The Sanwa 107A53691A upper case is a basic, well matched component intended for hobbyists who need to replace or service parts on SRG and HVS servos. The casing is manufactured to slot onto the servo snugly, helping keep movement smooth and reliable during normal use.
This upper case is made specifically for Sanwa SRG and HVS models, so it is a handy spare for owners of those servos. Its straightforward design helps speed up replacement so you can spend less time in the workshop and more time on the track or trail.
Before fitting the new upper case, check that the servo internals and surrounding parts are clean and clear of grit. Line the case up carefully on the servo body and tighten screws gradually and evenly to avoid any binding. Regular checks after fitting will help protect the servo over time.
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