The OEM parts comes with 1 packs of full 420cc GX390 engine gaskets. The iron head gasket are for cylinder diameter 88mm. Carberetor and crankcase gaskets are made of Non Asbestos materials. Each pack includes 1 sets of carburetor mounting gaskets which has 1 carb gasket, 2 air filter gasket and 1 insulator gaskets together, and 2 cylinder head gasket, 1 cylinder head cover gasket,1 exhaust or muffler gasket, 1 crankcase gasket, 2 crank shaft oil seals. All the gaskets are from machine factory's supplier, brand new originally. The color of the gaskets you get may be not exactly the same as the pictures because of different batches of raw material, light and photograghy conditions but the quality standard is the same. Fit for Honda & Clone GX390 420cc 389cc etc., also many generators. The clones of GX may vary on detailed sizes so please check the part# you need or compare the pictures carefully before purchase.