Vespa GTS 250/300 Water Pump Gasket

Right Crankcase Water Pump Gasket for Vespa GTS 250/300

This gasket for the right crankcase water pump is built to fit a range of Vespa and Piaggio scooters, sealing the water pump assembly so coolant stays where it belongs. A failing seal can allow coolant to escape and lead to serious overheating. Swapping out a worn or damaged gasket helps keep the engine running efficiently. Like other Vespa scooter parts, it is meant to slot directly into the spot the old gasket occupied.

Keeping Coolant and Oil Apart

At the mating surface, this gasket forms a solid barrier that keeps coolant and engine oil from mixing. Keeping those fluids separate supports engine performance and service life. It is made from an aramid-fiber material designed to handle the temperatures and pressures typical of a cooling system, so the seal stays dependable over time.

Preparing the Surface and Installing

The gasket is cut to line up precisely with the existing dowels and bolt holes. Before fitting the new one, clean the surface thoroughly, removing any old sealant or leftover residue from the casing, to avoid leaks. If you are dealing with a coolant leak, it is worth inspecting the internal seals too so the repair is complete.

Specifications

• Material: Aramid fiber compound
• Position: Right crankcase cover
• OEM Part Number: 840504
• Component Type: Water pump housing gasket
• Fits: Vespa GTS 250/300, Super, GTV, GT 200, Piaggio BV 250/300/350, MP3 250/300, Aprilia Atlantic 250

Fitment

Fits:

• Vespa GTS 250 / 300 / Super / GTV (Quasar 250cc-300cc and HPE liquid-cooled engines)
• Vespa GT 200 / Granturismo (200cc liquid-cooled Leader engine)
• Piaggio BV 250 / BV 300 / BV 350 (250cc, 300cc and 350cc liquid-cooled engines)
• Piaggio MP3 250 / 300 (250cc and 300cc three-wheel models)
• Aprilia Atlantic 250 / SportCity 250 & 300 (all liquid-cooled Quasar configurations)

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