Built for durability and heat resistance, these valves are designed to withstand extreme temperatures and provide long-lasting reliability. They're constructed from a high temperature alloy for superior strength and corrision resistance.

These Interstate-McBee replacement parts are compatible with B/ISB/QSB applications. These engines are known for their reliability and efficiency, making them popular in applications from light-duty trucks to heavy machinery. With advanced technologies like electronic fuel control and turbocharging, they have delivered impressive performance since the late 90's while minimizing emissions. Their durability and versatility make them ideal for various industries, including agriculture and construction and they are still being produced today.