This Thermostat replaces old part numbers DS-3915908 and DS-3917324.
This high quality aftermarket replacement part is guaranteed to meet OEM specifications and is shipped with a 12-month warranty.
Look no further than Diesel Parts Direct for thermostats for Cummins 4BT and 6BT engines. Regulating coolant flow and temperature is critical for the successful operation of Cummins 4BT and 6BT engines. Malfunctioning thermostats can lead to the overheating of your engine, so when you need to replace your 3.9 or 5.9 Cummins thermostat, we’ve got you covered.
From genuine Cummins thermostats to aftermarket replacements like the DS-3972071, we stock them all, with many available to ship the same day of purchase. All parts are covered by our Satisfaction Guarantee so you can trust us to deliver only the highest-quality parts to your door.
Keep your Cummins B Series engines operating at peak performance with thermostats from Diesel Parts Direct.
Call us at 855.470.3525 if you have any questions about this item.