The Piaggio Typhoon headlight bulb specifications include H8 and H3 sizes for high beam operation and H8 size for low beam operation. Replacement chart data covers 2005 through 2019 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H8 bulb is a single-filament halogen type operating at 12V and 35W, built to ECE standards with a PGJ19-1 base, and carries approval for use in the US as well as European and worldwide markets.
The H3 bulb is also a single-filament halogen type, though it operates at a higher wattage of 55W on a 12V circuit, uses a PK22s base, and holds approval across ECE, US, and Japanese markets.
The PGJ19-1 base of the H8 and the PK22s base of the H3 are physically incompatible with each other, meaning the two bulb types are not interchangeable despite both being single-filament halogen designs.
On the Piaggio Typhoon, the high beam headlight used the H3 bulb in 2005 and 2007, then transitioned to the H8 for the 2011-2019 model years.
The low beam headlight on the Piaggio Typhoon used the H8 bulb across all listed model years, spanning 2005-2019.
From 2011 onward, both the high beam and low beam headlights on the Typhoon share the H8 specification, which means a single bulb type serves both functions during that period.
In the 2005 and 2007 model years, the Typhoon used different bulb types for the high and low beam positions, with the H3 in the high beam and the H8 in the low beam, making those two positions non-interchangeable.