Quick view Compare 49cc 4-stroke Gasket set (130-18) Top End Gasket Set for 49cc or 50cc 4-stroke horizontal cylinder, Honda style engines. 49cc 4-stroke Gasket set Specifications Base Gasket Inner Diameter: 52mm Head Gasket Inner Diameter: 47.5mm Regular Price(MSRP) $42.00 Season Special $9.99 Add to Wishlist Add to Cart