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

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

✓ Strengths

• Original Piaggio spare part – this is the original equipment belt, supplied in Piaggio Group packaging, not an equivalent.
• This belt determines how the scooter performs – original development and cross-section maintain the variator's gear ratio, thus ensuring standard acceleration, pick-up, and top speed.
• Toothed V-belt profile – the internal teeth make it flexible on the variator's radii and limit overheating.
• Twenty years of models with a single code – covers Piaggio Group's 250 and 300 models from 2003 up to the current HPE models.
• Scheduled maintenance part – it is replaced at due date, along with rollers and sliders: preventing a breakdown costs much less than repairing a broken belt on the road.

Technical features

Vehicle compatibility

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

To be replaced along with the belt

• Variator rollers – they are the belt's natural partner: if they are ovalized, the new belt will wear improperly.
• Sliders (shoes) of the half-pulley – a few euros, but if they have play, they will make the entire transmission vibrate.
• Clutch and springs – with the crankcase open, they can be checked in two minutes.
• Rear hub oil – take advantage of the intervention to replace it.

Who is it perfect for?

It is the right spare part for those who own a Vespa GTS or GTV 300, an MP3 or a 250-300 maxiscooter from the Piaggio Group and are performing transmission maintenance — or have noticed that the scooter no longer accelerates as before. It is not advisable to save money on the 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 taking the crankcase with it. Here you will find the original Piaggio part, the one installed at the factory.

Frequently Asked Questions

Is it suitable for my Vespa GTS 300 HPE?
Yes: the Piaggio catalog indicates 1A009598 for the Vespa GTS 300 HPE and the GTS 300 Super HPE, ABS, from 2019 onwards, both Euro 4 and Euro 5. It is the same belt as the GTV 300 HPE and Sei Giorni and the MP3 300 HPE: on the official table, it is listed under "Drive Pulley".

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-life part. Regardless of mileage, it should be replaced if you notice cracks on the teeth, frayed edges, or noticeably worn width.

How do I know if it needs to be changed?
Signs include loss of initial acceleration, slipping uphill or with a passenger, a whistling or noise from the transmission compartment, and a lower top speed than usual. With the crankcase open, the remaining width is measured and the teeth are checked.

Is it original or an equivalent?
It is the original Piaggio spare part with manufacturer code 1A009598, supplied in the Piaggio Group packaging you see in the photo. It is not an aftermarket belt: it is the same one the manufacturer installs in production and specifies in the catalog.