Piaggio 825430 Flywheel Magneto Fan - Vespa LX/LXV/S/ET4, Liberty, Fly, Typhoon and Skipper 125-200 4T

The Piaggio 825430 flywheel fan is an original Piaggio Group replacement part that cools the Group's 125, 150, and 200 4T forced-air engines: Vespa LX, LXV, S, and ET4, Piaggio Liberty, Fly, Skipper, Zip, Typhoon, and X8, Aprilia Mojito, Sport City ONE, and SR Motard. It is the black plastic impeller keyed onto the magnetic flywheel that pushes air into the shroud: if it cracks or loses a blade, the engine will overheat. This is an inexpensive replacement part that, if neglected, can lead to much more costly damage.

✓ Strengths

• Original Piaggio Group replacement part – code 825430, the same as fitted during production
• Impeller with curved radial blades made of molded black plastic, with a reinforced central hub (observed from product photograph)
• Two metal inserts embedded in the hub for attachment to the flywheel (observed from product photograph)
• Standard balancing – an original fan does not introduce vibrations to the flywheel
• One code for the entire Leader 125-200 family – Vespa, Piaggio, and Aprilia
• Direct mounting – replaces the existing fan without adaptations

Technical specifications

Vehicle compatibility

List taken from the official Piaggio spare parts catalog (B2B). If your vehicle is not in the table, please send us the chassis number before ordering.

Who it's perfect for

This is the part for anyone who has opened the flywheel cover for a service or to replace the stator and found the fan cracked around the hub—this often happens on vehicles with many years and many starts. It is also the choice for those who have noticed the temperature rising in traffic or a new hum from the right side of the engine. It's inexpensive, can be replaced while the engine is already open, and fits identically on an entire generation of Group scooters: from the Vespa LX to the workhorse Liberty, from the Fly to the Aprilia Mojito.

Frequently Asked Questions

Is it suitable for my scooter?
It covers the Group's 125, 150, and 200 4T air-cooled models: Vespa LX, LXV, S, and ET4, Piaggio Liberty, Fly, Skipper, Zip 125, Typhoon 125, and X8 125-150, Aprilia Mojito, Sport City ONE 125, and SR Motard 125. The table above lists exact versions and years from the official Piaggio spare parts catalog.

How do I know if the fan needs to be replaced?
Visually inspect: look for cracks starting from the hub or between the blades, chipped or missing blades, or an ovalized hub. When the engine is running, symptoms include a new humming or whistling sound from the right side and rising temperature in traffic.

Is it original or an equivalent?
It is an original Piaggio Group replacement part, code 825430. It is not an aftermarket part: the balancing and keying are original equipment.

Does the package also include the flywheel?
No, only the fan is purchased. The magnetic flywheel, stator, shroud, and screws are separate replacement parts.

Can I install it myself?
You need to remove the side bodywork and the shroud, then block the flywheel to unscrew the fan screws. With the right tools, it's a job within the reach of experienced individuals; otherwise, it's a quick and inexpensive task to have done at a workshop.

Is it worth replacing it during another service?
Yes. If you are already opening the flywheel side—for the stator, flywheel, or an overhaul—replacing an old fan costs very little and avoids having to reopen everything later.

Data sources: official Piaggio spare parts catalog (B2B) for the code and vehicle list; official product photograph for material, color, and construction; specialized retailers for price and availability comparison.