The OEM CAT 231-5128 22mm Pressure Relief Valve Cover is a high-quality replacement part specifically designed for heavy equipment machinery. Made by the reputable brand Caterpillar (CAT), this valve cover is a crucial component for maintaining the proper pressure relief function of the equipment. With a 22mm diameter, this model ensures a secure fit and reliable performance for extended use in industrial applications. Ideal for businesses and individuals seeking genuine CAT parts to ensure the continued efficiency of their heavy equipment.