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Vespa ET4 125cc Immobilizer Bypass CDI. 1996 1997 1998 1999. (pre-LEADER)

Vespa ET4 125cc Immobilizer Bypass CDI. 1996 1997 1998 1999. (pre-LEADER)

Regular price £69.95 GBP
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Immobilizer Bypass CDI for early Vespa ET4 125cc / 150cc Scooters.

Removes the immobilizer from older Vespa Scooters (1996 – 1999)
After installing this CDI your immobilizer will be completely removed and deactivated.

UK Stock, warranty, Fast free shipping on UK orders. International customers welcome.


Simple Plug and Play replacement CDI that removes the Immobilizer from older Vespa ET4 125 and ET4 150cc Scooters.

Only suitable for the very early Vespa ET4 125cc / 150cc models, Circa 1996 to 1999, fitted with the pre-LEADER engine.

Very useful if you have lost your keys or the original immobilizer CDI has failed.


  • Vespa ET4 125cc / 150cc (1996 – 1999) (pre-LEADER models only fitted with the Magneti Marelli AEC 302c CDI unit )

Replaces the following CDI Part Numbers:

  • Magneti Marelli 294071
  • Magneti Marelli AEC302c
  • Magneti Marelli AEC 302c

Not suitable for the later Vespa ET4 scooter models with the LEADER engine from around the year 2000 onwards

NOTE: This CDI will bypass your scooters immobilizer. Once fitted the scooter will no longer have an immobilizer.

Any key that can turn the ignition barrel will start the scooter!


Remove the original CDI and bolt this bypass CDI onto the same mountings.

Plug the two 4 Pin Connectors into this replacement CDI.

Start the engine!

BRAND: CDI Ignition Technology
Replaces: Magneti Marelli AEC 302c ( AEC302c )

Fits Vespa ET4 125cc / 150cc 1996, 1997, 1998, 1999

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