New Cylinder Valve Cover Gasket fits for Volvo 1378870 1378-870 All Parts come with 90 days warranty backed by great customer service. The best high-carbon steel. All parts that contain metal use an expensive heat treatment process that improves metal strength and performance, also our parts use a higher level of polish to allow the bearing to roll smoother and last longer. Each Individual component of this part is made with high quality materials. Unlike our competitors Febest uses only high quality Natural Rubber (75%) and (25%) synthetic Rubber. This means that it is more durable, will last longer, and can handle temperatures from -40 to +140 degrees. The Rubber wont rub off on your hand like the cheap replacement parts offered by competitors The synthetic lubricant uses is 10x as expensive as our competitors, and lasts 3x as long. All parts are of the utmost quality. We have specially developed metals and rubbers that create a super durable, and long lasting end product.