This is a really good quality Mazda Type B Engine Gasket Kit but check the engine type; they are a little different. My mechanic couldn't fix a simple oil leak. So I got the job done myself in the driveway in less than 2 hours [I was just taking my time]. A very good seal is achieved with a small amount of Permatex 82180 Ultra Black RTV Sealer on the underside only. This stopped the oil leak which my mechanic couldn't do [this may have been an oversight as his stupid helper did the job]. Either way, this is the best pad you can buy anywhere, and Revain usually sells it for 2/3 the price.