• Durable construction providing superior reliability
• Direct replacement for OE part 3954830
• Cummins Engine ISB/QSB Application
• Genuine PAI product including a factory 2-Year Warranty
• Quality You Can Trust - PAI has established themselves as the leading supplier of aftermarket heavy duty diesel parts, with quality standards that always meet or exceed OE standards

Features

• DETAIL - PAI thermostats are manufactured with an incredible amount of attention to detail and accuracy. Our thermostats are precision designed to meet or exceed the OEM specifications. After production, the thermostats are tested to ensuring exact fitment and unparalleled product quality.
• STRENGTH - PAI thermostats are made of industry leading materials and processes. Our thermostats are made to last. Our thermostats feature quality springs and temperature sensing elements.
• VARIETY - PAI is a market leader in thermostats and related parts. We have been manufacturing and expanding our product offerings since 1973. If there is a thermostat you need, and we do not have it, there is a good chance we are working diligently to make it. Whether you are looking for a small or large engine coolant thermostat or anything between; PAI has you and all your vehicle needs covered.