Piaggio 1A009598 Drive Belt – Vespa GTS and GTV 300 HPE, MP3 and Nexus

The Piaggio 1A009598 drive belt is the variator belt for the Piaggio Group’s 250 and 300cc 4-stroke 4-valve engines: from the 2005 Vespa GTS 250 to the more recent GTS and GTV 300 HPE models, as well as the MP3 250 and 300, Gilera Nexus, Piaggio X7, X8, X9, and X Evo, and Aprilia Atlantic and SR MAX. Official catalog name: "V-belt", Drive pulley table. Product code 1A009598.

✓ Key features

• Original Piaggio spare part – this is the standard production belt, supplied in the Piaggio Group sleeve, not an equivalent.
• The belt that determines your scooter's performance – the original design and cross-section maintain the variator gear ratio, ensuring the factory-standard acceleration, pick-up, and top speed.
• Toothed V-belt profile – the inner teeth allow it to flex around the variator pulleys while limiting overheating.
• Twenty years of range with a single part number – covers the Group's 250 and 300cc engines from 2003 to the current HPE models.
• Scheduled maintenance item – should be replaced at specified intervals along with the rollers and sliders; prevention is far cheaper than dealing with a belt snapping while riding.

Technical specifications

Vehicle compatibility

List taken from the official Piaggio (B2B) spare parts catalog. There are over one hundred applications: here they are grouped by brand and family. If your model is not listed, send us your chassis number and we will verify it.

Items to replace with the belt

• Variator rollers – these are the natural partners of the belt: if they are ovalled, the new belt will wear unevenly.
• Half-pulley sliders – only a few euros, but if they have play, they will cause the entire transmission to vibrate.
• Clutch and springs – these can be checked in two minutes while the casing is open.
• Rear hub oil – take advantage of this service to replace it.

Who it is perfect for

This is the right spare part for anyone with a Vespa GTS or GTV 300, an MP3, or a Piaggio Group 250-300 maxiscooter who is performing transmission maintenance — or has noticed that the scooter is no longer performing as it once did. It is not worth saving money on a belt: it is the part that transmits all the engine's torque to the wheel, and when it fails, it does so without warning, often damaging the casing in the process. Here you will find the original Piaggio part, exactly the one installed at the factory.

Frequently Asked Questions

Is it suitable for my Vespa GTS 300 HPE?
Yes: the Piaggio catalog specifies the 1A009598 for the Vespa GTS 300 HPE and the GTS 300 Super HPE, with ABS, from 2019 onwards, both Euro 4 and Euro 5. It is the same belt as the GTV 300 HPE, the Sei Giorni, and the MP3 300 HPE; in the official catalog, it is found under the "Drive pulley" heading.

How often should it be changed?
The exact interval is indicated in your model's owner's manual and must be followed: the belt is a limited-lifespan component. Regardless of mileage, it should be replaced if you notice cracks on the teeth, frayed edges, or visible width wear.

How do I know it needs changing?
Typical signs include loss of pick-up at start-off, slipping on inclines or while carrying a passenger, a whistling or noise from the transmission housing, and a lower top speed than usual. With the casing open, you can measure the remaining width and check the condition of the teeth.

Is it original or an equivalent?
It is the original Piaggio spare part with manufacturer code 1A009598, supplied in the Piaggio Group sleeve shown in the photo. It is not a third-party belt; it is the same one the manufacturer installs in production and prescribes in the catalog.