Aftermarket Replacement CDI to fit Aprilia, Gilera and Piaggio 125cc Models

Note: This is for bikes that are NOT fitted with a Factory Immobilizer.

Please check the part numbers on your existing CDI carefully.

For reference, this CDI unit replaces:

Magneti Marelli ACI500.01  /  ACI501.01  /  ACI503.01  /  ACI504.01

EFI Technology AC1  /  AC2  /  AC5  /  AC8

If the part number on your CDI does not match one of these part numbers exactly, this is not the correct CDI for your scooter.
Please see the second picture for an example part number on an original CDI.


Scooters often fitted with this CDI unit:
  • Aprilia SportCity 125cc / 200cc
  • Aprilia Atlantic 125cc
  • Aprilia Habana / Mojito / Custom 125cc / 150cc
  • Gilera DNA 125cc, 180cc, 200cc
  • Piaggio Skipper ST 125cc

May also be fitted to other Piaggio / Gilera / Aprilia 125cc / 150cc scooters from the late 1990's up to around 2008.

Compatible part numbers for reference:

- 486065
- 486071
- 486072
- 58100R
- 639347
- 832139
- 827821

This is a brand new aftermarket replacement part.