ghia, VW Type 3 68-69
Turn signal switch 111.953.513C 1971 VW 1971 Beetle
Turn signal switch 914.613.913.14 1972-74 VW 1972-79 Beetle, Porsche 1976-80 924 [SPN 111.953.513F]
Turn signal switch 914.613.913.15 1975-76 VW 1975-76 Rabbit, VW 1972-79 Beetle, Porsche 1977-81 924 [SPN 111.953.513F]

And if you have a copy of Hussey's "Tech Tip 700", there's info about it in there.

Just FYI that book says the 1975-76 switches do not interchange with any other year 914 but are a direct swap for 1977-81 924's. Don't see any other notations for other years related to the 924 switch. Something else I didn't know!

Sorry Bruce. I think mine was a wiper switch as well. DOH!! I haven't been drinking scotch, I just can't remember much from 9 years ago.