I have a bunch of these used relays available...$10 ea + $5 Priority Mail box. Paypal accepted, send me an email if you want one or more. The different part numbers are interchangeable and all came out of 914s. All are Hella or Bosch.

TBB264DB
TBB444DB
TBB3RWBG
896317 (813906064?)

Other parts available, I frequently update my Parts FS webpage with newly available parts so check it regularly: http://bowlsby.net/914/PartsFS/