The Stainless & Plastic Check Engine Timer is a practical and reliable product designed to fit most Peterbilt makes and models. This timer is made with high-quality stainless steel and durable plastic materials, ensuring its longevity and effectiveness. With its easy installation process, this timer allows for efficient engine shutdown, providing convenience and peace of mind. Its compatibility and durability make it a valuable addition to any Peterbilt vehicle, ensuring optimal performance and reducing the risk of engine damage.