Cummins 3928639 Thermostat For 4BT And 6BT Diesel Engines
Cummins 3928639 Thermostat For 4BT And 6BT Diesel Engines - view 2
Cummins 3928639 Thermostat For 4BT And 6BT Diesel Engines - view 3
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Cummins 3928639 Thermostat For 4BT And 6BT Diesel EnginesCummins 3928639 Thermostat For 4BT And 6BT Diesel Engines - view 2Cummins 3928639 Thermostat For 4BT And 6BT Diesel Engines - view 3Diesel Parts Direct logo

Aftermarket parts may appear slightly different, including the packaging.

Cummins4BT / 6BTThermostats

Cummins 3928639 Thermostat For 4BT And 6BT Diesel Engines

83 Deg C / 181 Deg F

Genuine Cummins Part

OEM #: 3928639SKU: 3928639

Ships in 4-5 days

$109.07

Taxes and Shipping are calculated at checkout

Return with 20% Fee

This is a genuine Cummins thermostat for 4BT and 6BT engines.

SKU 3928639
OEM Number 3928639
Part Type Thermostats
OEM Brand CUMMINS

Aftermarket warranty

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Genuine Cummins parts warranty

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  • Orders are processed the same or next business day
  • Expedited shipping options available at Checkout
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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.

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