| Number | Name | Brand | Fit |
|---|
| 92921 | Servo Saver Tube & Spring | Kyosho | direct |
| A221HB | Hard Servo Saver (ZX-5/ZX-5 FS/TF-5/RB5) | Kyosho | direct |
| LA221B | Servo Saver (ZX-5/ZX-5 FS/TF-5/RB5) | Kyosho | direct |
| LA221HB | Servo Saver (ZX-5/ZX-5 FS/TF-5/RB5) discontinued | Kyosho | direct |
| UM507 | Servo Saver Shaft Set (L/S/RB5) discontinued | Kyosho | direct |