The Mack 25171192 Fuel Pressure Gauge is a replacement part specifically designed for Mack heavy equipment. As a 2-inch gauge, it accurately monitors fuel pressure to ensure optimal performance and efficiency. The gauge is a genuine replacement part from Mack, a trusted brand known for its durable and reliable products in the heavy equipment industry. With a focus on precision and quality, this fuel pressure gauge is an essential component for maintaining the functionality of Mack equipment.