Thermostat illustration – not the actual part
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Thermostat illustration – not the actual partDiesel Parts Direct logo

Aftermarket parts may appear slightly different, including the packaging.

Cummins4BT / 6BTThermostats

DS-3954830 Thermostat Kit For Cummins 4BT And 6BT Diesel Engines

190degF/ 88degC

OEM #: 3954830SKU: DS3954830

Ships in 1-2 days

$28.79

Taxes and Shipping are calculated at checkout

Special Order Item - not eligible for return

This is a Thermostat Kit for 4BT and 6BT Cummins engines.

SKU DS3954830
OEM Number 3954830
Part Type Thermostats
OEM Brand CUMMINS

Aftermarket warranty

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Call any of our friendly Parts Dept. Specialists with your engine serial number, and we can quickly verify whether this part is the correct part for your engine — no guesswork.

Phone: 888.687.0539

Don't know how to find your engine serial number? Go to our Engine Help Center for assistance.