Factory Spec Gasket General Motors GM Cylinder Head Gasket 12552362 NOS Engine Gasket Replacement Offering the quality, reliability, and durability of GM OE 1985-2014 GM Cylinder Head Gasket 12552362 GM Manufactured to GM OE specification for fit, form, and function 2014-2020 GM OEM NEW 14-20 GM Chevrolet Sierra Silverado Engine... This original equipment gasket will provide the same performance, durability, and service life as your factory original equipment. Multi-Layer Steel Cylinder Head Gasket for Select Ford/Mazda/Mercury International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.