Intake Manifold Gasket 2 piece set. It is most commonly used for (and not limited to) GY6 style 150cc ATV, Dirt Bike, and Scooter engines. Includes one plastic gasket and one paper gasket. Gasket set has a overall length of 58mm, 39mm wide, 4mm thick with a centre hole of 23mm. Mounting holes are 44mm apart centre to centre.