We custom milled these replacement arm collars from 7075 military grade Aluminum. It is screwed down on top of the module inner sleeve to compress the clutch rings and stiffen the arm swing. The original collar had a small white plastic clutch ring. We sell some properly sized O-rings to use for that same function.

Fits only the Fender Contemporary System 1 tremolo found on Made in Japan (MIJ) Stratocasters, Telecasters and Squires that were made between 1985 and 1987.

Weight: 0.048 oz
Units in box: 1
Parts by Make/Model > Fender Parts > System 1 - Japan